Analog Circuit Design, Volume 3: Design Note Collection

Design Note Collection, the third book in the Analog Circuit Design series, is a comprehensive volume of applied circuit design solutions, providing elegant and practical design techniques. Design Notes in this volume are focused circuit explanations, easily applied in your own designs. This book includes an extensive power management section, covering switching regulator design, linear regulator design, microprocessor power design, battery management, powering LED lighting, automotive and industrial power design. Other sections span a range of analog design topics, including data conversion, data acquisition, communications interface design, operational amplifier design techniques, filter design, and wireless, RF, communications and network design. Whatever your application -industrial, medical, security, embedded systems, instrumentation, automotive, communications infrastructure, satellite and radar, computers or networking; this book will provide practical design techniques, developed by experts for tackling the challenges of power management, data conversion, signal conditioning and wireless/RF analog circuit design.

• A rich collection of applied analog circuit design solutions for use in your own designs.
• Each Design Note is presented in a concise, two-page format, making it easy to read and assimilate.
• Contributions from the leading lights in analog design, including Bob Dobkin, Jim Williams, George Erdi and Carl Nelson, among others.
• Extensive sections covering power management, data conversion, signal conditioning, and wireless/RF.

Table of Contents

PART 1 : Power Management
Section 1 : Power Management Design
1 High performance single phase DC/DC controller with power system management
2 One device replaces battery charger, pushbutton controller, LED driver and voltage regulator ICs in portable electronics
3 Simple circuit replaces and improves on power modules at less than half the price
4 Wide input range, high efficiency DDR termination power supply achieves fast transient response
5 Minimize input capacitors in multioutput, high current power supplies
6 Dual phase high efficiency mobile CPU power supply minimizes size and thermal stress
7 SOT-23 SMBus fan speed controller extends battery life and reduces noise
8 Active voltage positioning reduces output capacitors
9 5V to 3.3V circuit collection
10 Hex level shift shrinks board space
Section 2 : Microprocessor Power Design
11 Cost-effective, low profile, high efficiency 42A supply powers AMD Hammer processors
12 Efficient, compact 2-phase power supply delivers 40A to Intel mobile CPUs
13 Microprocessor core supply voltage set by I2C bus without VID lines
14 High efficiency I/O power generation for mobile Pentium III microprocessors
15 PolyPhase sur face mount power supply meets AMD Athlon processor requirements with no heat sink
16 2-step voltage regulation improves performance and decreases CPU temperature in portable computers
17 Dual regulators power Pentium processor or upgrade CPU
18 Big power for big processors: a synchronous regulator
19 High efficiency power sources for Pentium processors
20 Fast regulator paces high performance processors
21 Techniques for deriving 3.3V from 5V supplies
22 Regulator circuit generates both 3.3V and 5V outputs from 3.3V or 5V to run computers and RS232
Section 3 : Switching Regulator Basics
23 Tiny, highly flexible, dual boost/inverter tracks supplies
24 Ultralow noise switching power supplies simplify EMI compliance
25 Monolithic DC/DC converters break 1MHz to shrink board space
26 Capacitor and EMI considerations for new high frequency switching regulators
27 Switching regulator generates both positive and negative supply with a single inductor
28 Floating input extends regulator capabilities
29 Programming pulse generators for flash memories
30 Achieving microamp quiescent current in switching regulators
31 Inductor selection for switching regulators
Section 4 : Switching Regulator Design: Buck (Step-Down)
32 Inverting DC/DC controller converts a positive input to a negative output with a single inductor
33 20V, 2.5A monolithic synchronous buck SWITCHER+ with input current, output current and temperature sensing/limiting capabilities
34 1.5A rail-to-rail output synchronous step-down regulator adjusts with a single resistor
35 42V, 2.5A synchronous step-down regulator with 2.5μA quiescent current
36 Bootstrap biasing of high input voltage step-down controller increases converter efficiency
37 36V, 3.5A dual monolithic buck with integrated die temperature monitor and standalone comparator block
38 High efficiency, high density 3-phase supply delivers 60A with power saving Stage Shedding, active voltage positioning and nonlinear control for superior load step response
39 2-phase synchronous buck controller features light load Stage Shedding mode, active voltage positioning, low RSENSE and remote VOUT sensing
40 Dual output high efficiency converter produces 3.3V and 8.5V outputs from a 9V to 60V rail
41 Dual output step-down controller produces 10% accurate, efficient and reliable high current rails
42 15VIN, 4MHz monolithic synchronous buck regulator delivers 5A in 4mm × 4mm QFN
43 Dual output buck regulator with current partitioning optimizes efficiency in space-sensitive applications
44 Triple buck regulator features 1-wire dynamically programmable output voltages
45 Buck conver ter eases the task of designing auxiliary low voltage negative rails
46 Monolithic synchronous step-down regulator delivers up to 12A from a wide input voltage range
47 Step-down synchronous controller operates from inputs down to 2.2V
48 Compact I2C-controllable quad synchronous step-down DC/DC regulator for power-conscious portable processors
49 Compact triple step-down regulator offers LDO driver and output tracking and sequencing
50 A positive-to-negative voltage converter can be used for stable outputs even with a widely varying input
51 One IC generates three sub-2V power rails from a Li-Ion cell
52 36V 2A buck regulator integrates power Schottky
53 Triple output 3-phase controller saves space and improves per formance in high density power converters
54 Dual monolithic step-down switching regulator provides 1.6A outputs with reduced EMI and VOUT as low as 0.8V
55 A compact dual step-down converter with VOUT tracking and sequencing
56 Tiny monolithic step-down regulators operate with wide input range
57 Cascadable 7A point-of-load monolithic buck converter
58 High voltage current mode step-down conver ter with low power standby capability
59 Low EMI synchronous DC/DC step-down controllers offer programmable output tracking
60 ThinSOT micropower buck regulator has low output ripple
61 Tiny versatile buck regulators operate from 3.6V to 36V input
62 High accuracy synchronous step-down controller provides output tracking and programmable margining
63 60V, 3A step-down DC/DC converter has low dropout and 100μA quiescent current
64 Monolithic synchronous regulator drives 4A loads with few external components
65 High performance power solutions for AMD Opteron and Athlon 64 processors
66 High current step-down controller regulates to 0.6V output from 3V input
67 Efficient dual polarity output converter fits into tight spaces
68 Dual output supply powers FPGAs from 3.3V and 5V inputs
69 3A, 2MHz monolithic synchronous step-down regulator provides a compact solution for DDR memory termination
70 60V/3A step-down DC/DC converter maintains high efficiency over a wide input range
71 Monolithic synchronous step-down regulators pack 600mA current rating in a ThinSOT package
72 High efficiency adaptable power supply for XENPAK 10Gb/s Ethernet transceivers
73 High voltage buck regulators provide high current, low profile power solutions for FireWire peripherals
74 Efficient DC/DC converter provides two 15A outputs from a 3.3V backplane
75 60V step-down DC/DC conver ter maintains high efficiency
76 Tiny buck regulator accepts inputs from 3.6V to 25V and eliminates heat sink
77 1.4MHz switching regulator draws only 10μA supply current
78 10μA quiescent current step-down regulators extend standby time in handheld products
79 Low cost PolyPhase DC/DC converter delivers high current
80 Unique high efficiency 12V converter operates with inputs from 6V to 28V
81 Low cost, high efficiency 42A DC/DC converter
82 High efficiency PolyPhase converter uses two inputs for a single output
83 High current dual DC/DC converter operates from 3.3V input
84 Low cost surface mount DC/DC converter delivers 100A
85 high voltage, low noise buck switching regulator
86 Low cost, high efficiency 30A low profile PolyPhase converter
87 2-phase switching regulator fits in tight places
88 Low dropout 550kHz DC/DC controller operates from inputs as low as 2V
89 Switching regulator controllers set a new standard for transient response
90 60V, high efficiency buck switching regulators in SO-8
91 High efficiency, monolithic synchronous step-down regulator works with single or dual Li-Ion batteries
92 A low cost, efficient mobile CPU power
93 Optimizing a DC/DC converter’s output capacitors
94 Step-down converter operates from single Li-Ion cell
95 Optimized DC/DC converter loop compensation minimizes number of large output capacitors
96 A high efficiency 500kHz, 4.5A step-down converter in an SO-8 package
97 High efficiency switching regulators draw only 10μA supply current
98 High power synchronous buck converter delivers up to 50A
99 Single IC, five output switching power supply system for portable electronics
100 Low noise switching regulator helps control EMI
101 Efficient processor power system needs no heat sink
102 A new, high efficiency monolithic buck converter
103 Switching regulator provides high efficiency at 10A loads
104 Dual output regulator uses only one inductor
105 Highly integrated high efficiency DC/DC conversion
106 Ultralow power, high efficiency DC/DC converter operates outside the audio band
107 Triple output 3.3V, 5V, and 12V high efficiency notebook power supply
108 Single device provides 3.3V and 5V in surface mount
109 A simple high efficiency, step-down switching regulator
110 Delivering 3.3V and 5V at 17W
111 Low parts count DC/DC converter circuit with 3.3V and 5V outputs
112 New synchronous step-down switching regulators achieve 95% efficiency
113 High performance frequency compensation gives DC-to-DC converter 75μs response with high stability
Section 5 : Switching Regulator Design: Boost Converters
114 1μA IQ synchronous boost converter extends battery life in portable devices
115 Ultralow power boost converters require only 8.5μA of standby quiescent current
116 Tiny dual full-bridge Piezo motor driver operates from low input voltage
117 Tiny synchronous step-up converter starts up at 700mV
118 High efficiency 2-phase boost converter minimizes input and output current ripple
119 ThinSOT switching regulator controls inrush current
120 Dual DC/DC converter with integrated Schottkys generates ±40V outputs and consumes only 40μA quiescent current
121 Compact step-up converter conserves battery power
122 2-phase boost converter delivers 10W from a 3mm × 3mm DFN package
123 4-phase monolithic synchronous boost converter delivers 2.5A with output disconnect in a 5mm × 5mm QFN package
124 Boost regulator makes low profile SEPIC with both step-up and step-down capability
125 Dual monolithic buck regulator provides two 1.4A outputs with 2-phase switching to reduce EMI
126 4MHz monolithic synchronous step-down regulators bring high efficiency to space-sensitive applications
127 Tiny and efficient boost converter generates 5V at 3A from 3.3V bus
128 Tiny boost controller provides efficient solutions for low voltage inputs
129 Current-limited DC/DC converter simplifies USB power supplies
130 3MHz micropower synchronous boost converters deliver 3W from two cells in a tiny MSOP package
131 SOT-23 switching regulator with integrated 1A switch delivers high current outputs in a small footprint
132 A 500kHz, 6A monolithic boost converter
133 Micropower 600kHz step-up DC/DC converter delivers 5V at 1A from a li-Ion cell
134 Ultralow noise switching regulator controls EMI
135 Off-line low noise power supply does not require filtering to meet FCC emission requirements
136 “LCD bias” and “backup supply” applications for a micropower DC/DC converter
137 Short-circuit protection for boost regulators
138 Single-cell micropower fixed-frequency DC/DC converter needs no electrolytic capacitors
139 2 AA cells replace 9V battery, extend operating life
140 A simple, surface mount flash memory Vpp generator
141 No design switching regulator 5V, 5A buck (step-down) regulator
Section 6 : Switching Regulator Design: DC/DC Controllers
142 Dual controller provides 2μs step response and 92% efficiency for 1.5V rails
143 Dual DC/DC controller for DDR power with differential VDDQ sensing and ±50mA VTT reference
144 Single resistor sets positive or negative output for DC/DC converter
145 Multiphase DC/DC controller pushes accuracy and bandwidth limits
146 2-phase DC/DC controller makes fast, efficient and compact power supplies
147 High performance 3-phase power supply delivers 65A and high efficiency over the entire load range
148 Reduce component count and improve efficiency in SLIC and RF power supplies
149 SOT-23 DC/DC converters generate up to ±35V outputs and consume only 20μA of quiescent current
Section 7 : Switching Regulator Design: Buck-Boost Controllers
150 80V synchronous 4-switch buck-boost controller delivers hundreds of watts with 99% efficiency
151 Wide input voltage range boost/inverting/SEPIC controller works down to an input voltage of 1.6V
152 High efficiency 4-switch buck-boost controller provides accurate output current limit
153 Buck-boost controller simplifies design of DC/DC converters for handheld products
154 Wide input voltage range buck-boost converter simplifies design of variable input supplies
155 Buck or boost: rugged, fast 60V synchronous controller does both
156 Industry’s first 4-switch buck-boost controller achieves highest efficiency using a single inductor
157 High input voltage monolithic switcher steps up and down using a single inductor
158 Supply 2A pulses for GSM transmission from 500mA USB or PCMCIA ports
159 Micropower buck/boost circuits: converting three cells to 3.3V
160 250kHz, 1mA IQ constant frequency switcher tames portable systems power
161 DC/DC converters for portable computers
162 No design switching regulator 5V buck-boost (positive-to-negative) regulator
Section 8 : Linear Regulator Design
163 High voltage inverting charge pump produces low noise positive and negative supplies
164 80V linear regulator is micropower
165 Very low dropout (VLDO) linear regulators supply low voltage outputs
166 Lowest noise SOT-23 LDOs have 20μA quiescent current, 20μVRMS noise
167 High efficiency linear and switching solutions for splitting a digital supply
168 UltraFast linear regulator eliminates all bulk tantalum and electrolytic output capacitors
169 Fast response low dropout regulator achieves 0.4 dropout at 4A
170 Create a virtual ground with a sink/source voltage regulator
171 5V to 3.3V regulator with fail-safe switchover
172 A simple ultralow dropout regulator
173 Powering 3.3V digital systems
174 A simple ultralow dropout regulator
Section 9 : Micromodule (μModule) Power Design
175 Dual 13A μModule regulator with digital interface for remote monitoring & control of power
176 36V input, low output noise, 5A μModule regulator for precision data acquisition systems
177 Step-down μModule regulator produces 15A output from inputs down to 1.5V—no bias supply required
178 Dual μModule DC/DC regulator produces high efficiency 4A outputs from a 4.5V to 26.5V input
179 Triple output DC/DC μModule regulator in 15mm × 15mm × 2.8mm surface mount package replaces up to 30 discrete components
180 Dual 8A DC/DC μModule regulator is easily paralleled for 16A
181 μModule buck-boost regulators offer a simple and efficient solution for wide input and output voltage range applications
182 8A low voltage, low profile DC/DC μModule regulator in 9mm × 15mm package weighs only 1g
183 Simple and compact 4-output point-of-load DC/DC μModule system
184 10A high performance point-of-load DC/DC μModule regulator
Section 10 : Switching Regulators for Isolated Power Design
185 Isolated converters have buck simplicity and performance
186 Multiple output isolated power supply achieves high efficiency with secondary side synchronous post regulator
187 Chip set offers low cost alternative to 48V telecom modules
188 5V high current step-down switchers
Section 11 : Power Control & Ideal Diode Design
189 Ideal diodes protect against power supply wiring errors
190 Ideal diode controller eliminates energy wasting diodes in power OR-ing applications
191 Replace ORing diodes with MOSFETs to reduce heat and save space
192 Dual monolithic ideal diode manages multiple power inputs
193 PCMCIA socket voltage switching
194 PC card power management techniques
Section 12 : Battery Management
195 Complete battery charger solution for high current portable electronics
196 Battery conditioner extends the life of Li-Ion batteries
197 Simple calibration circuit maximizes accuracy in Li-Ion battery management systems
198 USB power solution includes switching power manager, battery charger, three synchronous buck regulators and LDO
199 Switching USB power manager with PowerPath control offers fastest charge time with lowest heat
200 Universal Li-Ion battery charger operates from USB and 6V to 36V input in just 2cm2
201 Handheld high power battery charger
202 Fast, high efficiency, standalone NiMH/NiCd battery charging
203 Dual Smart Battery charger simplifies battery backup for servers
204 Advanced topology USB battery charger optimizes power utilization for faster charging
205 Simplify battery charging from the USB
206 Li-Ion linear charger allows fast, full current charging while limiting PC board temperature to 85°C
207 Dual battery power manager increases run time by 12% and cuts charge time in half
208 Single inductor, tiny buck-boost converter provides 95% efficiency in lithium-ion to 3.3V applications
209 Tiny step-up/step-down power supply delivers 3.3V at 1.3A in battery-powered devices
210 A very low cost SOT-23 Li-Ion battery charger requires little area and few components
211 Simple Li-Ion charge termination using the LT1505
212 Li-Ion charge termination IC interfaces with PWM switchers
213 A miniature, low dropout battery charger for lithium-ion batteries
214 New charger topology maximizes battery charging speed
215 Inexpensive circuit charges lithium-ion cells
216 Battery backup regulator is glitch-free and low dropout
217 Dual PowerPath controller simplifies power management
218 Low dropout, constant-current/constant-voltage 3A battery charger
219 Fused lead battery charger ICs need no heat sinks
220 New micropower, low dropout regulators ease battery supply designs
221 Micropower DC/DC converter with independent low-battery detector
222 High efficiency lithium-ion battery charger
223 A 4-cell NiCd regulator/charger for notebook computers
224 Switching regulator allows alkalines to replace NiCds
Section 13 : Energy Harvesting & Solar Power Circuits
225 Tiny 2-cell solar panel charges batteries in compact, off-grid devices
226 Energy harvester produces power from local environment, eliminating batteries in wireless sensors
Section 14 : Charge Pump DC/DC Converter Design
227 Step-down charge pumps are tiny, efficient and very low noise
228 New charge pumps offer low input and output noise
229 Step-up/step-down DC/DC conversion without inductors
230 Ultralow quiescent current DC/DC converters for light load applications
Section 15 : Flyback Converter Design
231 Micropower isolated flyback converter with input voltage range from 6V to 100V
232 Flyback controller simplifies design of low input voltage DC/DC converters
233 Flyback controller improves cross regulation for multiple output applications
234 No RSENSE controller is small and efficient in boost, flyback and SEPIC applications
235 Isolated flyback converter regulates without an optocoupler
236 Isolated DC/DC conversion
237 Isolated power supplies for Local Area Networks
238 A battery-powered laptop computer power supply
Section 16 : Supercapacitor Charging
239 Supercapacitor-based power backup system protects volatile data in handhelds when power is lost
240 Supercapacitor-based power backup prevents data loss in RAID systems
241 Complete energy utilization improves run time of a supercap ride-through application by 40%
242 Supercapacitors can replace a backup battery for power ride-through applications
Section 17 : Current Source Design
243 Convert temperature to current at high linearity with current source
244 Versatile current source safely and quickly charges everything from large capacitors to batteries
Section 18 : Hot Swap and Circuit Protection
245 Protect sensitive circuits from overvoltage and reverse supply connections
246 Simple energy-tripped circuit breaker with automatic delayed retry
247 Hot Swap controller, MOSFET and sense resistor are integrated in a 5mm × 3mm DFN for accurate current limit and load current monitoring in tight spaces
248 Hot Swap solution meets AMC and MicroTCA standards
249 An easy way to add auxiliary control functions to hot swap cards
250 Electronic circuit breaker in small DFN package eliminates sense resistor
251 AdvancedTCA Hot swap controller monitors power distribution
252 Protecting and monitoring hot swappable cards in high availability systems
253 AdvancedTCA Hot Swap controller eases power distribution
254 PCI Express power and MiniCard solutions
255 Low voltage hot swap controller ignores backplane noise and surges
256 Hot Swap circuit meets InfiniBand specification
257 Hot Swap and buffer I2C buses
258 Power supply isolation controller simplifies hot swapping the CompactPCI bus for 5V-/3.3V-only applications
259 A 24V/48V hot swap controller
260 Dual channel Hot Swap controller/power sequencer allows insertion into a live backplane
261 Hot swapping the compactPCI bus
262 Power solutions for the device bay
263 Hot swapping the PCI bus
264 Safe hot swapping
Section 19 : Power over Ethernet
265 Active bridge rectifiers reduce heat dissipation within PoE security cameras
266 High power PoE PD interface with integrated flyback controller
267 Simple battery circuit extends Power over Ethernet (PoE) peak current
268 Fully autonomous IEEE 802.3af power over ethernet midspan PSE requires no microcontroller
269 Power over Ethernet isolated power supply delivers 11.5W at 90% efficiency
Section 20 : System Monitoring and Control
270 Pushbutton on/off controller with failsafe voltage monitoring
271 Versatile voltage monitors simplify detection of overvoltage and undervoltage faults
272 Power supply sequencing made simple
273 Pushbutton on/off controller simplifies system design
274 Tracking and sequencing made simple with tiny point-of-load circuit
275 Accurate power supply sequencing prevents system damage
276 Power supply tracker can also margin supplies
277 Dual micropower comparator with integrated 400mV reference simplifies monitor and control functions
278 Monitor network compliant −48V power supplies
279 Multiple power supplies track during power-up
280 I2C fan control ensures continuous system cooling
281 Monitor system temperature and multiple supply voltages and currents
Section 21 : Powering LED Lighting & Other Illumination Devices
282 60V, synchronous step-down high current LED driver
283 60V buck-boost controller drives high power LEDs, charges batteries and regulates voltage with up to 98.5% efficiency at 100W and higher
284 Offline LED lighting simplified: high power factor, isolated LED driver needs no opto-isolators and is TRIAC dimmer compatible
285 Reduce the cost and complexity of medium LCD LED backlights with a single inductor LED driver for 60 LEDs
286 100V controller drives high power LED strings from just about any input
287 Triple LED driver in 4mm × 5mm QFN supports LCD backlights in buck, boost or buck-boost modes and delivers 3000:1 PWM dimming ratio
288 μModule LED driver integrates all circuitry, including the inductor, in a surface mount package
289 Versatile TFT LCD bias supply and white LED driver in a 4mm × 4mm QFN
290 Tiny universal LED driver can gradate, blink or turn on nine individual LEDs with minimal external control
291 Drive large TFT-LCD displays with a space-saving triple-output regulator
292 Versatile high power LED driver controller simplifies design
293 High voltage buck converters drive high power LEDs
294 Wide input range 1A LED driver powers high brightness LEDs with automotive and 12VAC supplies
295 Monolithic converter drives high power LEDs
296 Quad output switching converter provides power for large TFT LCD panels
297 Basic flashlamp illumination circuitry for cellular telephones/cameras
298 DC/DC converter drives white LEDs from a variety of power sources
299 High efficiency ThinSOT white LED driver features internal switch and schottky diode
300 White LED driver in tiny SC70 package delivers high efficiency and uniform LED brightness
301 Photoflash capacitor charger has fast efficient charging and low battery drain
302 High efficiency white LED driver guarantees matching LED brightness
303 High power desktop LCD backlight controller supports wide dimming ratios while maximizing lamp lifetime
304 Tiny regulators drive white LED backlights
305 High power CCFL backlight inverter for desktop LCD displays
306 Low input voltage CCFL power supply
307 A precision wideband current probe for LCD backlight measurement
308 Floating CCFL with dual polarity contrast
Section 22 : Automotive and Industrial Power Design
309 Versatile industrial power supply takes high voltage input and yields from eight 1A to two 4A outputs
310 65V, 500mA step-down converter fits easily into automotive and industrial applications
311 2-phase, dual output synchronous boost converter solves thermal problems in harsh environments
312 High efficiency USB power management system safely charges Li-Ion/polymer batteries from automotive supplies
313 Low profile synchronous, 2-phase boost converter produces 200W with 98% efficiency
314 4-phase boost converter delivers 384W with no heat sink
315 Power monitor for automotive and telecom applications includes ADC and I2C interface
316 Direct efficient DC/DC conversion of 100V inputs for telecom/automotive supplies
317 Monolithic step-down regulator withstands the rigors of automotive environments and consumes only 100μA of quiescent current
318 Monitor and protect automotive systems with integrated current sensing
Section 23 : Video Design Solutions
319 High resolution video solutions using single 5V power
320 Pass HDMI compliance tests with ease
321 Video difference amplifier brings versatility to low voltage applications
322 Video signal distribution using low supply voltage amplifiers
323 Tiny RGB video multiplexer switches pixels at 100MHz
324 An adjustable video cable equalizer
325 4 × 4 video crosspoint has 100MHz bandwidth and 85dB rejection at 10MHz
326 Single 4-input IC gives over 90dB crosstalk rejection at 10MHz and is expandable
327 Send color video 1000 feet over low cost twisted-pair
328 Video circuits collection
329 Low cost differential input video amplifiers simplify designs and improve performance
PART 2 : Mixed Signal
Section 1 : Data Conversion: Analog-to-Digital
330 Generating a ±10.24V true bipolar input for an 18-bit, 1Msps SAR ADC
331 Driving a low noise, low distortion 18-bit, 1.6Msps ADC
332 Driving lessons for a low noise, low distortion, 16-bit, 1Msps SAR ADC
333 Maximize the performance of 16-bit, 105Msps ADC with careful IF signal chain design
334 Upgrade your microcontroller ADC to true 12-bit performance
335 Digitize a $1000 sensor with a $1 analog-to-digital converter
336 True rail-to-rail, high input impedance ADC simplifies precision measurements
337 Easy Drive ADCs simplify measurement of high impedance sensors
338 Easy Drive delta-sigma analog-to-digital converters cancel input current errors
339 16-bit ADC simplifies current measurements
340 12-bit ADC with sequencer simplifies multiple-input applications
341 A-to-D converter does frequency translation
342 Resolving very small temperature differences with a delta-sigma ADC
343 1- and 2-channel No Latency ΔΣ 24-bit ADCs easily digitize a variety of sensors, part 1
344 1- and 2-channel No Latency ΔΣ 24-bit ADCs easily digitize a variety of sensors, part 2
345 24-bit ADC measures from DC to daylight
346 High accuracy differential to single-ended converter for ±5V supplies
347 Micropower MSOP 10-bit ADC samples at 500ksps
348 16mW, serial/parallel 14-bit ADC samples at 200ksps
349 16-bit, 333ksps ADC achieves 90dB SINAD, −100dB THD and no missing codes
350 16-bit, 100ksps A/D converter runs on 5V supply
351 14-bit, 800ksps ADC upgrades 12-bit systems with 81.5dB SINAD, 95dB SFDR
352 Micropower 4- and 8-channel, 12-bit ADCs save power and space
353 1.25Msps, 12-bit ADC conserves power and signal integrity on a single 5V supply
354 Micropower ADC and DAC in SO-8 give PCs a 12-bit analog interface
355 Micropower 12-bit ADCs shrink board space
356 1.25Msps 12-bit A/D converter cuts power dissipation and size
357 500ksps and 600ksps ADCs match needs of high speed applications
358 5V and 3V, 12-bit ADCs sample at 300kHz on 75mW and 140kHz on 12mW
Micropower, SO-8, 8-bit ADCs sample at 1kHz on 3μA of supply current
Section 2 : Data Conversion: Digital-to-Analog
360 12-bit DAC in TSOT-23 includes bidirectional REF pin for connection to op amp or external high precision reference
361 Highly integrated quad 16-bit, SoftSpan, voltage output DAC for industrial and control applications
362 Multiple output range 16-bit DAC design made simple
363 Selecting op amps for precision 16-bit DACs
364 Applications versatility of dual 12-bit DAC
365 First dual 12-bit DACs in SO-8
366 3V and 5V 12-bit rail-to-rail micropower DACs combine flexibility and performance
367 12-bit rail-to-rail micropower dacs in an SO-8
Section 3 : Data Acquisition
368 16-channel, 24-bit ΔΣ ADC provides small, flexible and accurate solutions for data acquisition
369 A versatile 8-channel multiplexer
370 Temperature and voltage measurement in a single chip
371 Applications for a micropower, low charge injection analog switch
372 12-bit 8-channel data acquisition system interfaces to IBM PC serial port
373 Auto-zeroing A/D offset voltage
374 Complex data acquisition system uses few components
375 A two wire isolated and powered 10-bit data acquisition system
376 Closed loop control with data acquisition systems
377 Electrically isolating data acquisition systems
378 Temperature measurement using data acquisition systems
379 Sampling of signals for digital filtering and gated measurements
380 Data acquisition systems communicate with microprocessors over four wires
Section 4 : Communications Interface Design
381 Addressable I2C bus buffer provides capacitance buffering, live insertion and nested addressing in 2-wire bus systems
382 Single interface chip controls two smart cards
383 Isolated RS485 transceiver breaks ground loops
384 RS485 transceivers sustain ±60V faults
385 SMBus accelerator improves data integrity
386 Providing power for the IEEE1394 “FireWire”
387 5V RS232/RS485 multiprotocol transceiver
388 10Mbps multiple protocol serial chip set: Net1 and Net2 compliance by design
389 RS485 transceivers operate at 52Mbps over 100 feet of unshielded twisted pair
390 The “smart rock”: a micropower transponder
391 Power supplies for subscriber line interface circuits
392 Precision receiver delay improves data transmission
393 RS485 transceivers reduce power and EMI
394 Interfacing to V.35 networks
395 ESD testing for RS232 interface circuits
396 RS232 interface circuits for 3.3V systems
397 RS232 transceivers for handheld computers withstand 10kV ESD
398 Low power CMOS RS485 transceiver
399 Active termination for SCSI-2 bus
400 RS232 transceiver with automatic power shutdown control
401 A single supply RS232 interface for bipolar A to D converters
402 Design considerations for RS232 interfaces
403 New 12-bit data acquisition systems communicate with microprocessors over four wires
404 Extending the applications of 5V powered RS232 transceivers
405 New developments in RS232 interfaces
Section 5 : Instrumentation Design
406 System monitor with instrumentation-grade accuracy used to measure relative humidity
407 6-channel SAR ADCs for industrial monitoring and portable instruments
408 Instrumentation amplifiers maximize output swing on low voltage supplies
409 Ultraprecise instrumentation amplifier makes robust thermocouple interface
410 16-bit SO-8 DAC has 1LSB (max) INL and DNL over industrial temperature range
411 Gain trimming in instrumentation amplifier-based systems
412 Signal conditioning for platinum temperature transducers
413 Designing with a new family of instrumental amplifiers
PART 3 : Signal Conditioning
Section 1 : Operational Amplifier Design Techniques
414 High voltage CMOS amplifier enables high impedance sensing with a single IC
415 Matched resistor networks for precision amplifier applications
416 Using a differential I/O amplifier in single-ended applications
417 Single-ended to differential amplifier design tips
418 Current sense amp inputs work from −0.3V to 44V independent of supply
419 Tiny amplifiers drive heavy capacitive loads at speed
420 Micropower op amps work down to 1.8V total supply, guaranteed over temperature
421 Low noise amplifiers for small and large area photodiodes
422 Op amp selection guide for optimum noise performance
423 Easy-to-use differential amplifiers simplify balanced signal designs
424 Dual 25μV micropower op amp fits in 3mm × 3mm package
425 100MHz op amp features low noise rail-to-rail performance while consuming only 2.5mA
426 High performance op amps deliver precision waveform synthesis
427 Power op amp provides on-the-fly adjustable current limit for flexibility and load protection in high current applications
428 Fast and accurate 80MHz amplifier draws only 2mA
429 SOT-23 superbeta op amp saves board space in precision applications
430 325MHz low noise rail-to-rail SOT-23 op amp saves board space
431 Fast op amps operate rail-to-rail on 2.7V
432 Rail-to-rail amplifiers operate on 2.7V with 20μV offset
433 Single resistor sets the gain of the best instrumentation amplifier
434 Maximize dynamic range with micropower rail-to-rail op amp
435 1μA op amp permits precision portable circuitry
436 Low power, fast op amps have low distortion
437 Operational amplifier selection guide for optimum noise performance
438 Micropower dual and quad JFET op amps feature pA input bias currents and C-Load drive capability
439 Fast current feedback amplifiers tame low impedance loads
440 C-Load op amps conquer instabilities
441 Applications of a rail-to-rail amplifier
442 Source resistance-induced distortion in op amps
443 C-Load op amps tame instabilities
444 A broadband random noise generator
445 Peak detectors gain in speed and performance
446 3V operation of linear technology op amps
447 High frequency amplifier evaluation board
448 Current feedback amplifier “dos and don’ts”
449 Improved JFET op amp macromodel slews asymmetrically
450 Chopper vs bipolar op amps—an unbiased comparison
451 Ultralow noise op amp combines chopper and bipolar op amps
452 A SPICE op amp macromodel
453 A single amplifier, precision high voltage instrument amp
454 Micropower, single supply applications: (1) a self-biased, buffered reference (2) megaohm input impedance difference amplifier
455 Noise calculations1 in op amp circuits
456 An op amp SPICE macromodel
457 Operational amplifier selection guide for optimum noise performance
Section 2 : Special Function Amplifier Design
458 Ultraprecise current sense amplifier dramatically enhances efficiency and dynamic range
459 Dual current sense amplifiers simplify H-bridge load monitoring
460 Precise gain without external resistors
461 Sense milliamps to kiloamps and digitize to 12 bits
462 Op amp, comparator and reference IC provide micropower monitoring capability
Section 3 : Voltage Reference Design
463 Versatile micropower voltage reference provides resistor programmable output from 0.4V to 18V
464 Don’t be fooled by voltage reference long-term drift and hysteresis
465 Voltage references are smaller and more precise
Section 4 : Filter Design
466 A precision active filter block with repeatable performance to 10MHz
467 High frequency active anti-aliasing filters
468 Design low noise differential circuits using a dual amplifier building block
469 A digitally tuned anti-aliasing/reconstruction filter simplifies high performance DSP design
470 Replace discrete lowpass filters with zero design effort, two item BoM and no surprises
471 Free FilterCAD 3.0 software designs filters quickly and easily
472 SOT-23 micropower, rail-to-rail op amps operate with inputs above the positive supply
473 Get 100dB stopband attenuation with universal filter family
474 Tiny 1MHz lowpass filter uses no inductors
475 A family of 8th order monolithic filters in an SO-8 package
476 A 1mV offset, clock-tunable, monolithic 5-pole lowpass filter
477 High dynamic range bandpass filters for communications
478 Switched-capacitor lowpass filters for anti-aliasing applications
479 Chopper amplifiers complement a DC accurate lowpass filter
480 DC accurate filter eases PLL design
Section 5 : Comparator Design Techniques
481 Rail-to-rail I/O and 2.4V operation allow ultrafast comparators to be used on low voltage supplies
482 A seven nanosecond comparator for single supply operation
483 Comparators feature micropower operation under all conditions
484 Ultralow power comparators include reference
Section 6 : System Timing Design
485 Using a low power SOT-23 oscillator as a VCO
486 SOT-23 1kHz to 30MHz oscillator with single resistor frequency set
Section 7 : RMS to DC Conversion
487 Precision LVDT signal conditioning using direct RMS to DC conversion
488 An autoranging true RMS converter
489 RMS to DC conversion just got easy
PART 4 : Wireless, RF & Communications Design
490 High input IP3 mixer enables robust VHF receivers
491 A robust 10MHz reference clock input protection circuit and distributor for RF systems
492 A low power, direct-to-digital IF receiver with variable gain
493 Fast time division duplex (TDD) transmission using an upconverting mixer with a high side switch
494 Precision, matched, baseband filter ICs outperform discrete implementations
495 A complete compact APD bias solution for a 10Gbits/s GPON system
496 Signal chain noise analysis for RF-to-digital receivers
497 Programmable baseband filter for software-defined UHF RFID readers
498 High linearity components simplify direct conversion receiver designs
499 Baseband circuits for an RFID receiver
500 WCDMA ACPR and AltCPR measurements
501 Low distortion, low noise differential amplifier drives high speed ADCs in demanding communications transceivers
502 Wideband RF ICs for power detection and control
503 Fiber optic communication systems benefit from tiny, low noise avalanche photodiode bias supply
504 ADSL modems that yield long reach and fast data rates
505 A low power, high output current dual CFA makes xDSL line driving clean and easy
506 A low cost 4Mbps IrDA receiver in MS8 and SO-8 packages
507 Telephone ring-tone generation