Follow Us Rarely Asked Questions
ВЫПУСК 174, February 2020
Current Noise in FET Input Amps
вопрос: Why is my design noisier at higher frequencies?
Ответ
ВЫПУСК 173, January 2020
On Building Physically Accurate Analog Switch Macromodels
вопрос: Can I improve the LTspice® model of an analog switch in case my analog design contains switches and muxes?
Ответ
ВЫПУСК 172, December 2019
Manipulating MCU SPI Interface to Access a Nonstandard SPI ADC
вопрос: Can I access a nonstandard SPI interface with my MCU?
Ответ![RAQ Issue: 171]()
“If It Isn’t Broken, Don’t Fix It.” Adjusting the Gain of a Fixed-Gain Difference Amplifier
ВЫПУСК 171, November 2019
![RAQ Issue: 170]()
Inductor Current Measurement in Switched Power Supplies
ВЫПУСК 170, October 2019
![RAQ Issue: 169]()
A Simple Way to Measure Temperature Using One GPIO Digital Interface
ВЫПУСК 169, September 2019
![RAQ Issue: 168]()
Bootstrapping a Low Voltage Op Amp to Operate with High Voltage Signals and Supplies
ВЫПУСК 168, August 2019
![RAQ Issue: 167]()
When Smaller Is Better
ВЫПУСК 167, July 2019
![RAQ Issue: 166]()
How to Convert Light Intensity Into an Electrical Quantity
ВЫПУСК 166, June 2019
![RAQ Issue: 165]()
Discrete Difference Amplifier vs. an Integrated Solution
ВЫПУСК 165, May 2019
![RAQ Issue: 164]()
Guidelines for Placing the Inductor on a Switch Mode Power Supply Printed Circuit Board
ВЫПУСК 164, April 2019
![RAQ Issue: 163]()
SAR Converter with PGA Achieves Dynamic Range of 125 dB
ВЫПУСК 163, March 2019
![RAQ Issue: 162]()
Enablement of Batteryless Applications with Wireless Power
ВЫПУСК 162, February 2019
![RAQ Issue: 161]()
A New Spin on a Classic Architecture: Achieving a Fully Differential Output Using Single-Ended Instrumentation Amplifiers
ВЫПУСК 161, January 2019
![RAQ Issue: 160]()
Simple Circuit Measures Relative Intensity of Two Light Sources
ВЫПУСК 160, December 2018
![RAQ Issue: 159]()
When Grounds Are Separated
ВЫПУСК 159, November 2018
![RAQ Issue: 158]()
Driving a Unipolar Gate Driver in a Bipolar Way
ВЫПУСК 158, October 2018
![RAQ Issue: 157]()
Overvoltage Protection for RTD-Based Measurement Systems
ВЫПУСК 157, September 2018
![RAQ Issue: 156]()
Optimized Power Supply Measurement Setup
ВЫПУСК 156, August 2018
![RAQ Issue: 155]()
Home on the Range: Getting Multiple Gain Ranges With Instrumentation Amplifiers
ВЫПУСК 155, July 2018
![RAQ Issue: 154]()
Pocket-Size White Noise Generator for Quickly Testing Circuit Signal Response
ВЫПУСК 154, June 2018
![RAQ Issue: 153]()
High Speed ADC Power Supply Domains
ВЫПУСК 153, May 2018
![RAQ Issue: 152]()
Problem Solver: Multiplying Digital-to-Analog Converter
ВЫПУСК 152, April 2018
![RAQ Issue: 151]()
High-Side Current Sensing
ВЫПУСК 151, March 2018
![RAQ: Issue 150]()
Dynamic Use of the Disable Pin on an Amplifier
ВЫПУСК 150, February 2018
![RAQ: Issue 149]()
Intermediate Voltage to Increase Power Conversion Efficiency
ВЫПУСК 149, January 2018
![RAQ: Issue 148]()
Unique Gate Drive Applications Enable Rapidly Switching On/Off for Your High Power Amplifier
ВЫПУСК 148, December 2017
![RAQ: Issue 147]()
Synchronous Rectification on the Secondary Side
ВЫПУСК 147, November 2017
![raq-issue-146]()
Why Is My Processor Leaking Power? That Sounds Like an Open-Ended Question
ВЫПУСК 146, October 2017
![RAQ: Issue 145]()
A Low Power, Low Cost, Differential Input to a Single-Ended Output Amplifier
ВЫПУСК 145, September 2017
![RAQ: Issue 144]()
Accelerometer Tilt Measure Over Temperature and in the Presence of Vibration
ВЫПУСК 144, August 2017
![RAQ: Issue 143]()
Burned by Low Power? When Lower Current Consumption Can Get You Into Trouble
ВЫПУСК 143, July 2017
![RAQ: Issue 142]()
Orthogonal Perspectives
ВЫПУСК 142, June 2017
![RAQ: Issue 141]()
Sometimes, a Signal Needs to Ride the Rails
ВЫПУСК 141, May 2017
![RAQ: Issue 139]()
Presto! Multiply Your ADC’s Virtual Channel Count with DDC Magic
ВЫПУСК 140, April 2017
![RAQ:Issue 139]()
The Case of the Misguided Gyro
ВЫПУСК 139, March 2017
![RAQ: Issue 138]()
This Noise Will Keep You Up at Night
ВЫПУСК 138, February 2017
![RAQ: 137]()
Psychotic ADC?
ВЫПУСК 137, January 2017
![RAQ: Issue 136]()
Precision Current Outputs Are Easy to Make
ВЫПУСК 136, December 2016
![RAQ: Issue 135]()
Amplifier RF: Think Before you Choose!
ВЫПУСК 135, November 2016
![RAQ: Issue 134]()
Because Mr. Ohm Said So …
ВЫПУСК 134, October 2016
![RAQ: Issue 133]()
Common Sense for Current Sensing
ВЫПУСК 133, September 2016
![RAQ: Issue 132]()
Choosing a Precision Op Amp? Trust Goldilocks.
ВЫПУСК 132, August 2016
![RAQ: Issue 131]()
Going Full Tilt
ВЫПУСК 131, July 2016
![RAQ: Issue 130]()
Who Killed the Component?
ВЫПУСК 130, June 2016
![RAQ: Issue 129]()
Who Ate My dBs?
ВЫПУСК 129, May 2016
![RAQ: Issue 128]()
Citius, Altius, Fortius
ВЫПУСК 128, April 2016
![RAQ: Issue 127]()
Kalman or FIR Filter for My IMU?
ВЫПУСК 127, March 2016
![RAQ: Issue 126]()
When Second Sources Aren't
ВЫПУСК 126, February 2016
![RAQ: Issue 125]()
O CMRR, CMRR! Wherefore Art Thou CMRR?
ВЫПУСК 125, January 2016
![RAQ: Issue 124]()
Missing Half the Signal
ВЫПУСК 124, December 2015
![RAQ: Issue 123]()
Unused Pins
ВЫПУСК 123, November 2015
![RAQ: Issue 122]()
The Truth About Voltage Feedback Resistors
ВЫПУСК 122, October 2015
![RAQ: Issue 121]()
Unfiltered Analog
ВЫПУСК 121, September 2015
![RAQ: Issue 120]()
Voltage References Can Bite You, Too
ВЫПУСК 120, August 2015
![RAQ: Issue 119]()
The Ingenious Gentleman and the Mysterious Paddle
ВЫПУСК 119, July 2015
![RAQ: Issue 118]()
Mystery Spur Explained: Don't Blame the DDC!
ВЫПУСК 118, June 2015
![RAQ: Issue 117]()
Murphy Rules!
ВЫПУСК 117, May 2015
![RAQ: Issue 116]()
Muntzing can save cost, components, and even your sanity
ВЫПУСК 116, April 2015
![RAQ: Issue 115]()
Isn’t that gain specification a bit lopsided?
ВЫПУСК 115, March 2015
![RAQ: Issue 114]()
Choosing Voltage References
ВЫПУСК 114, February 2015
![RAQ: Issue 113]()
Don’t Get Caught Speeding
ВЫПУСК 113, January 2015
![RAQ: Issue 112]()
Exposed Paddles and Downbonds Improve Performance and Reduce Pin Count
ВЫПУСК 112, December 2014
![RAQ: Issue 111]()
Choosing Analog ICs
ВЫПУСК 111, November 2014
![RAQ: Issue 110]()
I Grew Up in the 80s and Survived!
ВЫПУСК 110, October 2014
![RAQ: Issue 109]()
ADCs for High Dynamic Range – Successive-Approximation or Sigma-Delta?
ВЫПУСК 109, September 2014
![RAQ: Issue 108]()
LEDs are Photodiodes Too
ВЫПУСК 108, August 2014
![RAQ: Issue 107]()
The Diamond Plot
ВЫПУСК 107, July 2014
![RAQ: Issue 106]()
Overranged Converter Recovers Quickly
ВЫПУСК 106, June 2014
![RAQ: Issue 105]()
Discretion is the better part…
ВЫПУСК 105, May 2014
![RAQ: Issue 104]()
Looking for Trouble in All the Wrong Places
ВЫПУСК 104, April 2014
![RAQ: Issue 103]()
Programmable ADC Input Range Provides System Benefits
ВЫПУСК 103, March 2014
![RAQ: Issue 102]()
Defying Scrooge
ВЫПУСК 102, February 2014
![RAQ: Issue 101]()
Bits Per Second Make My Head Hertz
ВЫПУСК 101, January 2014
![RAQ: Issue 100]()
RAQs: 100 Issues and Counting
ВЫПУСК 100, December 2013
![RAQ: Issue 99]()
Overrange Flag Indicates Data Validity
ВЫПУСК 99, November 2013
![RAQ: Issue 98]()
Design Tools and Support Communities Make Analog Fun, not Fearful
ВЫПУСК 98, October 2013
![RAQ: Issue 97]()
EngineerZone Makes Getting Answers a Breeze
ВЫПУСК 97, September 2013
![RAQ: Issue 96]()
Soft Clipping vs. Hard Clipping
ВЫПУСК 96, August 2013
![RAQ: Issue 95]()
Do-it-Yourself ASICs
ВЫПУСК 95, July 2013
![RAQ: Issue 94]()
Crystal Radio Sets and Op Amps—Both Can Detect RF Signals
ВЫПУСК 94, June 2013
![RAQ: Issue 93]()
Input Magic—Differential Signals Allow Input Swing to Exceed Supply Voltage
ВЫПУСК 93, May 2013
![RAQ: Issue 92]()
Multipliers and Modulators
ВЫПУСК 92, April 2013
![RAQ: Issue 91]()
Noise Gain vs. Signal Gain
ВЫПУСК 91, March 2013
![RAQ: Issue 90]()
Resolution vs. ENOB – Still Hazy After All These Years
ВЫПУСК 90, February 2013
![RAQ: Issue 89]()
Electronics is Fun
ВЫПУСК 89, January 2013
![RAQ: Issue 88]()
The Decline of Rounding—or How Significant is Significance?
ВЫПУСК 88, December 2012
![raq-issue-87]()
Apples and Oranges—Correlating Specifications Requires Common Test Conditions
ВЫПУСК 87, November 2012
![raq-issue-86]()
Current Transformers—and Vacuum Cleaners
ВЫПУСК 86, October 2012
![raq-issue-85]()
Great Expectations Come From Basic Understandings
ВЫПУСК 85, September 2012
![raq-issue-84]()
Driving Miss ADC
ВЫПУСК 84, August 2012
![raq-issue-83]()
Dual Op Amps and Double Agents
ВЫПУСК 83, July 2012
![raq-issue-82]()
Transformers: They’re Not All Boat Anchors
ВЫПУСК 82, June 2012
![raq-issue-81]()
Switching Bits
ВЫПУСК 81, May 2012
![raq-issue-80]()
The Electromotive Force and Op Amps
ВЫПУСК 80, April 2012
![RAQ: Issue 79]()
Nobody is Perfect – Not Even an Engineer!
ВЫПУСК 79, March 2012
![RAQ: Issue 78]()
Considerations on High-Speed Converter PCB Design, Part 4: Plane Coupling
ВЫПУСК 78, February 2012
![RAQ: Issue 77]()
Beware of big claims and large numbers.
ВЫПУСК 77, January 2012
![RAQ: Issue 76]()
In and Out – or – Why Have a Capacitor?
ВЫПУСК 76, December 2011
![RAQ: Issue 75]()
Crosstalkin’ Converters
ВЫПУСК 75, November 2011
![RAQ: Issue 74]()
Rotary Potentiometers: There Must Be a Better Option
ВЫПУСК 74, October 2011
![RAQ: Issue 73]()
The Benefits of Ancient Logic
ВЫПУСК 73, September 2011
![RAQ: Issue 72]()
Balancing Phase in High-Speed Converters
ВЫПУСК 72, August 2011
![RAQ: Issue 71]()
Looking for savings in all the wrong places
ВЫПУСК 71, July 2011
![RAQ: Issue 70]()
Do Something with that Unused Pin!
ВЫПУСК 70, June 2011
![RAQ: Issue 69]()
Considerations on High-Speed Converter PCB Design, Part 3: The E-Pad Low Down
ВЫПУСК 69, May 2011
![RAQ: Issue 68]()
A Foolish Question about Op Amps and Capacitors
ВЫПУСК 68, April 2011
![RAQ: Issue 67]()
Measuring the DC Parameters of Op Amps
ВЫПУСК 67, March 2011
![RAQ: Issue 66]()
Considerations on High-Speed Converter PCB Design, Part 2: Power and Ground Planes.
ВЫПУСК 66, February 2011
![RAQ: Issue 65]()
Op Amp Dedicated Feedback Pin Helps Achieve New Levels of Performance.
ВЫПУСК 65, January 2011
![RAQ: Issue 64]()
Oversampling and Undersampling
ВЫПУСК 64, December 2010
![RAQ: Issue 63]()
Considerations on High-Speed Converter PCB Design, Part 1: Power and Ground Planes.
ВЫПУСК 63, November 2010
![RAQ: Issue 62]()
Is amplifier headroom cramping your style?
ВЫПУСК 62, October 2010
![RAQ: Issue 61]()
Make do!
ВЫПУСК 61, September 2010
![RAQ: Issue 60]()
Watch for Those Multiple Clocking Edges!
ВЫПУСК 60, August 2010
![RAQ: Issue 59]()
Is Your Amplifier Disabled, or is it Merely Sleeping?
ВЫПУСК 59, July 2010
![RAQ: Issue 58]()
How to Avoid Burning Cakes
ВЫПУСК 58, June 2010
![RAQ: Issue 57]()
Keeping Your A/D Converter Clocks Jitter Free
ВЫПУСК 57, May 2010
![RAQ: Issue 56]()
Amplifier, attenuator or both?
ВЫПУСК 56, April 2010
![RAQ: Issue 55]()
Taming A/D Converter Power Supplies
ВЫПУСК 55, March 2010
![RAQ: Issue 54]()
Don’t be Mean - be Root Mean Square!
ВЫПУСК 54, February 2010
![RAQ: Issue 53]()
VFB or CFB that is the question!
ВЫПУСК 53, January 2010
![RAQ: Issue 52]()
Bring on the Converter Noise! – Part 2
ВЫПУСК 52, December 2009
![RAQ: Issue 51]()
Bring on the Converter Noise! – Part 1
ВЫПУСК 51, November 2009
![RAQ: Issue 50]()
What’s the big deal about ABSOLUTE MAXIMUM RATINGS?
ВЫПУСК 50, October 2009
![RAQ: Issue 49]()
What’s the (Converter) Frequency Kenneth?
ВЫПУСК 49, September 2009
![RAQ: Issue 48]()
Some Chips Have Moving Parts!
ВЫПУСК 48, August 2009
![RAQ: Issue 47]()
Which carries more weight, a datasheet or SPICE macromodel?
ВЫПУСК 47, July 2009
![RAQ: Issue 46]()
What shall we do with an unused op-amp?
ВЫПУСК 46, June 2009
![RAQ: Issue 45]()
Glass Diodes May See the Light — and Hum
ВЫПУСК 45, May 2009
![RAQ: Issue 44]()
Keeping Common Modes Common
ВЫПУСК 44, April 2009
![RAQ: Issue 43]()
Impedance Measuring Chip Offers Little Resistance to Applications
ВЫПУСК 43, March 2009
![RAQ: Issue 42]()
Are Your Filters Filtering?
ВЫПУСК 42, February 2009
![RAQ: Issue 41]()
What’s in Your Toolbox?
ВЫПУСК 41, January 2009
![RAQ: Issue 40]()
How Big Is It?
ВЫПУСК 40, December 2008
![RAQ: Issue 39]()
What The Heck Are Off-Amps?
ВЫПУСК 39, November 2008
![RAQ: Issue 38]()
Single Supply Amplifiers—They Sound Simple…are they?
ВЫПУСК 38, October 2008
![RAQ: Issue 37]()
Lock Down That Noise — Don’t Let It Escape
ВЫПУСК 37, September 2008
![RAQ: Issue 36]()
The Difference Between Different Differential Amplifiers
ВЫПУСК 36, August 2008
![RAQ: Issue 35]()
Stress Is Bad For You — and For Analog ICs
ВЫПУСК 35, July 2008
![RAQ: Issue 34]()
A Capaciticectomy? Sounds Awfully Painful!
ВЫПУСК 34, June 2008
![RAQ: Issue 33]()
Hysteresis Blocks Magic
ВЫПУСК 33, May 2008
![RAQ: Issue 32]()
Political Correctness and Datasheets
ВЫПУСК 32, April 2008
![RAQ: Issue 31]()
Too Hot or Too Cold May Be Just Right*
ВЫПУСК 31, March 2008
![RAQ: Issue 30]()
Capacitive Sensors: Rugged Enough for the Real World?
ВЫПУСК 30, February 2008
![RAQ: Issue 29]()
Half Full or Half Empty? Thoughts on Capacity.
ВЫПУСК 29, January 2008
![RAQ: Issue 28]()
What's Your Amplifier's Febricity Due to Electricity?
ВЫПУСК 28, December 2007
![RAQ: Issue 27]()
Resistors Have Hidden Depths
ВЫПУСК 27, November 2007
![RAQ: Issue 26]()
Op-Amp Noise can be Deafening Too
ВЫПУСК 26, October 2007
![RAQ: Issue 25]()
Resistor Noise can be Deafening, and Hard to Reduce
ВЫПУСК 25, September 2007
![RAQ: Issue 24]()
Are leaky amps sinking your design?
ВЫПУСК 24, August 2007
![RAQ: Issue 23]()
Should you butcher your circuit or your test gear?
ВЫПУСК 23, June 2007
![RAQ: Issue 22]()
Things (animals and ADCs) are not always what they seem
ВЫПУСК 22, May 2007
![RAQ: Issue 21]()
Breadboarding With Surface Mount ICs
ВЫПУСК 21, April 2007
![RAQ: Issue 20]()
Igor, pass me some supply sequencers!
ВЫПУСК 20, March 2007
![RAQ: Issue 19]()
Observing Maximum Ratings or How to Avoid Forecasts of Doom
ВЫПУСК 19, February 2007
![RAQ: Issue 18]()
Just How Accurate was William Tell, Anyway?
ВЫПУСК 18, January 2007
![RAQ: Issue 17]()
More Chips are Better than One (or the Benefits of Belgian Food)
ВЫПУСК 17, December 2006
![RAQ: Issue 16]()
Replacing Optocouplers with Digital Isolators
ВЫПУСК 16, November 2006
![RAQ: Issue 15]()
How to Age Gracefully and Avoid Sudden Death
ВЫПУСК 15, October 2006
![RAQ: Issue 14]()
Why Good Engineers Use the Best Components
ВЫПУСК 14, September 2006
![RAQ: Issue 13]()
Sigma Delta Converters are Not Really Hard to Understand
ВЫПУСК 13, July 2006
![RAQ: Issue 12]()
How Not to Design Active Filters
ВЫПУСК 12, June 2006
![RAQ: Issue 11]()
Comparators & Op Amps—May They Never Meet
ВЫПУСК 11, May 2006
![RAQ: Issue 10]()
Digital Processing Does Not Always Rule
ВЫПУСК 10, April 2006
![RAQ: Issue 9]()
Grounding Converters
ВЫПУСК 9, March 2006
![RAQ: Issue 8]()
Happy Groundhog Day!
ВЫПУСК 8, February 2006
![RAQ: Issue 7]()
It’s easy to drive an EE to drink—but what drives one to poetry?
ВЫПУСК 7, January 2006
![RAQ: Issue 6]()
Tick-Tock, Tick-Tock
ВЫПУСК 6, December 2005
![RAQ: Issue 5]()
Check the Bias Current
ВЫПУСК 5, November 2005
![RAQ: Issue 4]()
Caveat Emptor!
ВЫПУСК 4, October 2005
![RAQ: Issue 3]()
Isolating the Key Detail
ВЫПУСК 3, September 2005
![RAQ: Issue 2]()
Slow “starting” ADCs
ВЫПУСК 2, July 2005
![RAQ: Issue 1]()
Radio Frequency Interference (or how to get a free lunch at a very good restaurant)
ВЫПУСК 1, June 2005
English
简体中文
日本語
