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Direct Digital Synthesis (DDS)
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Low Power RF Transceivers
MEMS Inertial Sensors
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Wide Band RF Transceivers
Wireless Sensor Networks Reference Library
AD822: Overvoltage issue
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0-20mA to isolated 0-5V
0.1Hz to 10Hz voltage noise of ADA4940-x
75..125C temp sensing with <0.5C accuracy (T-type thermocouple)
AD202: potting material, Cleaning possible - Pins internally connected
AD202JY: Input overvoltage protection
AD203: Reliabilty Report and Material Declaration for the AD203
AD210 MTTF (MTBF) Data
AD210 output adjustment circuit
AD210: low frequenc behavior of the AD210 - improve spec but not guaranteed after changed from TI TL082 to ADTL082
AD210: Output current limit
AD215: configuration of internal Bessel filter for output noise reduction possible?
AD215: do you have tests available against EN60335-1
AD215: more current through V+ ISO than 10mA specified in the datasheet? is this possible - while V- ISO has no load?
AD215BY MTBF of 70?C
ad22100: What is the drift for temperature precision over time
AD594 AD595 for N type thermocouple
AD594: ESD and EMI protection
AD594: Type T thermocouple
AD594: Voltage changews with supply voltage
AD59x Correct Thermocouple Grounding
AD59x Output Value not close to Expected Value
AD600: Distortion of the output waveform
AD603: Common mode input voltage
AD603: Maximum allowed input current
AD604 / AD605 : group delay and channel to channel phase variance
AD604 vs AD605
AD605 PGA in ultrasonic flow meter
AD605: Noise vs gain
AD608: FM detection
AD620 gain accuracy
AD620 in shunt resistor measurement with non-symmetrical supplies
AD620 input impedance when supplies are off
AD620: Decrease in CMRR
AD620B: Supply voltage
AD621 data sheet Rev.B, SOIC Package (dimension height) error
AD623 instrumentation amplifier PCB guarding techniques
AD623: Low output maximum
AD623: Output impedance
AD623: Power on/off time
AD623_error output under stress
AD626: fix Gain Calculation formula
AD628: High level ADC interface
AD630 lock in amp application for DC signal
AD632 - Error in the datasheet 12V Offset?
AD633 Vos drift over temperature
AD633: Asymmetric supplies
AD633: input coupling
AD633: Operates with unsymmetrical power supply
AD636_figure 17 input floating noise filtering
AD637: chip select function - All outputs High Impedance?
AD637: Pin layout
AD664BD-BIP_Junction-to-Ambient Thermal Resistance
ad734: General usage
AD734: power consumption calculation
AD736: Settling time
AD736: Signal range
AD736: Single supply configuration
AD8002: capacitive load drive capability
AD8005 - Usage Vs at +3V at own responsibility
AD8012 Model shows V Noise and I Noise Generation, but the AD8001AN does not have this?
AD8033 - Input voltage range
AD8036: Maximum clamping voltage Vh
AD8039 Minimum Output Swing
AD8041 :No connect pins
AD8041 Radiation tolerance test data.
AD8042: unstable when used as G=+2 buffer
AD8045 Feedback pin in Spice model not internally connected
AD8061 INPUNT TOLERANCE
AD8066 aging influences
AD8075: one AD8075 driving eight AD8075
AD8108_bandwidth and power consumption
AD8111_audio signal support
AD8112 - Is it possible to work with 3.3V Digital Supply?
AD8112_3: Are specs of the THD for the parts available at 1kHz? The datasheet only specifies THD at 20kHz
AD8113: GND pin and layout
AD8113: How should the NC pins be connected?
AD8128 EVB schematic
AD8128: Single Supply Usage
AD8129 AD8130: output impedance in power-down mode
AD8129: Eval Board - Outline Drawings missing
AD8129: Higher gain
AD8130: Power Dissipation Capacitance (Cpd) spec
AD8130: Usage as a Cable-Tab amplifier
AD8130: Will the AD8130 work with 5V single supply and gain of 2?
AD8131 and AD8138 phase tracking info
AD8131: CM input resistance
AD8131: drive specifications
AD8132: Best way to drive baseband inputs, improve LO leakage
AD8134: diode selection
AD8137: High offsert
AD8137: Terminate differential lines
AD8138 in wide band power amplifier: output balance error
AD8138: Diff-AMp Calculator issue
AD8138S: absolute maximum rating of supply voltage
AD8139 exposed pad "polarity"
AD8174: bandwidth limitation
AD817: O/P swing
AD8185: Overvoltage and input current when the device is powered off
AD8191: Crosstalk and isolation
AD8195: HDMI buffer and ESD protection
AD8207 DC monitor
AD8208, AD8418A: displaying increased offset voltage at very low Vsense voltages (below 1V VCM)
AD8210: Input bias current data (also over temperature)
AD8210: output voltage
AD8211: Do I need to add a clamp diode to the AD8211 like DS high side current sensor section said?
AD8211: max. Input Voltage at Pin 3 and 4
AD8214 500ns Overvoltage on IN+/IN-
AD8214: No capacitor between Vreg and Vs necessary
AD8217 zero-drift core
AD8218 errors due to input offset voltage and ground rail saturation voltage
AD8218 If "ENB" is tied to ground
AD822 Input Impedance - variation from typical spec and how to measure it?
AD822's Input Impedance - best way to measure and variation from typical spec?
AD8220: Vref voltage range
AD8221 Input Bias Current
AD8221 output impedance
AD8221: Driving capacitive loads
AD8221: Operating at a constant gain over a larger temperature range
AD8225: Offset specification
AD8227 output voltage limitations @ 0..100mV CM input
AD822: Input Overvoltage protection
AD822: Output voltage exceeds rails
AD822: Overvoltage issue
AD822: Phase reversal
ad822: Phase reversal (1)
AD823 schematics review
AD8230: input bias current over temperature
AD8231: CMRR measurements
AD8231: Output signals / not enough gain
AD8232 an AC-coupled or a DC-coupled solution
AD8232 to build a multi-lead diagnosis-quality ECG equipment
AD8237 - Advantages of indirect current feedback
AD8237 - Application example
AD8237 - Difference from other ADI instrumentation amplifier
AD8237 - Disadvantages of indirect current feedback
AD8237 - How do I take full advantage of AD8237 performance?
AD8237 - Pitfalls to avoid
AD8237 - Recommendation for driving an ADC
ad823: Rload influence of the GBP
AD823AR: ESD protection
AD825 die backside connection
AD825 die co-ordinate info detail request
AD825 die X-Y coordinate
AD8253 output short-circuit current definition
AD8253 spec under +-5V power supply
AD8295 spice model
AD829_theta JC spec
AD8302 evaluation board information
AD8302 Full phase detection
AD8302 spice model and gerbers for eval board
AD8302's Small Signal Envelope Bandwidth
AD8302: Hot to measure +/- 180deg phase
AD8302: Offsetting the phase output
AD8302: VPHS output changes with different input signal amplitude
AD8304: and its online tool use
AD8304: Measuring the resistance of textiles
AD8304: online tool intercept current.
AD8304: RFI issue
AD8305: Measuring low frequency signals
AD8306: Time constant required for the dc-offset
AD8307: What is the input impedance of AD8307?
AD8309: Limiter Amplifier
AD8309: Overshoot atfer rise time
AD8310 optical input power
ad8310: Level shifting the output
AD8314: Temperature compensating the AD8314
AD8318: control mode
AD8318: Using it at 8.5GHz
AD8319: frequency range
AD8321: supply voltage
AD8324 Evaluation board schematic
AD8328: input and output coupling
AD8330: Gain multiplication factor
AD8330: Signal Source
AD8333: Interfacing with differential amplifier
AD8334 EVB user guide
AD8336 Datasheet error in figure 77
AD8336: EVB header
AD8336_AN934 bandwidth change
AD8336_working at single 5V power supply
AD8337 Spice model on webpage is old Rev A model.
AD8338 in AGC design
AD8338 in audio applications
AD8338: RoHS exemption for LFCSP 16lds_3x3(cp-16-28) , error in materials declaration
AD8339 @ 250MHz
AD8339: channel to channel crosstalk
AD8397 input voltage ranges datasheet Rev A
AD8397ARDZ exposed paddle
AD8421 Common Design Pitfalls to Avoid
AD8421 Export Restrictions
AD8421 Military Version
AD8421 SOIC and MSOP Performance Differences
AD8421: Output impedance
AD8428: Total harmonic distortion (THD) specification
AD846 - open loop transimpedance can be reduced?
AD8476 - Driving ADCs
AD8476 - Driving signals across a cable
AD8476 - Guarantee for linear operating range for a given input
AD8476 - Harmonic distortion
AD8476 - RC filter after the AD8476
AD8476 - Reducing the gain
AD8476 - Single-ended to differential conversion
AD8476 - Stand-out performance specification
AD8495: Correct way to ground my thermocouple
AD8495: How to set up the setpoint controller
AD8495: Isolation for multi-channel thermocouple systems
AD8495: thermocouple interference
AD8500 output impedance
AD8515: Die size
AD8519: Can ADI provide partial spice model for testing out-of spec issues
AD8532_Isc and Iout test
AD8538 in a thermopile circuit
AD8541: Input current limit
AD8551 / AD8552 / AD8554: typo in datasheet Rev D figure 68
AD8551 at 2.5V supply (a bit outside of spec)
AD8551_figure 60 gain calculation
AD8555: Attenuate and level shift
AD8555: Usage with single ended sensors
AD855: long term stability of the offset voltage
AD8561: VOH VLO related questions
AD8564: I/P common mode range
AD8567: Connect the device paddle
AD8592 delay time and shut down time
AD8597/AD8599 CMRR MEASUREMENT
AD8597: Can I use SPICE model for AD8599 for simulating with AD8597?
AD8597: spice model
AD8602: Difference between AR and DR suffix
AD8606: Input voltages exceeding supply rails
AD8608: Input signal lower GND level violate absolute maximum ratings
AD8610: Short circuit current - driving the AD7667
AD8611: Jitter add to the signal
AD8622: macro model is for +/-15V supply only, Have you got a macro model for AD8622 for +/-2.5V supply voltage operation?
AD8628 minimum stable gain
AD8628: Signal sourcing
AD8629. High capacitive load
AD8638: Inpput range at +-5V supply
AD8638: Temperature variation
AD8643ACPZ: Offset voltage
AD8648: Current Noise Density
AD8655: Current noise density
AD8661: Input resistance
AD8662: Supply voltage
AD8666: Supply range
AD8674: Supply Voltage
AD8675 open null pins
AD8675 phase reserval
AD8677: CMRR PSRR charts (figure 28 and figure 29) differ from specification table
AD8682 input range for Vs=+/-13V
AD9101: Did an AD9101 as lead free exist?
ADA4000-2: What is the maximum safe input overload condition for this device?
ADA4004: Maximum Differential Input Voltage
ADA4077-2 Drop-In Replacement
ADA4077-2 ESD Ratings and Human Body Model Rating
ADA4077-2 Major Improvements
ADA4077-2 VOS differences between MSOP and SOIC Packages
ADA4096-2: Looking for an specific operational amplifier
ADA4096: ESD ratings
ADA4302-4: Maximum signal level
ADA4350: What is the current noise contribution in my TIA design?
ADA4411: Storage temperature
ADA4500-2 - Charge-pump noise affect
ADA4500-2 - Driving an ADC
ADA4500-2 - Output driven beyond one of the supply rails
ADA4500-2 - Resistors around the amplifier
ADA4528 Zero Drift Amplifier
ADA4528-x Common Applications
ADA4528-x use in Low Frequency Sensor Sensor Singal Conditioning Systems
ADA4528-x voltage noise density characteristic versus a regular operational amplifier
ADA4528-x voltage noise versus gain
ADA4637-1 and OP37 pin compatibility in SOIC
ADA4807:I keep hearing the term "dynamic power scaling" associated with this amplifier. What is dynamic power scaling and what are the benefits?
ADA4895 Distortion in dBc to %
ADA4897-1, ADA4897-2, ADA4896-2 Maximum Operating Voltage Range
ADA4897: power dissipation calculation
ADA4898-2: Differential mode input voltage for a powered device
ADA4898-2: Differential voltage for the unpowered ADA4898-2
ADA4898-2: Maximum voltage in an unpowered state
ADA4922-1: When soldering exposed pad, which plane potential should used?
ADA4927 Common Mode Gain
ADA4927 output current
ADA4927 Power Down Pin
ADA4930 input range at 5V supply
ADA4938-1: Can I leave PD pin unconnected?
ADA4940-1 datasheet REV B, error figure 61
ADA4941-1: DIS Pin and noise calculation
ADA4950-1: temp drift
ADA4960-1 : Is there PSRR data available?
ADCMP341 datasheet power supply current error
ADCMP343: Output response
ADCMP552: Hysteresis spread
ADCMP566, ADCMP567 evaluation board
ADCMP566, ADCMP567 evaluation board schematics
ADCMP566: No SPICE model available
ADCMP572 can drive the load of 256pF?
ADCMP573: Input Offset Voltage
ADCMP580/ADCMP581/ADCMP582 input nose model
ADCMP600, 601, 602, 608 Evalation Board schematic
ADCMP602 output "weakly" pulled up in shutdown mode
ADCMP609 pspice model
ADS620 Datasheet rev.H fig 45 error
Advantages of using the ADA4528-x compared to traditional chopper amplifiers
Alternatives to the AD829
Are ADI's Pb free parts annealed post tin plating?
Are there dual op amps (opamps) with power down / enable / disable function ?
benefit of the Fast Restore feature
Bipolar supply destroys AD8330 ?
Bond wire type used in ADCMP553BRM
Buffer op amp for AD8421 REF pin
Calculating input current of AD620 REF pin
Can I configure AD22151 to have output span of 0.5V to 4.5V for a 260-470 Gauss magnetic field span?
Can I DC couple the Ad8338?
Can I get a packaged fibre optic transimpedance amplifier from ADI (not in die form)?
Can I replace AD620 or AD8221 directly with AD8422 in my circuit?
Can I tie the NC pins of AD8041S to ground?
Can I use the ADA4350 as a switchable gain voltage feedback amplifier?
Can the AD8079 drive 100 meters of cable?
Can the AD8338 be driven single-ended?
Can you recommend a VGA suitable for DC applications (0-50MHz)?
choose the proper values for the external components for AD736
CMRR; output changing depending on change in common-mode input
common pitfalls to avoid while designing with AD8422?
controlling the BW pin on the AD8237
Counts and packages
Current Noise Beyond 1MHz
Current sense to digital output
DC isolation rating
Difference between the ADA4661-2 and ADA4666-2
Driver amplifier for AD9257
Eval board drawings, mechanical information; Input/ output connections
EVAL-PRAOPAMP: differential input to single ended-output opamp evaluation board
evaluation board and a spice model for the AD8422 to help me accelerate the design and verification process?
exact value of the differential output impedance of the ADA4938-1 or ADA4938-2
FAQ: How are VGAs adjusted?
FAQ: What is a VGA?
FAQ: What types of products need VGAs?
Filter Requirements for AD8232
Filter wizard evaluation board EVAL-FW-BPDF1 : Where is R5 (missing from silkscreen)?
Finding a solution for 30 meter UTP using AD8145 and AD8148.
First Document in Wiki
Getting rid of the chopping noise spectrum at 200KHz using the ADA4528-x
How do I design a TIA with different transimpedance gain paths with the ADA4350?
How do I evaluate the ADA4350?
How does the right leg drive technique work?
How many gain paths does the ADA4350 have?
Howto get back to speed with the filter design skills?
I'm operating the AD8338 at 5.0V, why is the reference still 1.5V?
If MAT02EH is still active
If the input difference voltage is over 250mV, can it damage the AD8211?
IN-AMP and DIFFAMP: CMRR Test Conditions
INAMP_CMRR in single power supply and dual power supplies
Information about REF43NBC Die part
Input resistance of AD8597/AD8599
Input resistance of unpowered operational amplifiers
Instrumentation amplifiers general: Measuring ground noise
Insultaion standard and isolation certification
Is the AD8422 intended for single-supply applications
Is there any special requirements for soldering the magnetic field sensor AD22151?
Is there any way of measuring magnetic fields of +/-8000 Gauss with the AD22151?
Issues using an asymmetrical supply voltage
Large Differential Input Voltage
LDC - AD8130/29 CMRR test circuit
Load current of amplifiers
Maintaining the precision performance of the ADA4528-x
Many of the examples I see of the ADA4807 seem to show it as a unity gain buffer. Can it be used with gain?
MAT14 - wrong figure 5 in Datasheet Rev A 10_2012
Materials declaration for AD7357BCPZ in the CP-18-1 package type is not available on ADI website?
Maximum operating pressure
Maximum voltage of isolated power output
Measuring magnetic field 10mT .. 0.5T
MIL-STD-883 revision differences
Noise model of ADA4899-1 for LTspice
Not achieving the expected programmable gain
Offset adjustment on AD215 isolated amplifier
OP07: ESD protection
OP1177 / OP2177 / OP4177 Input impedance
OP1177 current noise density and corner frequency
OP1177/OP2177/OP4177 addtional information on slew rate
OP16: Slew rate
OP184 offset null pins
OP184: Hot to implement a trim circuit
OP184: Input capacitance value
OP184: Offset nulling pins
OP184: Replacement with the AD820 and NULL Pin
op2177: Single supply operation
OP279 output headroom
OP27AZ for new design?
OP281: Supply voltage
OP284, OP296: Thermal Analysis Data
OP285: Input Common Mode Voltage Range
OP290: Drop in replacement
OP293 - open loop gain
OP293: Available as bare die
OP295GS: Tin/lead content of the leads
OP37: Reversal of supply voltage
OP400S: no power up sequence required
OP4177: Can I operate this device with a single supply?
OP484AM/QMLR mechanical drawings of the component that show the pin dimensions?
OP497 operation as Square Root Amp
OP90 used as inamp
OP90: Pin1 marking - missing dot - where is Pin 1
OP97: Overvoltage protection
Opamps general: current feedback CFB / voltage feedback VFB / input impedances
operational amplifier without internal bias-compensation
OPx177: Input capacitance value
Output drive current for ADA4661-2 and ADA4666-2
Output Impedance state when Powered Down
output short circuit
Output signal attenuated
Output swing - clipping
Part selection of a matched transistor pair for a log amp - current range 100pA to 10 mA
peak-to-peak output signal?
performance differences between the AD8422 SOIC and MSOP package options
Pin-to-pin compatible replacements
polarity/potential to connect to this exposed pad
Precautions for precision performance of the amplifier
Process info on OP279 & OP284
PSRR of AD8622
radiation effect on OP37
Re: AD8074 - Analog Devices: SR#: E12K100052
RE: FRESENIUS / ASTEEL : AD8557 (ANA) (SR#: 1200145)
RE: Tech support (SR#: 1201912)
Recommended resistor values to use with the ADA4528-x
REF01: Long term drift
Ref02: Radiation data for lower dosis / values - 5962R8551401VHA
REF193: Output oscillation
REF195, REF198: additional information not in the datasheet?
REF195: PIN layout
ROHS compliancy for those parts?
RTI error and RTO error and Calculation for error budget
SFP-RDK : ROSA, TOSA LED - source & schematic of SFP-RDK
Single Event Effects (SEE) testing on the PM139 or the OP484 devices
SPICE fundamanetals and basics
Spice model for MAT12:Audio,Dual-Matched npn transistor.
Tags List Amplifiers
The AD8232 is advertised as a single lead solution. What does it mean?
The AD8338 is consuming more than 3mA with very high, or very low gains
The AD8555's is not programmed correctly, after Master Fuse is blown?
The ADA4350 uses a 24 bit map. Can I use a 16 bit word load instead?
The ADA4807 is featured as a high speed performance amplifier. Can I use it in audio applications?
The advantage or special consideration of using dB output instead of the RMS output of AD637
The output range in my application is not as wide as the specification says. What is wrong?
The permittivity and the thickness of the AD8302's EVB.
The spec table states the capacitive load drive of the ADA4807-2 is 15pF. Can the ADA4807-2 drive larger capacitor loads? Will this heavy capacitive load make the amplifier unstable?
This part is listed as a rail to rail input and output amplifier. How close to the supply rails does the ADA4807 swing?
Use of AD22151G in compass application
Use of right leg drive amplifier
Using AD8552 to build a zero offset InAmp
What ADC can I pair with the ADA4350? Can I use the ADC driver in other gain configurations?
What advantages does the ADA4350 have over other traditional switchable gain TIAs or the fixed gain TIA+PGA approach?
What differentiates the AD8422 from previous products?
What is AD629 behaviour if max. CM voltage exceeded?
What is Analog Devices� AD8232?
What is the AD8624ARUZ Coefficient of Thermal Expansion (CTE) ?
What is the dynamic range of the ADA4350 when used as a TIA?
What is the input referred current noise for the AD8655/6?
What is the input voltage range of AD8556 when supplied with 4V (4.096V)?
What is the maximum magnetic field that AD22151 device will reliably detect?
What is the Open-Loop gain of the AD8532?
What makes AD8422 robust
What type of converters can the ADA4807 drive?
Where can I find a schematic and layout for the AD8105 Evaluation board?
Where can I find the AD8333 EVB user guide?
Where can I find the junction to case resistance for OP484S?
Which type of capacitor can be used for CAV?CF1?CF2 in the EVB of AD637
Why is it important to use the ADA4807 as a reference buffer?
Will the switches in the ADA4350 cause gain error and leakage issue?
With such low offset and offset drift, is the ADA4807 a zero drift or chopped input stage amplifier?
AD822: Overvoltage issue
The problem I have is as follows: I am having to apply a signal of
approximately +/-1 volt to the -ve input of one amplifier in an AD822, while
the device is unpowered. This event occurs only once, during our system
proving, and the signal lasts for about 2 milliseconds in each direction.
The supplies are decoupled by 22uF // 100nF, and these capacitors will
therefore charge via the parasitic diodes in the amplifier. My question is
will this damage the parasitic diodes? Having just had the second
conversation with you, I must stress this is a ONE OFF event which only
occurs during the explosive shock trial on our equipment. There is no
specific resistance in series, though wiring resistance will be about one
ohm. Please call again if I can give any more detail to help with answering
We do not want to put any resistance in series if we can avoid it, as the
AD822 is the front end of a low noise amplifier in a sonar system.
The AD822 allows the input range to extend below the negative supply. The
AD822 remains functional with input 0.2V below the negative supply and the
inputs can extend 20V below the negative supply without damage. However, the
AD822 provides no protection against input voltage which exceed the positive
supply by more than 0.2V.
The abs max ratings must be respected at all times even during transient
conditions. The +1V input excursion beyond the positive supply (0V when
unpowered) will cause permanent damage to the AD822. The damage may manifest as
a catastrophic failure or may be cumulative in nature showing up as a change in
input offset voltage, input bias current, and increase in noise, or an early
Assuming the positive excursion can be guaranteed to be 1V max, limiting the
input current to less than 5mA will prevent damage. Alternatively a Schottky
diode between the –in pin and the positive supply would be suitable protection.
Included below are some general notes on Overvoltage issue.
Any other semiconductor IC has basic ESD protection diodes which protect the
device from possible ESD hits due to handling and production. It is the
designers responsibility to provide external protection circuitry if the input
is likely to exceed the supplies at any time.
These ESD diodes can protect the IC from ESD hits up to typically 1.5kV. These
ESD protection diodes will act to clamp the voltage at any pin to within 0.4V
of the supplies. (So that's the problem solved right? No not quite.) ESD
protection diodes can carry quite high currents but only for a short period of
time so they can protect the IC from large pulses of short duration (the total
energy is still quite low). The maximum DC current which these protection
diodes can carry is 5mA. Therefore unless you can guarantee that the current
into in pin will me less then 5mA you need some kind of external protection.
External protection could be as simple as a series resistor to limit the
current into a pin. For example if the maximum overvoltage voltage applied to a
pin will be 5V you need to add a 1000Ohm series resistor in each digital line
to limit the current to <5mA. The higher you can make this series resistance
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