• ADA4940-2 EPAD

    Hi ADA team,

    I'm using ADA4940-2 with ±VS = ±5V

    What is the best connection recommendation for EPAD in terms of thermal dissipation and guarantee safe work?

    Should I tied EPAD to GND or -Vs? In terms of heat absorption my PCB GND plane…

  • ADA4940-2: DISABLE pin


    I have a question about the DISABLE pin of ADA4940-2.

    I use the ADA4940 in +5V power supply.

    I connect the DISABLE pin to +5V.

    The DISABLE pin is connected with the pull-up internally.

    Additionally, may I connect the DISABLE pin with +5V on…

  • RE: ADA4940-2 noise issue

    Hi Tom,

    Do you have an RC low-pass filter between the ADA4940-2 and your ADC? It would be great if you could provide your circuit schematic.

    You can also try the free ADI DiffAmp Calculator or the NI Multisim Component Evaluator – Analog Devices Ed…

  • ADA4940-2 low pass filter


    I am designing ADA4940-2.

    I would like to add low pass filter for ADA4940-2

    Regarding to "DRIVING A CAPACITIVE LOAD" and figure 71, we can set the RC filter with series R and CL.

    I would like to set 400Hz as cut off frequency.


  • ADA4940-2


    I have a question about the ADA4940.

    When the power supply is not turned on
    How is the absolute maximum rating of VIN?



    Best Regards


  • Bill of Materials Missing for Evaluation Board of ADA4940-2

    Hey guys,

    We ordered the chip ADA4940-2 and its bare evaluation board UG-018 (http://www.analog.com/static/imported-files/user_guides/UG-018.pdf), but we have no clue where to find the bill of materials of that board. Could someone help tell where we…

  • RE: ADA4940

    If you do not add an operational amplifier in front of the ADA4940-1, the circuit will still behave normally, but the ADA4940-1 circuit will present a lower impedance to whatever is driving it, compared to an opamp buffer which could generally be configured…

  • 0.1Hz to 10Hz voltage noise of ADA4940-x

    Are there any information available for ADA4940-1/ADA4940-2 about the voltage
    noise density vs. frequency in the range 0.1 to 10Hz? If not, are there
    informations available about the 0.1Hz to 10Hz voltage noise (peak-peak)?


  • ADA4940-1 datasheet REV B, error figure 61

    On page 20 of the REV B datasheet  there is a diagram 'Figure 61'. Inside are
    part numbers, ADA4840-1 and ADA4940-2. I assume ADA4840-1 is an error?


    This is a typo error and the second ADA4840-1 will be removed from Figure…
  • ADA4940-1  configuration

    Dear sir,

    I am using  ADA4940-1  for Single Ended to Differential for my Application.

    I observed that ,when i gave  50mV to 1200mV as input and i got result  with less variations (uV variations). If i am trying to give >1200mV , i obeserved   big variation…