• 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…

  • ADA4940-1 single ended input

    Good day,

    I'm struggling to understand this FDA.

    I plan to have a resistor divider which will output 4V at full scale. I'll then feed this output to an AD8421, which will give a gain of 2 and level shift the output down so as to center the signal…

  • ADA4940-1 and AD7982 connection


    In ADC and driver simulation tool, there is only one option "INVERT" for ADA4940-1 connecting to AD7982. I don't want my ADC reading reverse. Can I cross connection, which means  ADA4940-1 Out+ connecting to AD7982 In-, while ADA4940-1…

  • What the difference between the ADA4940-1 and the ADA4941-1?

    What is the difference between the ADA4940-1 and the ADA4941-1? They are both ADC drivers, but what distinguishes the two parts from each other?

  • RE: ADA4940-1 Vocm MAX&MIN

    Hi Yuji,

    Thanks for the additional information. The 0.9V Vocm should work to ADA4940-1.

    Upon checking the AD9634, I could see some recommended ADC driver  that could provide excellent performance like ADA4937-1 and ADA4930-1. Have you been able to consider…

  • Terminating a Single-Ended Input for ADA4940-1


    I want to convert single - ended input to differential ended for driving ADC. I have gone through datasheet of ADA4940-1 in which calculations are given to terminate single ended input. For known source impedance I am using LTC6252 as buffer. But…

  • ADA4940-1 - Current Supply Drawn from Vocm pin?


    May i know based on the ADA4940-1 datasheet, how can we derive the current required for Vocm pin?

    Given that the input resistance stated is 250kohm, does it means that if inject 2.5V, the current drawn will be 10uA?

  • Question about power supply on ADA4940-1 (SOIC)

    On the datasheet for the ADA4940-1 ADC Driver, it is noted that there is a flexible power supply: 3V to 7V (LFCSP).  How does the SOIC package differ?  What is the maximum power supply for the SOIC? Would -Vs=0 +Vs=5V be a problem (SOIC)?