• ADA4622-4 / ADA4622-2 / ADA4622-1 FAQ

    Q1. What is the ADA4622-4 / ADA4622-2 / ADA4622-1?


    A1. The ADA4622-4 / ADA4622-2 / ADA4622-1 is the next generation of the AD824 / AD822 / AD820. It is a single supply, 30 V, 8 MHz, Low Bias Current, Single-Supply, RRO, Precision JFET Op Amp.


  • ADA4622-4 grade B

    Hi, I am interested in ADA4622-4 opamp grade B but this grade seems not to be available in the 4 opamp package. It is correct?

    Thank you in advance

  • ADA4622-4 LFCSP vs SOIC_N package electrical differences

    I was wondering what the electrical differences were between the LFCSP and SOIC_N packages on the ADA4622-4.  The size of the LFCSP package is elegant, but it also has an EPAD on it which should help with heat dissipation, right?  Are there any other measurable…

  • Why can't I use the "Analog Filter Wizard" with the ADA4622-4.

    I wanted to design a filter for the ADA4622-4 using the "Analog Filter Wizard", but the ADA4622-4 was "deprecated".

    Please tell me the reason.

    Also, ADA4622-1 / -2 is recommended, can I use ADA4622-1 / -2 instead of ADA4622-4.


  • ADA4622-1/ADA4622-2 Output Voltage

    I read Datasheet of ADA4622-1/ADA4622-2(Rev. B).

    I have a question.

    The ADA4622-1/ADA4622-2 are the next generation of the AD820 and the AD822 single-supply, rail-to-rail output (RRO),precision junction field effect transistors (JFET) input op amps…

  • ADA4622 Current Noise Density

    I read Datasheet of ADA4622-1/ADA4622-2/ADA4622-4(Rev. D).

    I have a question.

    IN ELECTRICAL CHARACTERISTICS, VSY = ±15 V  Current Noise Density is 0.8fA/√Hz. (Rev. D | Page 4 of 37)

    I See.


  • About EPAD of ADA4622-2


    I need some help.

    As below picture picked from the datasheet.


    The EPAD of 2ch Version(ADA4622-2)  is recommended to connect the EPAD to V+, but the note…

  • ADA4622 Stability

    Hi.  I'm using an ADA4622 opamp with +/-12v power for a 1Hz to 40kHz preamp feeding an Apex PA78 power amp (see schematic below).  I'm seeing large and quite frequent noise spikes at the preamp output, unless I have a small load capacitance (including…

  • RE: ADA4622-1 to replace TI OPA171 issue

    Hi PChen833,

    Apologies for the late response. Could you provide more information about this? For example how does the customer's setup look like, is the snip of the schematic above just a part of a larger schematic, is this part on the front end of the…

  • ADA4622-2

    Dear all, 

    I'm considering using  ADA4622-2 as an input buffer in a voltage follower configuration for a medical application. Op-amp will be powered in +/-5V and inputs will be connected to a patient through input resistors.   

    Is there known or foreseeable…