• 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.

     

  • RE: ADA4622-1/ADA4622-2 Output Voltage

    I see.

    Thank you very much Rob.

  • RE: Looking for OP AMP like ADA4622-2 but with lower temperature offset drift.

    Hi Zayouna,

    An alternative to ADA4622-2 could be the ADA4610-2 which has lower 1/f noise (0.45uApp), 16.3MHz GBWP, 25 V/us SR, 10^13 ohm input resistance. The "Vos TC" (offset drift) of ADA4610-2 (2uV/deg. C, B Grade) is better than ADA4622-2…

  • 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.

    IN ELECTRICAL CHARACTERISTICS, VSY = ±5 V  

  • ADA4622 Package Information in Specsheet

    In the Page 1 of the specsheet, the final paragraph reads:

    The ADA4622-1 is available in a 5-lead SOT-23 package and an 8-lead LFCSP package

    while in the Page 11 of the specsheet, the page shows:

    Figure 2 and Figure 3, showing the ADA4622-1 in the SOT…

  • RE: what is the ad8676 best voltage follower setup?

    hi Hary,

    in fact I will be mostly using it for DC measurements, ADA4622-2, ADA4610-2 seem to have large offset, ADA4000-2 even bigger.

    Regards,

    Mike

  • Input/output impedance when disabling the ADA4622-1

    I'm curious about the shutdown/disable feature of the ADA4622-1.

    What is the impedance looking into the ADA4622-1 at its inputs and output when the part is in shutdown?  I like the idea of a circuit like Figure 99 of the datasheet, but what extra load…

  • RE: AD8638 weird behaviour

    What about the ADA4622 ? This one does not seem to have the differential limiting input.

  • ADA4622: it is recommende to connect the epad to V+. But can it be connected to any other signal such as GND? Why V+ any specific reason to so?

    ADA4622: it is recommende to connect the epad to V+. But can it be connected to any other signal such as GND? Why V+ any specific reason for that?

  • RE: AD7768 analog input range in PIN mode

    FormerMember
    FormerMember

    Hi John,

    Firstly, I would say if you are using the ADA4622-2 that this amp may struggle to drive the AD7768-4 directly on it's own. Generally we would need to use an additional driver amplifier between it and the ADC to settle the input to the ADC due…