• RE: AD7172-2 channel sequencer


    Yes, you can have 4 channel in front of AIN0/AIN1 and another four in front of AIN2/AIN3. However, there are only 4 internal channels in AD7172-2, thus only 4 channels can be automatically sequenced. And the sequence will be from Channel 0 to Channel…

  • AD7172 sample rate question

    I'm a bit confused about the AD7172 sample rate in the datasheet. It says "The output data rates range from 1.25 SPS to 31.25 kSPS" and also says "has a maximum channel scan rate of 6.21 kSPS (161 µs) for fully settled data". I don't quite understand…


    When I change output data rates,need calibration ?

    Or only  be performed at  lower output data rates?

  • AD7172-2 eval software

    The eval software installs without error, but crashes on startup (see log below). Tried on W7 and W10, installing/running as admin.

    #Date: 17 Sep 2019 14:16:17
    #OSName: Windows 7 Enterprise Service Pack 1
    #OSVers: 6.1
    #OSBuild: 7601
    #AppName: AD717x…

  • AD7172-2 External Crystal

    I want to use an external crystal to generate the master clock.

    And I use  the CLKOUT signal be buffered with a CMOS buffer before being applied to the rest of the circuit.

    the CLKOUT signal be buffered with a CMOS buffer before being applied to the rest…

  • AD7172-2 Max Operating Temperature

    The data sheet lists max operating temp of 105C.  Is this part available with operating temp to 125C?

  • About AD7172-2 STATUS REGISTER

    By setting the DATA_STAT bit in the interface mode register,

    Is status register ahead of the data register or later?

    (Which is right,status register+data register or data register+status register?)

  • About AD7172-2 Input Impedance

    Hi, All.

    I want to know the input impedance at the time of buffer ON.

    For use with differential, it is good if you know the normal mode.

    Assumed to have rate is 500SPS.

    Best Regards,


  • AD7172-2 Precision Weigh Scale Issues

    I´m using AD7172-2 converter, with external amplifier, in bipolar mode input. The load cell is 30kg capacity and 2mV/V, and the excitation voltage is +5VDC (REF is +5VDC too to do ratiometric system). I attach the scheme.

    1- I have configured the…

  • AD7172-2 Sample rate not updating


    I have mounted an AD7172-2 on my board and trying to vary it's sample rate but I am not able to.

    AVDD1 = AVDD2=5V

    IOVDD = 5V

    ATMEGA164P Micro= 5V

    Using Single-Ended Channel

    AIN1 = + input

    AIN4= gnd

    Using Internal Oscillator

    Using AVDD1…