• AD7770

    Hi ,

    In our design We are using the  8 channel AD7770.  In our  Design  we need to switch the input to  the channel after each sample read. My doubt is how to stop/start the ADC acquistion.  Need to control the Drdy generation. Could you please provide the…

  • AD7770 Control

    HI ,

    In my application I need to switch the inputs  to the AD7770  after each conversion. During switching of the the input , AD7770 should be in idle state .Could you please  help me , which pins I  need to use to make AD7770 in idle state.

  • RE: AD7770-Working query

    Hi Abishek,

    VCM is an analog output, outputs a voltage at mid supply rails. If you are using dual supplies, VCM output would be around 0V, but do not tie to ground anyway.

    Note the PGA is differential, so you'll be converting the differential voltage…

  • RE: AD7770-Query

    Hi luis

    KIndly reply. 

    Kindly conisder this as urgent. For to sense Positive and negative range how will be the final connection of AD7770, corresponding adc range and software configuration. 

  • AD7770


         I have question regarding the analog channels of the AD7770: are the analog channels isolated in AD7770? Can they be coupled directly with signals coming from plcs? Isolation amplifiers required for AD7770 if necessary?

    Thank you!

  • RE: AD7770 Evaluation kit Programming

    Hi Monisha,

    The SDP-S is not compatible with the EVAL-AD7770FMCZ. I suggest using the SDP-H1 interface board which compatible with the EVAL-AD7770FMCZ. 



  • AD7770 questions.


    I have two questions about ad7770.

       1. how long time to start and finish the conversion?

           'sar' has timing data(conversion time) on the data sheet, but no 'delta-sigma'.

       2. When does 'MCLK Switch Error' occur?

          I am trying…

  • AD7770 ADC Error


    Kindly share the INL Error, Gain drift error and PSRR of AD7770 for analog input and voltage input

    Also What will be the adc error while using internal and external reference.? 

    Warm regards,

    Monisha OM

  • AD7770 PIN Tolerance

    Hi ,

    I am using AD7770 For high side sensing(24V). Is the analog pin is 24V tolerant ? Or else we need to use voltage divider which will effect on accuracy.

    Kindly reply me.

  • AD7770 Temperature Sensor

    I’m using an AD7770 as my main ADC on a custom board I’m designing. I’ve been playing with some prototypes and experimenting with the AD7770’s built-in temperature sensor. Using the code from ADI’s website I’m reading back some odd values for temperature…