• AD7091R-8 ADC conversion result

    Hello AD,

    I'm working on AD7091R-8 evaluation board.

    Currently I have enabled 3 channels out of 8.

    I'm using the channel sequencer for reading the conversion results.

    When I'm  reading the conversion result of the enabled channels,I'm getting…

  • RE: Do the input current of AD7091 Vin0 ... Vin7 ,and REF IN /REF OUT and ADC IN pin need to be constrained blow a vlue ?

    1. The absolute maximum on input current to any pin except supplies is +/-10mA(Please see page 7 of the AD7091R-8 data sheet)

    2. Please see page 8 of the data sheet for description of the functions of the ADCIN and MUXOUT pins

  • is there any simulation model for AD7091R ? I want to use a FPGA to connect to AD7091R to get data

    is there any simulation model for AD7091R ? I want to use a FPGA to connect to  AD7091R to get data

  • RE: AD7019R-5 vs AD7019R-4


    The digital interface for the AD7091R-5 is I2C vs SPI for the AD7091R-4.


  • RE: Conversion Delay between two channel reading and ADC sequence read

    Hi Arvind,

         The AD7091R-8 when in the channel sequencer mode, the conversion result of each channel has one conversion delay latency and the channel sequence start from the lowest channel to the highest channel. Figure 55, pp.36 of the datasheet shows…

  • RE: Faulty values being read on AD7091R-8

    Hi Jonathan,

    Thanks for your support.

    We found that the issue is related to pulse width of CONVST. After achieving 500ns Pulse of CONVST, we are able to sample at every 1 uS interval.

    Thank you,


  • AD7091R-8  Power-On initialization, CONVST reset not working


    I did send my question in this discussion:

    AD7091R-4 Malfunctioning 

    As we are having similar issue.  Basically initializing the ADC with 66 pulses of CONVST does not seem to work...

    I can provide all probing or logging if needed.

    Hope someone…

  • RE: AD7091r-8无法采集数据



  • no-OS reference driver for AD7091R-4 ADC


    I searched the git tree at GitHub - analogdevicesinc/no-OS: Software drivers for systems without OS for the no-OS driver for AD7091R-2/4/8 ADC and I couldn't find it there on any branch.  There is a driver called AD7091R, but it doesn't support…

  • RE: AD7997 kind of ADC that can sample multiple channels after getting a single command

    Hi Cornelius,

         The AD7997/98 I think would fit your requirement. You may also check the AD7291(8 channel) These uses I2C interface. There is need to configure the register to enable the channels that will be converted then reading the conversion result…