• AD7091r

    Can the ADC inputs exceed the reference voltage or go below ground?


    The ADC inputs should not exceed the reference voltage or go below ground by
    more than 0.3V as this may result in the ADC being damaged. If this is a common condition then

  • BAD conversion results AD7091R without BUSY indicator


    I try to get my AD7091R on its eval board working.

    I have an MCU attached to CONVST / CS / CLK signals and I use an oscilloscope to monitor everything.

    I think there is something wrong with SDO output and my datasheet understanding. Some screenshot…

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  • AD7091R SPI question

    We are planning to use the AD7091R in a mobile low power distance measurement
    device. We need a data throughput of 1MSMP/S. My question is if it is possible
    to readout the data by SPI during a conversion. At the datasheets there are
    only examples…

  • Question about AD7091R-2 SDI Timing


    Assuming from the timing diagram tssdisclk and thsdisclk, SDI data seems to be taken into the registers on the rising edge of the SCLK. 

    Is the description (blue line) of SDI in the datasheet incorrect?



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

    Are there any plans for VHDL or Verilog behavioral models for this device in the near future?

  • AD7091R Conversion Result Change

    After powering up the device why does the conversion result change after
    approximately 60   samples have completed?


    After power-up ensure that the software reset as outlined in the data sheet is
    A software reset initializes the AD7091R…

  • Analog input voltage of AD7091R


    I confirmed below sentence. AD7091R has internal reference that 2.5V. In that case, Is it true my awareness that Input voltage depend on VREF.


    analog input signal never exceeds VREF or VDD by more than 300 mV


    Best regards