• Simple C example for AD7091R

    I need to do some prototyping with an AD7091R-4 ADC to verify some HW design choices.  I've been searching with minimal luck for an actual example in C of setting up and using the AD7091R over SPI.

    I thought I had found one via links on the analog…

  • RE: ad7091R

    EHILLEL820,

    You absolutely can read from channel 0 to channel 3 (1-4) in sequential order.   Assuming you are using the AD7091R-4, you can simply program the channel register (ADDR = 0x01) with code 0x000F to enable channels 0 to 3 for conversion.  

    If you…

  • 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

  • AD7091R

    Hi,

    By using external reference would it increase measurement accuracy ?

    If so, which reference IC is recommended ?

  • AD7091R-8

    Hello
    I'm trying to set up communication with AD7091R-8. In setup I send following SPI command: 0X0CFF, 0X08FF, 0XFFFF, 0XFFFF, 0X00FF. Then I periodically send 0X0020 and I'm trying to read channel 5. I'd like to read one channeland them sequential readings…

    • attachments.zip

  • AD7091R weirdness

    Hi,

    I have a AD7091R application which is outputting 'improperly justified data' at lack of a better description. The first bit shifted out doesn't appear to be the MSB, rather the results of a previous conversion - the 8th bit shifted out appears to…

  • AD7091R-8 Mux

    Hello

    Please let me know about Ron of multiplexer. in AD7091R-8.

    For example,  the datasheet of  AD7329 which the device is like AD7091R-8 ( Muxout -> ADC in) describes  below

      MUXOUT+ Capacitance (datasheet P. 6)

      Resistance including  on resistance…

  • AD7091R: FAQs

    Q 

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

     

    A 

    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

    …

  • AD7091R-5 I2C

    Hi

    I'm a DFAE in Japan. Our customer give us a question. There is a MOSFET inside SDA pin of AD7091R-5. On the other hand, is there NO MOSFET inside SCL pin of AD7091R-5? According to Table 5, we couldn't see Open-drain output about SCL as follows.…

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

    Hello,

    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…