• AD7865 supply voltage

    Hi,

    The AD7865 is specified to operate from an AVDD supply of 5V +/-5%. What would happen to the sampled data if it is operated outside of these 5% limits?

    In a legacy design, the AVDD pins is connected via a simple RC low pass filter, R is 10 ohms…

  • AD7865: Multiple CONVST

    Is it possible to restart the con version with two consecutive /convst signals
    in direct requence (double function of signal necessary) ? The second pulse
    will follow the first directly (100ns pulse width )

     

    A conversion is triggered…
  • An issue about AD7865

    Dear Sir/Madam,

    I am using AD7865, and in the datasheet it shows that PIN H/s SEl:When this pin is at a Logic 0,the AD7865 conversion

    sequence selection is controlled via the SL1–SL4 input pins and runs off an internal clock.

    About it, i have some…

  • Input Impedance of AD7865-2

    Dear Sir, I'm using a AD7865-2, have some problem convertion results. There is a simple Low pass filter on the Vin of AD7865-2. But Resistor value is Zero  ohm, and Capacitor is 0.01uF. In this case, the conversion result is good. But in case of that…

  • DAC AD7836 and ADC AD7865

    Dear Madam / Sir,

    Kindly clarify the following points:

    1. AD7836 requires 5-V for logic circuit and +/- 15-V and Vref+ and Vref- for the analog section.

    Is there any powering sequence for these voltages or can we power up simultaneously.

    Of course…

  • 2 Questions for your AD7865-1

    Dear Sir/Madam,

    Our customer asked the following 2 questions to us.

    As for your AD7865-1 ADC,

    Q-1)

    Customer put -10V DC between (VinxA+VinxB) to AGND for a few seconds.

    So in this case, your AD7865-1 is broken the over voltage, correct?

    Your ABS…

  • AD7865的内部时钟问题

    在AD7865的DATASHEET的引脚 /H  / S SEL功能说明中有:When this pin is at a Logic 0,the AD7865 conversion

    sequence selection is controlled via the SL1–SL4 input pins and runs off an internal clock.

    这句话最后是使用内部时钟还是关掉内部时钟?待解答。

  • AD7836 DAC driven by FPGA. FPGA powered AD7836 not yet powered. Will it damage AD7836

    1. We have a system where AD7836 DAC is driven by an FPGA. FPGA provides Data and Commands to AD7836.

    2. If FPGA is powered and provides Data and Control but AD7836 is not powered, will it cause damage to AD7836

    3. In the same system we have ADC AD7865…

  • RE: AD7685: SDO

    Thank you for your reply.

    I have another one question.

     

    I use AD7865, and mode is CS mode 3-Wire with busy.

    The power supply is  turn on to AD7685 first.

    At this time, when CNV is low, SDO is low.

    I want to do the default of SDO to high impedance…