• AD7705: FAQs

    I'm trying to use an AD7705 with a 87LPC768 microcontroler with the signals DIN
    and DOUT wired together and pulled-up to 5V with a 10k resistor and I can't
    make it work even if it is the same schematic I found in your datasheet. Can
    you…

  • Ad7705

    Hi,

    1. Are i can use two ad7705 with only one external crystal(2.4576 mhz)?

    And how to connect?

    2.why I can't find 2.4576mhz crystal in smd package?

    And what is you offer?

    Best regards 

    Pouya

  • Ad7705

    Hi,

    1. Are i can use two ad7705 with only one external crystal(2.4576 mhz)?

    And how to connect?

    2.why I can't find 2.4576mhz crystal in smd package?

    And what is you offer?

    Best regards 

    Pouya

  • AD7705

    Good morning.
    I'm using AD7705 converter and it's very good for our design. I can manage two kind of measure. Exactly in single ended mode and the other one in differential mode. I put beforehand everything it's ok and I do what I want. But I'd like to…

  • AD7705 cascading MCLK

    Hello,

    in a current design, we will have 4 AD7705 on an pcb.
    Is it possible to cascade the clocking:
    Supply the first one on MCLK IN with an oscillator, and the second AD7705 is
    supplied on MCLK IN from MCLK OUT of the first one, and so on?

    Thank you…

  • AD7705: input impedance

    A customer asked a question about input impendence of sigma-delta ADC, AD7705.
    Do you had any data about input impendence while with buffer or no-buffer?

     

    The input impedance is several giga-ohms when the buffer is enabled. When the
    buffer is…

  • RE: AD7705 Why My dataOut is empty ?

    HI, 

    Looks like I misunderstood that again. So you are referring to SPI interface mode and not the ADC clock mode. hehe.. 

    Anyways, I believe the interface operates in SPI Mode 3 (CPOL=1, CPHA=1) wherein SCLK idles high, the falling edge of SCLK is the drive…

  • AD7705 thermocouple interface

    Hello,

    Working with AD7705 interfacing with a K-Type thermocouple. By looking at the given circuit in the datasheet I understood that  thermocouple is connected directly to the analog pins and no cold junction compensation is happening. I need to know…

  • AD7705: Values are jumping

    We are using AD7705 AD converter and we have noticed some inaccuracy after self
    calibration.

    These spikes in the picture (value goes down to 34500) are mark points when
    calibration is done (they are not values from ADC).

    From the picture we…

  • AD7705 DIFFERENTIAL INPUT RANGE

    Hello

    I'm working on a design where I will have a varying ac-signal of 1v. This signal is galvanically isolated from the rest of my system (or rather, my entire circuit is working on an isolated supply). My question relates to the differential input…