• AD7730 VBIAS Pin

    Hello,

    I have a question about VBIAS pin of AD7730. 

    According to the datasheet of AD7730, VBIAS pin is recommended that the user does not connect anything to this pin. On the other hand, VBIAS pin is connected to capacitor on the evaluation board of AD7730…

  • AD7730:Calibrate load cell using AD7730

    Hello,

        I am working on AD7730 (ADC) ic which is interface with controller to read load cell data. I just want to calibrate load cell. I have epoch load cell which has 2mV/V sensitivity and supply voltage is 5 V. The output voltage of load cell range…

  • AD7730

    Hello All,

    I have spent the last month trying to get the AD7730 to work but have not gotten any data or response out of this device.  Following is a check list of what I have done so far,

    1. Hooked up 4.91MHz crystal oscillator with proper capacitor…

  • AD7730: FAQs

    Q 

    I have to realize an A/D board with four ADCs (AD7730). The input
    signals are in 0-10 mV range, and I need at least 14 bits of resolution
    or greater. I have built an evaluation board to test converters'
    performance, but I am not satisfied. I…

  • AD7730 Replacement - AD7195

    Q 

    What part would you recommend in place of the AD7730?

     

    A 

    There is no direct replacement, but the AD7195 could be used in place of the
    AD7730. It supports ac and dc excitation. The AD7195 is lower noise and lower
    current than the AD7730.

  • AD7730: Load cell

    Q 

    We are currently researching the subject of weighing using strain gauges and
    the AD7730 ("almost all in one") seems to be quite suitable for that job.
    Our question is: Since a 10V excitation seems popular in the market for this
    application…

  • AD7730: ESD protection

    Q 

    We are currently using AD7730 in our weighing indicators.
    The load cell input is connected to the AD7730 inputs with an EMI filter
    (muRata DSS710), a 330 Ohm serie resistor and a 470 pF cap to GND.
    Now we are in the process of re-engineering some…

  • AD7730: Evaluation board

    Q 

    1. Customer need info how to connect D-SUB 9 pin connector- to com or to LP
    connector
    2. If is writing data to Program M.Register very often is error-read from AD7730
    3. Supply voltages RVDD and AVDD are  short connected, as well Load cell 350

    …

  • AD7730: Maximum ratings

    Q 

    I have an AD7730BN part connected to a PC printer port (for develop only)
    trough a 1K series resistor in SCLK,DIN,DOUT,CS lines.  I saw that if I
    switch-off the AD7730BN power supply I can't start conversion commands but I
    can read/write to…

  • AD7730

    Hi Everybody,

    A little bit confuse with the results of the AD7330 in Non Chop Mode at SF=512. As indicate in the papers the Output Rate is equal to ( Mclk/16)*(1/SF), so with SF= 2048 the Output Rate is 150 Hz and SF=512 is 600Hz. That means with lower…