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AD7606C-16 || Digital Data to Voltage Conversion

Category: Hardware
Product Number: AD7606C-16

Hi Team,

I am using AD7606C-16 ADC IC for my receiver system.  I want to validate the ADC-received samples to my scope waveform. I am doubting what should I consider the value of Full Scale Range in the calculation formula.

Please Note: I haven't made any configuration changes for the ADC IC. 

Conversion formula:

Voltage= (Digital Data)* Full Scale Range / ((2^16)-1)

In the Oscilloscope I am seeing Vpp (measured at P wrt N I/p of ADC) is ~3.0Vpp

I am attaching the Digital Data, Pls suggest are the samples Ok. What Should I consider the Full Scale Range for my calculation?
CONVST Freq: 108KHz
Input Frequency: 27KHz

Parents Reply
  • Hi Nathan, Lluis, Rehfi..

    We tried writing the registers with the below-required value.

    1. 0x03 - 88 (+/-5V differential range)
    2. 0x04 - 88 (+/-5V differential range)

    3. 0x05 - 88 (+/-5V differential range)

    4. 0x06 - 88 (+/-5V differential range)

    5. 0x07 - FF (setting high bandwidth)

    6. 0x00 - 00 (referred from previous posts to set back to AC mode).

    we are using a 96-clock cycle in total for writing the above data, but we observed the ADC is not coming out of register mode. & I am able to see the register data on DOUTA line(by probing)

    Any suggestion on this.