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ADC12020: ADC12020

Part Number: ADC12020

What is the best way to read the ADC12020 adc with a micrcontroller?Do you have any code avaiable to read external adc?

  • Hi Tahir
    I'm checking to see if we have anything. Given this is a fairly old device I'm not confident I'll find anything.
    I'll respond with the information I have found tomorrow.
    Best regards,
    Jim B
  • Hi Tahir

    I haven't found any specific code for data capture from this ADC into a microcontroller.

    The task is fairly straightforward. Refer to the ADC12020 datasheet. Specifically the AC ELECTRICAL CHARACTERISTICS table on page 8 and the Timing Diagram on page 10.

    The recommended approach would be to connect a copy of the ADC12020 input CLK signal to one of the micro-controller inputs. The micro-controller should read the 12 bit data input port every time the CLK signal transitions from High to Low. To work at high speed this will need to be either a dedicated hardware read request function, or an interrupt input.

    The maximum supported sample rate will depend on the capabilities of the micro-controller being used.

    The ADC CLK signal should be provided by a low jitter clock source at the desired sampling frequency.

    Best regards,

    Jim B