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PCM2900: A/D Converter with USB interface

seongtaek cho
Prodigy 120 points
Part Number: PCM2900

Hello,

I want to USB interface to send a specific voltage value to the PC.

The specific voltage is just DC Voltage.(0~3.3V range) 

So, I need to A/D and USB transceiver.

Among the single chip, I found the PCM2900C. 

Is it possible to do the above mentioned using the PCM2900C?

If it is impossible , Please let me know if there are any other alternatives or different ways.

  • 0
    TI__Guru 57800 points

    HI, Seongtaek,

    The PCM2900C is an Audio codec with USB interface, one of the features of the ADC in this device is an integrated High-Pass Filter used to remove the DC content of an audio input signal. This filter has a typical cutoff frequency of 3.744 Hz (48KHz sample rate), so it can't be used to measure DC voltage.

    I would recommend you to ask in the Precision Data Converters forum for the adequate ADC for your application.

    Best Regards,

      -Diego Meléndez López
       Audio Applications Engineer