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Using pcm2900 Device as DC coupled AD-Converter

Peter Herrmann
Prodigy 10 points
Other Parts Discussed in Thread: PCM2900, PCM2900C

i want to use the pcm2900 for mesurement of very slow sigmals (<0,1Hz). Is inside the chip anything that makes a DC coupling impossible?

Thanks in advance

Peter 

  • 0
    TI__Guru* 95225 points
    Hi Peter,

    Welcome to E2E and thank you for your interest in our products!

    PCM2900C is designed for audio applications, in the range of 20 Hz to 20 kHz.
    Unfortunately your application is out of this range and PCM2900C won't operate as you need it because of its internal design.

    Best regards,
    Ivan Salazar
    Texas Instruments