PCM1804 Analog Input Impedance - Differential?

Richard Meidl

The data sheet lists the typical single-ended input impedance as 10 kμ. I have a couple of questions regarding this specification.

1) This is a differential part. So, what is the differential input impedance?

2) What units are kμ?

Thanks

over 13 years ago

0 Richard Meidl over 13 years ago

Intellectual 370 points

May I assume that the units should have been kΩ and not kμ? If so, wouldn't the differential impedance be the series combination of the two inputs and therefore be 20 kΩ typically?

thank you for your help with this question,

Rich

0 Don Dapkus over 13 years ago in reply to Richard Meidl

TI__Guru**** 189401 points

Hi, Richard,

I believe that you are correct on both points.

I will log this typo into our system to fix it when we update the d/s the next time.

-d2

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PCM1804 Analog Input Impedance - Differential?