TSV912: SBOA262A Analog Engineers Circuit quesitons

Mike Gann

Part Number: TSV912

I'm trying to work through the example shown in the "Analog Engineers Circuit - Non-inverting op amp with inverting positive reference voltage", document SBOA262A.

Starting in step 3 on page 2, where does the 1MΩ come from?

Thanks for any feedback.

Mike

over 1 year ago

+1 Caro Walter over 1 year ago

TI__Genius 17487 points

Hey Mike,

Here is a quick whiteboard proof:

The circuit describes "the other two resistor values must be solved using a system of equations."

All the best,
Carolina

0 Mike Gann over 1 year ago in reply to Caro Walter

Prodigy 10 points

Hi Carolina -

Thanks for the white board picture. I hadn't worked all the way through it and the 1M looked like it popped up out of no where, but it is the 1K x 1k as you show.

Again, thanks for the help!

Mike

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TSV912: SBOA262A Analog Engineers Circuit quesitons