TLV8812: schematic review

user5349083

Part Number: TLV8812

Hi Team,

I'm using TLV8812. Please kindly help to review the schematic as blow, any comment will be appreciated. Thanks very much.

tgs5042_application note(en)_rev03.pdf

TGS5042.pdf

over 5 years ago

0 Chuck Sins over 5 years ago

TI__Mastermind 23395 points

This looks fundamentally good. I would probably add a resistor between the feedback node and C73 for amp 2a. This way you can create a low pass RC filter. Before gaining up he signal additionally in stage 2. I would also include an anti alias filter (RC) filter before driving your ADC. This is just good practice for ADCs.

Chuck

0 user5349083 over 5 years ago in reply to Chuck Sins

Prodigy 30 points

Hi Chuck,

Thanks a lot.

I have modified the Op Amp Circuit according to your comments(Green Square).

I also changed the parameters of the capacitor C31.

Is the value of resistor(R71) and capacitor(C73) appropriate?

Thank you.

0 Chuck Sins over 5 years ago in reply to user5349083

TI__Mastermind 23395 points

That looks good. You may want to increase the size of c73 and decrease c75 to optimize filtering. But this is something you can optimize in your prototype phase since you have the footprint in your circuit.

Chuck

0 user5349083 over 5 years ago in reply to Chuck Sins

Prodigy 30 points

Hi Chuck,

That's great news.

Thank you.

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TLV8812: schematic review