Simple op amp low frequency amplifier.

101

01:48:50

I wonder how it will perform in real life. I've set the gain quite high to limit the bandwidth, it responds quite well from 80 hz to about 500 hz. At around 10 khz gain is about unity.

published 6 years ago

crake

6 years ago

Setting the gain quite high to limit bandwidth will depend on the op amp you choose in real life. You could lower the gain and instead put a capacitor in parallel with your feed back resistor to limit bandwidth. Then you wouldnt need to find the correct op amp that would have reduced bandwidth (not sure what bandwidth you have in mind) at gain of 1+470k/10k

johex

6 years ago

👍🏻👍🏻👍🏻

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