elisemark
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Hi all,
I have a simple circuit , where I take a signal and remove the DC offset with a trim pot prior to Amplifying signal through an active RC filter (TL081) . Now I can adjust the pot and get the signal close to 0 removing the offset but then after few sec the signal goes higher and higher until it reaches almost VCC and flattens out probably satturating the amplifier . Anyone has an idea why this is happening ?
I have a simple circuit , where I take a signal and remove the DC offset with a trim pot prior to Amplifying signal through an active RC filter (TL081) . Now I can adjust the pot and get the signal close to 0 removing the offset but then after few sec the signal goes higher and higher until it reaches almost VCC and flattens out probably satturating the amplifier . Anyone has an idea why this is happening ?
