spectrum
Member
opamp, voltage subtraction then amplify
hello all,
i was looking for an op.amp scheme to subtract and amplify. I'm not asking for a complete circuit. I'm just looking for suggestions, for example what op.amp configuration i have to use, and so on.
As input i have a 125Khz, 200Vpp signal. It can vary sometime from 200 to 199V.
I need to convert this variation into 0-> 1V variation, with a subtracion, then i would like to have the variation amplified as 0-> 5V.
Actually i have available a TLC272 powered 0 and 5 V.
Thanks , angelo
hello all,
i was looking for an op.amp scheme to subtract and amplify. I'm not asking for a complete circuit. I'm just looking for suggestions, for example what op.amp configuration i have to use, and so on.
As input i have a 125Khz, 200Vpp signal. It can vary sometime from 200 to 199V.
I need to convert this variation into 0-> 1V variation, with a subtracion, then i would like to have the variation amplified as 0-> 5V.
Actually i have available a TLC272 powered 0 and 5 V.
Thanks , angelo
Last edited: