Idk because the problem is not spesificSome questions -
1) Amplifier to be AC or DC coupled ?
2) Input signal is it ground referenced AC or DC ?
3) Sensor its amplifying is it differential or single ended ? Data sheet link ?
4) Do you know what the CM environment is ? Do you need to reject commond mode voltage
at input ?
5) What is being done with amplifier output ? What is its load ?
Regards, Dana.
Idk because the problem is not spesificSo you want to build a line level pre-amplifier? There are many opamp based designs out there. Consider the impedance requirements also.
Idk because the problem is not spesificA gain of 3300 at 20 kHz is a gain-bandwidth product of 66 MHz. That's a lot. You will need at least two opamp circuits in series to achieve that.
Also, with a single 12 V power source (instead of +/-12 V sources) for the opamps, there *will* be a DC offset at the output pin of the last amplifier. Ideally it will be 1/2 the power rail, or 6 Vdc. What do you mean by "no offset"?
ak
Idk because the problem is not spesifichi
Type of filter?
There will be offset...but will it be significant? If so, the circuit will need to null the offset.
eT
by Duane Benson
by Duane Benson
by Jake Hertz