Hi all, I am new in this forum and find it quite helpful.
Here is my design of the amplifier:
Signal will come out from a photo diode with 300mV DC component and 60mVpp AC component.
I will use an opamp to amplify the signal from photo diode firstly.
Secondly, a capacitor will be used to block the DC part of the signal.
Thirdly, the AC part of the signal will go through a bandpass filter(1kHz-20kHz).
Fourthly, the signal will be amplified with another opamp.
Very high precision is needed(1uV/60mV), will the amplifier work?
Are matching networks needed? Opamps have good input/output impedance.
Really appreciated.
Richie
Here is my design of the amplifier:
Signal will come out from a photo diode with 300mV DC component and 60mVpp AC component.
I will use an opamp to amplify the signal from photo diode firstly.
Secondly, a capacitor will be used to block the DC part of the signal.
Thirdly, the AC part of the signal will go through a bandpass filter(1kHz-20kHz).
Fourthly, the signal will be amplified with another opamp.
Very high precision is needed(1uV/60mV), will the amplifier work?
Are matching networks needed? Opamps have good input/output impedance.
Really appreciated.
Richie