- Amplifier used in the field of Instrumentation (acquiring physical signals, convert it to electrical signals by Transducer and this electrical signal is too weak; so need amplification).
Features:
1. Very high Gain
2. Very high CMRR
3. Very high Input Impedance
4. Very low Output Impedance
5. Very low dc offset
- Initially, a Differential Amplifier is taken..
- To attain all these features, a buffer is added to each input side of OpAmp 741.
Application:
