silvermirror
Newbie level 6
I saw a circuit schematic, and I was confused...
In the circuit, there are two stage omp connect together, and they are the same omp. The first stage is a differential amplifier with the gain (10/43), and the second stage is a non-inverting amplifier with the gain (1/40)
I dont understand why there are two stages to do a differential amplifier work. The gain of first stage is almonst 1/4, and the second stage is 40. why not put the gain in the first stage?
In the circuit, there are two stage omp connect together, and they are the same omp. The first stage is a differential amplifier with the gain (10/43), and the second stage is a non-inverting amplifier with the gain (1/40)
I dont understand why there are two stages to do a differential amplifier work. The gain of first stage is almonst 1/4, and the second stage is 40. why not put the gain in the first stage?