I'm building a circuit that extract the DC component of an input signal, ,divide the DC component by 5, and finally add 2.5V it.
Here is the schematic of the circuit (the last op-amp is to invert the inverted signal):
As you can see, I've added a voltage-follower buffer between the low-pass filter and the voltage-divider sub-circuit, and another similar buffer between the voltage-divider sub-circuit and the rest of the circuit. Without those buffers, the result would be wrong.
I want to build the circuit on a breadboard using LM741 chip as op-amp. So, I was wondering if there another way to implement those buffers that uses less physical space on the breadboard?