a very simple op amp circuit with some detail omitted If you ... Set the simulator so the – input (the inverting input) is at 0V and the noninverting input (+) is at 4V. The output should ...

The circuit of Figure 2 could also be built for DC use but would then need low-offset op-amps, especially in the last stage. (Omit C1, C2, and other I/O oddments, obviously.) Figure 1 showed the ...