Design Challenge The author was tasked with improving the performance of an evaluation board for the LMP7721 low-input-bias-current CMOS operational amplifier. The board needed to showcase the ...

These common op-amp circuits are useful for amplifying various analog signals. The ideal op amp model helps us understand how these circuits operate. For more detailed information on op amp circuits, ...

Keep in mind that op amps prefer balanced design, so consider a balanced op-amp design for your next linear circuit. Plato’s Gain Formula is Z F /Z I for balanced circuits.

Follower U2 provides the current required by bootstrapping circuit R3-R4-C9-C10. The input capacitance of U2 and R7 form a phase lag circuit within the bootstrap loop.