Because the inverting input is at virtual ground, the output of the inverting op amp is V OUT = −IR2 = −V IN R2/R1. Thus, the gain of the inverting op-amp circuit is −R2/R1.

This arrangement provides gain set by R1 and R2 with the associated formula, G = 1 + (R2/R1). In this issue’s SBE Certification Corner (page 14) we showed an op-amp in the classic inverting ...

(If this op amp were operated in a buffer configuration, it would have a phase margin of 43 degrees.) If the op amp were used in an inverting configuration with a gain of one, K would be 0.5 or -6dB ...

Before going into op amp compensation it is important to shed some light on two most basic configurations in the op amp; the non-inverting (Fig. 1.A) and the inverting (Fig 1.B). There is plenty of ...

2. In an inverting and single non-inverting input op-amp summer, R1-R3 interact to some extent (Equation 2). Equation 2 is still manageable: R1-R3 are interactive, but not terrible to deal with. 3.