Hahn (Windrichtungsanzeige mit Reedschaltern und LED-Kette, UAA170)

A drawback of conventional integrator cir- cuits (figure a) is that the R-C junction is at virtual earth; this means that C appears as a capacitive load across the op-amp output, a fact that may adversely affect the stability and slew rate of the op-amp. Since the non- inverting character of an integrator is of minor importance in many applications the circuit shown in figure b ,offers a viable alternative to conventional arrangements