This simulation shows an op-amp–based precision rectifier and signal conditioning circuit driven by a 60 Hz AC input. The input sine wave has a peak of about ±2 V, as seen in the waveform display, with an RMS value of approximately 1.41 V, which matches a 2 V peak sine wave. The green trace represents the input signal, while the red trace shows the processed output. The circuit uses operational amplifiers along with diodes and resistors to overcome the diode forward-voltage drop limitation found