This simulation demonstrates an active sample-and-hold circuit using operational amplifiers and a MOSFET switch. The green waveform represents the input signal (a continuous sine wave at 5 kHz), while the orange waveform shows the output signal. During the sampling phase, the MOSFET switch connects, allowing the capacitor to charge to the instantaneous input voltage. When the switch opens during the hold phase, the capacitor retains this voltage, and the output remains constant until the next sa