ABSTRACT
The inverting amplifier, non-inverting amplifier, integrator, comparator, low pass filter, analog switch, analog multiplexers, astable multivibrator, peak detector, and sample and hold circuits are the basic components of a multiplier. All multipliers are developed using the aforementioned components. The non-inverting terminal (+) and inverting terminal (-) are the two input terminals. If the non-inverting terminal voltage is greater than the inverting terminal voltage, then the output goes to HIGH. The capacitor C is charged by the input signal through the diode. When the input signal falls, the diode is reverse biased and the capacitor voltage retains the peak value of the input signal. This simple circuit has errors because of the diode forward voltage drop.
