While both operational amplifiers and voltage comparators have been with us since before 1970, the similarities and differences tend to be vague. This discussion will help in understanding this ...

Schemes of two-half-period rectifiers on op amps with switching inputs in accordance with the polarity of the input voltage are given. The switching of inputs is performed by a control signal taken ...

The LM324 low-voltage quad op-amp is decades-old design that it refuses to die – because it subtler characteristics are just so useful. For example, it works single-supply from 3V to 30V, its inputs ...