Comparator Ic. A comparator is a circuit that compares two input voltages or currents and gives output high or low as per input signal. The lm393 ic can be considered as the equivalent comparator version of the most popular lm358 op amp.
This ic has 4 independent operational amplifiers on a single chip. The lm397 device is a single voltage comparator with an input common mode that includes ground. Comparator circuits are widely used to compare physical measurements provided those physical variables can be translated into voltage signals.
Lm339 lm239 lm139 lm2901 quad differential comparators datasheet rev.
Meaning it includes 4 separate voltage comparators whose inputs and outputs are appropriately terminated via the respective external pins of the ic package as shown below. They are commonly used in devices that measure and digitize analog signals such as successive approximation adcs as well as relaxation oscillators. The lm397 device is a single voltage comparator with an input common mode that includes ground. These comparators are designed for use in level detection low level sensing and memory applications in consumer automotive and industrial electronic applications.
