LM393 IC : Pin Configuration, Features & Its Working

• This IC has two inbuilt operational amplifiers internally which are compensated with frequency.
• This is using a single power supply for performing their different task.
• It can work perfectly with split power supply sources.

Working of LM393 IC

• It consists of two inbuilt operational amplifiers (op-amp) and both op-amps used a single power.
• The power source connected with the Vcc and GND pins of the LM393 IC to activate the IC.
• Then the two input voltage provide to the op-amp for comparison and then we get the output from the op-amp.
• If the input voltage 1 > input voltage 2 then the output voltage is low (GND).
• If the input voltage 1 < input voltage 2 then the output voltage is high (VCC).

Pin Configuration

Features of LM393 IC

• Single voltage supply ranges from 2.0 Vdc toward 36 Vdc.
• Split supply range will be from +1.0 Vdc or -1.0 Vdc to +18 Vdc or -18 Vdc.
• Little Supply Voltage of Current Drain Independent is 0.4 mA.
• The input bias current is low that is 25nA.
• Input offset current is low that is 5nA.
• Both the range of differential input, as well as Power Supply Voltage, are equivalent.
• The output voltage is well-suited by ECL, MOS, DTL, TTL, & CMOS Logic Levels.

Applications of LM393 IC

• It is used in Voltage Comparator circuits, Zero-Crossing detectors, Battery-Powered Applications, High Voltage protection/Warning, and Oscillator circuits.
• It Can be used to drive a Relay, Lamp, Motor Etc.