UTC LM393 Low Power Low Offset Voltage Dual Comparator IC

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The LM393 consist of four independent voltage comparators that are designed to operate from a single power supply over a wide range of voltages. Operation from dual supplies also is possible, as long as the difference between the two supplies is 2 V to 36 V, and VCC is at least 1.5 V more positive than the input common-mode voltage. Current drain is independent of the supply voltage. The outputs can be connected to other open-collector outputs to achieve wired-AND relationships.



  • Single or dual supply operation.
  • Wide operating supply range (VCC=2V ~ 36V or ±1 ~ ±18V)
  • Input common-mode voltage includes ground.
  • Low supply current drain ICC=0.8mA (Typical).
  • Low input bias current IBIAS=25nA (Typical).
  • Output compatible with TTL, DTL, and CMOS logic system.
Model LM393
Brand Unisonic Technologies
Supply Voltage ±18 or 36V
Package DIP-8
Differential Input Voltage 36V
Input Voltage -0.3V ~ +36V
Response Time 1400ns
Output Saturation Voltage 400mV
Power Dissipation 780mW

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