These devices consist of two 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.
The LM193 device is characterized for operation from −55°C to 125°C. The LM293 and LM293A devices are characterized for operation from −25°C to 85°C. The LM393 and LM393A devices are characterized for operation from 0°C to 70°C. The LM2903 device is characterized for operation from −40°C to 125°C.
Single-Supply or Dual Supplies
Wide Range of Supply Voltage
Maximum Rating: 2 V to 36 V
Tested to 30 V: Non-V Devices
Tested to 32 V: V-Suffix Devices
Low Supply-Current Drain Independent of Supply Voltage: 0.4 mA (Typical) Per Comparator
Low Input Bias Current: 25 nA (Typical)
Low Input Offset Current: 3 nA (Typical) (LM139)
Low Input Offset Voltage: 2 mV (Typical)
Common-Mode Input Voltage Range Includes Ground
Differential Input Voltage Range Equal to Maximum-Rated Supply Voltage: ±36 V