LM2903PSR

双差分比较仪 DUAL DIFFERENTIAL COMPARATORS

description/ordering information

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 is characterized for operation from −55°C to 125°C. The LM293 and LM293A are characterized for operation from −25°C to 85°C. The LM393 and LM393A are characterized for operation from 0°C to 70°C. The LM2903 is characterized for operation from −40°C to 125°C.

• Single Supply or Dual Supplies

• Wide Range of Supply Voltage

   − Max 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 Typ Per Comparator

• Low Input Bias Current . . . 25 nA Typ

• Low Input Offset Current . . . 3 nA Typ LM193

• Low Input Offset Voltage . . . 2 mV Typ

• Common-Mode Input Voltage Range Includes Ground

• Differential Input Voltage Range Equal to Maximum-Rated Supply Voltage . . . ±36 V

• Low Output Saturation Voltage

• Output Compatible With TTL, MOS, and CMOS