(ACTIVE) Dual Differential Comparator


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, LM2903V, and LM2903AV devices are 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) (LM193)
  • 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
  • Low Output Saturation Voltage
  • Output Compatible With TTL, MOS, and CMOS
  • On Products Compliant to MIL-PRF-38535,
    All Parameters Are Tested Unless Otherwise Noted. On All Other Products, Production Processing Does Not Necessarily Include Testing of All Parameters.

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Number of Channels (#) 2    
Output Type Open Collector    
Vs (Min) (V) 2    
Vs (Max) (V) 30    
Propagation Delay Time (uS) 1.3    
Vos (Offset Voltage @ 25C) (Max) (mV) 7    
Iq per channel (Typ) (mA) 0.4    
Input Bias Current (+/-) (Max) (nA) 50    
Rail-to-Rail Out    
Rating Catalog    
Operating Temperature Range (C) -40 to 125    
Features N/A    
VICR (Max) (V) 28.5    
VICR (Min) (V) 0    
Package Group PDIP|8^SOIC|8^SO|8^TSSOP|8^VSSOP|8    

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