(ACTIVE) Quad Differential Comparator


Functional Diagram


The LMx39x and the LM2901xx devices 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.

The LM139 and LM139A devices are characterized for operation over the full military temperature range of –55°C to 125°C. The LM239 and LM239A devices are characterized for operation from –25°C to 125°C. The LM339 and LM339A devices are characterized for operation from 0°C to 70°C. The LM2901, LM2901AV, and LM2901V devices are characterized for operation from –40°C to 125°C.


  • Wide Supply Ranges
    • Single Supply: 2 V to 36 V
      (Tested to 30 V for Non-V Devices and
      32 V for V-Suffix Devices)
    • Dual Supplies: ±1 V to ±18 V
      (Tested to ±15 V for Non-V Devices and
      ±16 V for V-Suffix Devices)
  • Low Supply-Current Drain Independent of
    Supply Voltage: 0.8 mA (Typical)
  • 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
  • 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.


Number of Channels (#) 4    
Output Type Open Collector    
Vs (Min) (V) 2    
Vs (Max) (V) 30    
Propagation Delay Time (uS) 0.3    
Vos (Offset Voltage @ 25C) (Max) (mV) 5    
Iq per channel (Typ) (mA) 0.2    
Input Bias Current (+/-) (Max) (nA) 50    
Rail-to-Rail Out    
Rating Catalog    
Operating Temperature Range (C) 0 to 70    
Features N/A    
VICR (Max) (V) 28.5    
VICR (Min) (V) 0    
Package Group PDIP|14^SOIC|14^SO|14^SSOP|14^TSSOP|14    

Companion Products

Technical Documents

Datasheet (1)

Application notes (2)

More literature (1)

Other Products in Same Family

� Texas Instruments Inc. Privacy Terms