Dual General Purpose LinCMOS(TM) Differential Comparator - TLC372


Dual General Purpose LinCMOS(TM) Differential Comparator


This device is fabricated using LinCMOS™ technology and consists of two independent voltage comparators, each designed to operate from a single power supply. Operation from dual supplies is also possible if the difference between the two supplies is 2 V to 18 V. Each device features extremely high input impedance (typically greater than 1012Ω), allowing direct interfacing with high-impedance sources. The outputs are n-channel open-drain configurations and can be connected to achieve positive-logic wired-AND relationships.

The TLC372 has internal electrostatic discharge (ESD) protection circuits and has been classified with a 1000-V ESD rating using human body model testing. However, care should be exercised in handling this device as exposure to ESD may result in a degradation of the device parametric performance.

The TLC372C is characterized for operation from 0°C to 70°C. The TLC372I is characterized for operation from –40°C to 85°C. The TLC372M is characterized for operation over the full military temperature range of –55°C to 125°C. The TLC372Q is characterized for operation from –40°C to 125°C.


  • Single or Dual-Supply Operation
  • Wide Range of Supply Voltages 2 V to 18 V
  • Low Supply Current Drain 150 µA Typ at 5 V
  • Fast Response Time . . . 200 ns Typ for TTL-Level Input Step
  • Built-in ESD Protection
  • High Input Impedance . . . 1012 Ω Typ
  • Extremely Low Input Bias Current 5 pA Typ
  • Ultrastable Low Input Offset Voltage
  • Input Offset Voltage Change at Worst-Case Input Conditions Typically 0.23 µV/Month, Including the First 30 Days
  • Common-Mode Input Voltage Range Includes Ground
  • Output Compatible With TTL, MOS, and CMOS
  • Pin-Compatible With LM393

LinCMOS is a trademark of Texas Instruments Incorporated.
All other trademarks are the property of their respective owners.

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Parametrics Compare all products in Comparator

Vs (Min) (V)
Vs (Max) (V)
tRESP Low - to - High (us)
Vos (Offset Voltage @ 25C) (Max) (mV)
Iq per channel (Max) (mA)
Output Type
Input Bias Current (+/-) (Max) (nA)
Number of Channels (#)
VICR (Max) (V)
VICR (Min) (V)
Operating Temperature Range (C)
Approx. Price (US$)
TLC372 TLC374
3     3    
16     16    
0.2     0.2    
5     5    
0.15     0.15    
Open Collector
Open Drain    
Open Collector
Open Drain    
0.03     0.03    
2     4    
Out     Out    
15     15    
0     0    
Catalog     Catalog    
-40 to 125
-40 to 85
0 to 70    
-40 to 85
0 to 70    
0.35 | 1ku     0.43 | 1ku    

Other qualified versions of TLC372

Version Part Number Definition
Military TLC372M QML certified for Military and Defense Applications
Enhanced Product TLC372-EP Supports Defense, Aerospace and Medical Applications
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