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Single General Purpose Voltage Comparator

NEW - Custom reel may be available
Inventory: 103,145

Quality information

RoHS Yes
Lead finish / Ball material SN
MSL rating / Peak reflow Level-1-260C-UNLIM
Material content View
DPPM / MTBF / Fit rate View
Qualification summary View
Ongoing reliability monitoring View
Device marking View

Packaging information

Package | Pins Package qty | Carrier Operating temperature range (°C)
SOT-23 (DBV) | 5 3,000 | LARGE T&R
Custom reel may be available
-40 to 85
Package | Pins SOT-23 (DBV) | 5
Package qty | Carrier 3,000 | LARGE T&R
Custom reel may be available
Operating temperature range (°C) -40 to 85
View TI packaging information

Features for the LM397

  • TA = 25°C. Typical Values Unless Otherwise
  • 5-Pin SOT-23 Package
  • Industrial Operating Range −40°C to +85°C
  • Single or Dual Power Supplies
  • Wide Supply Voltage Range 5 V to 30 V
  • Low Supply Current 300 µA
  • Low Input Bias Current 7 nA
  • Low Input Offset Current ±1 nA
  • Low Input Offset Voltage ±2 mV
  • Response Time 440 ns (50-mV Overdrive)
  • Input Common-Mode Voltage 0 to VS – 1.5 V

Description for the LM397

The LM397 device is a single voltage comparator with an input common mode that includes ground. The LM397 is designed to operate from a single 5-V to 30-V power supply or a split power supply. Its low supply current is virtually independent of the magnitude of the supply voltage.

The LM397 features an open-collector output stage. This allows the connection of an external resistor at the output. The output can directly interface with TTL, CMOS and other logic levels, by tying the resistor to different voltage levels (level translator).

The LM397 is available in the space-saving 5-Pin SOT-23 package and is pin-compatible to TI’s TL331, a single differential comparator.


Qty Price (USD)
1-99 0.557
100-249 0.378
250-999 0.292
1,000+ 0.194

Additional package qty | carrier options

Package qty | Carrier 1,000 | LARGE T&R
Inventory 196,342
Qty | Price (USD) 1ku | 0.194 1-99 0.557 100-249 0.378 250-999 0.292 1,000+ 0.194
Custom reel may be available