LM397MWC

更新时间： 2024-11-23 13:00:07

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德州仪器 - TI		比较器
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LM397MWC 数据手册

LM397

www.ti.com

SNOS977D –MAY 2001–REVISED MARCH 2013

LM397 Single General Purpose Voltage Comparator

Check for Samples: LM397

FEATURES

DESCRIPTION

The LM397 is a single voltage comparator with an

input common mode that includes ground. The

LM397 is designed to operate from a single 5V to

30V power supply or a split power supply. Its low

supply current is virtually independent of the

magnitude of the supply voltage.

•

(T_A= 25°C. Typical Values Unless Otherwise

Specified).

•

5-Pin SOT-23 Package

Industrial Operating Range −40°C to +85°C

Single or Dual Power Supplies

Wide Supply Voltage Range 5V to 30V

Low Supply Current 300µA

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).

Low Input Bias Current 7nA

Low Input Offset Current ±1nA

Low Input Offset Voltage ±2mV

Response Time 440ns (50mV Overdrive)

Input Common Mode Voltage 0 to V_S- 1.5V

The LM397 is available in space saving 5-Pin SOT-

23 package and pin compatible to TI’s TL331, single

differential comparator.

APPLICATIONS

•

A/D Converters

Pulse, Square Wave Generators

Peak Detector

Industrial Applications

Typical Circuit

Connection Diagram

Top View

PULL-UP

GND

OUTPUT

Figure 1. 5-Pin SOT-23 Package

See Package Number DBV0005A

Figure 2. Inverting Comparator with Hysteresis

These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam

during storage or handling to prevent electrostatic damage to the MOS gates.

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

All trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

12 3 4 5 6 7...14

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