LM397MF National Semiconductor, LM397MF Datasheet

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LM397MF

Manufacturer Part Number
LM397MF
Description
Manufacturer
National Semiconductor
Datasheet

Specifications of LM397MF

Number Of Elements
1
Output Type
Open Collector
Technology
Bipolar
Input Offset Voltage
7@30VmV
Input Bias Current (typ)
250nA
Single Supply Voltage (typ)
9/12/15/18/24/28V
Dual Supply Voltage (typ)
±3/±5/±9/±12V
Supply Current (max)
0.7@5VmA
Voltage Gain In Db
101.6dB
Power Supply Requirement
Single/Dual
Single Supply Voltage (min)
5V
Single Supply Voltage (max)
30V
Dual Supply Voltage (min)
±2.5V
Dual Supply Voltage (max)
±15V
Operating Temp Range
-40C to 85C
Operating Temperature Classification
Industrial
Mounting
Surface Mount
Pin Count
5
Package Type
SOT-23
Dc
N/A
Lead Free Status / RoHS Status
Not Compliant

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0
© 2006 National Semiconductor Corporation
Ordering Information
LM397
Single General Purpose Voltage Comparator
General 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.
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 space saving 5-Pin SOT23 pack-
age and pin compatible to TI’s TL331, single differential
comparator.
Connection Diagram
5-Pin SOT-23
Package
5-Pin SOT23
Top View
Part Number
LM397MFX
LM397MF
DS200221
20022108
Package Marking
C397
Features
(T
n 5-Pin SOT23 package
n Industrial operating range
n Single or dual power supplies
n Wide supply voltage range
n Low supply current
n Low input bias current
n Low input offset current
n Low input offset voltage
n Response time
n Input common mode voltage
Applications
n A/D converters
n Pulse, square wave generators
n Peak detector
n Industrial applications
Typical Circuit
A
FIGURE 1. Inverting Comparator with Hysteresis
= 25˚C. Typical values unless otherwise specified).
1k Units Tape and Reel
3k Units Tape and Reel
Transport Media
440ns (50mV overdrive)
NSC Drawing
−40˚C to +85˚C
MF05A
0 to V
www.national.com
August 2006
20022109
5V to 30V
S
300µA
±
- 1.5V
±
2mV
7nA
1nA

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LM397MF Summary of contents

Page 1

... Connection Diagram 5-Pin SOT23 Top View Ordering Information Package Part Number LM397MF 5-Pin SOT-23 LM397MFX © 2006 National Semiconductor Corporation Features (T = 25˚C. Typical values unless otherwise specified 5-Pin SOT23 package n Industrial operating range n Single or dual power supplies n Wide supply voltage range ...

Page 2

... Absolute Maximum Ratings If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. ESD Tolerance (Note 2) Human Body Model Machine Model V Differential IN Supply Voltages Voltage at Input Pins Storage Temperature Range Electrical Characteristics + 0V Boldface limits apply at the temperature extremes. ...

Page 3

Typical Performance Characteristics Supply Current vs. Supply Voltage Output Saturation Voltage vs. Output Sink Current Response Time for Various Input Overdrives – 25˚C. Unless otherwise specified. A Input Bias Current vs. Supply Current 20022103 Input Offset Voltage ...

Page 4

Application Notes Basic Comparators A comparator is quite often used to convert an analog signal to a digital signal. The comparator compares an input volt- age ( the non-inverting pin to the reference voltage ...

Page 5

Application Notes (Continued) Input Stage The LM397 has a bipolar input stage. The input common mode voltage range is from – 1.5V). S Output Stage The LM397 has an open collector grounded-emitter NPN output transistor for the ...

Page 6

SOT23-5 Tape and Reel Specification Tape Format Tape Section Leader (Start End) Carrier Trailer (Hub End) TAPE DIMENSIONS 8mm 0.130 0.124 (3.3) (3.15) Tape Size DIM A DIM Ao www.national.com # Cavities Cavity Status 0 (min) Empty 75 (min) Empty ...

Page 7

SOT23-5 Tape and Reel Specification REEL DIMENSIONS 8mm 7.00 0.059 330.00 1.50 Tape Size A B (Continued) 0.512 0.795 2.165 0.331 + 0.059/−0.000 13.00 20.20 55.00 8.40 + 1.50/−0. 20022116 0.567 W1 + 0.078/−0.039 14.40 ...

Page 8

... BANNED SUBSTANCE COMPLIANCE National Semiconductor follows the provisions of the Product Stewardship Guide for Customers (CSP-9-111C2) and Banned Substances and Materials of Interest Specification (CSP-9-111S2) for regulatory environmental compliance. Details may be found at: www.national.com/quality/green. ...

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