LM112H/883 NSC [National Semiconductor], LM112H/883 Datasheet

LM112H/883

Manufacturer Part Number

LM112H/883

Description

Operational Amplifiers

Manufacturer

NSC [National Semiconductor]

Datasheet

1.LM112H883.pdf (6 pages)

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C 1995 National Semiconductor Corporation

LM112 LM212 LM312 Operational Amplifiers

General Description

The LM112 series are micropower operational amplifiers

with very low offset-voltage and input-current errors at

least a factor of ten better than FET amplifiers over a

series that also use supergain transistors they differ in that

they include internal frequency compensation and have pro-

visions for offset adjustment with a single potentiometer

These amplifiers will operate on supply voltages of

formance is not appreciably affected over this range of volt-

ages so operation from unregulated power sources is easily

accomplished They can also be run from a single supply

like the 5V used for digital circuits

The LM112 series are the first IC amplifiers to improve reli-

ability by including overvoltage protection for the MOS com-

pensation capacitor Without this feature IC’s have been

Connection Diagram

Auxiliary Circuits

55 C to

20V drawing a quiescent current of only 300

125 C temperature range Similar to the LM108

Offset Balancing

TL H 7751

Order Number LM112H LM212H LM312H or LM112H 883

See NS Package Number H08C

TL H 7751– 2

Metal Can Package

A Per-

2V to

Top View

known to suffer catastrophic failure caused by short-dura-

tion overvoltage spikes on the supplies Unlike other inter-

nally-compensated IC amplifiers it is possible to overcom-

pensate with an external capacitor to increase stability mar-

gin

The LM212 is identical to the LM112 except that the LM212

has its performance guaranteed over a

temperature range instead of

LM312 is guaranteed over a 0 C to

range

Features

Maximum input bias current of 3 nA over temperature

Offset current less than 400 pA over temperature

Low noise

Guaranteed drift specifications

Overcompensation for Greater Stability Margin

TL H 7751 – 4

55 C to

RRD-B30M115 Printed in U S A

70 C temperature

September 1992

25 C to

TL H 7751 – 3

125 C The

85 C

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LM112H/883 Summary of contents

Page 1

LM112 LM212 LM312 Operational Amplifiers General Description The LM112 series are micropower operational amplifiers with very low offset-voltage and input-current errors at least a factor of ten better than FET amplifiers over 125 C temperature 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 (Note 5) Supply Voltage Power Dissipation (Note 1) Differential Input Current (Note 2) Input Voltage (Note 3) Output ...

Page 3

Typical Performance Characteristics Input Currents Input Noise Voltage Voltage Gain Open Loop Frequency Response LM112 LM212 Offset Error Drift Error Closed Loop Power Supply Rejection Output Impedance Output Swing Supply Current Large Signal Frequency Voltage Follower Pulse Response Response 3 ...

Page 4

Typical Performance Characteristics Input Currents Input Noise Voltage Voltage Gain Open Loop Frequency Response LM312 Offset Error Drift Error Closed Loop Power Supply Rejection Output Impedance Output Swing Supply Current Large Signal Frequency Voltage Follower Pulse Response Response 4 TL ...

Page 5

Schematic Diagram 5 ...

Page 6

Physical Dimensions inches (millimeters) Order Number LM112H LM212H LM312H or LM112H 883 LIFE SUPPORT POLICY NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF ...

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