LM392H National Semiconductor Corporation, LM392H Datasheet

LM392H

Manufacturer Part Number

LM392H

Description

LM392 - Low Power Operational Amplifier/voltage Comparator, Package: Soic Narrow, Pin Nb=8

Manufacturer

National Semiconductor Corporation

Datasheet

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LM392

Low Power Operational Amplifier/Voltage Comparator

General Description

The LM392 series consists of 2 independent building block

circuits. One is a high gain, internally frequency compen-

sated operational amplifier, and the other is a precision

voltage comparator. Both the operational amplifier and the

voltage comparator have been specifically designed to op-

erate from a single power supply over a wide range of

voltages. Both circuits have input stages which will

common-mode input down to ground when operating from a

single power supply. Operation from split power supplies is

also possible and the low power supply current is indepen-

dent of the magnitude of the supply voltage.

Application areas include transducer amplifier with pulse

shaper, DC gain block with level detector, VCO, as well as all

conventional operational amplifier or voltage comparator cir-

cuits. Both circuits can be operated directly from the stan-

dard 5 V

and the output of the comparator will interface directly with

either TTL or CMOS logic. In addition, the low power drain

makes the LM392 extremely useful in the design of portable

equipment.

Advantages

n Eliminates need for dual power supplies

n An internally compensated op amp and a precision

n Allows sensing at or near ground

Connection Diagram

comparator in the same package

power supply voltage used in digital systems,

DS007793

(Amplifier B = Operational Amplifier)

Order Number LM392M or LM392MX

See NS Package Number M08A

See NS Package Number N08E

(Amplifier A = Comparator)

Dual-In-Line Package

Order Number LM392N

(Top View)

n Power drain suitable for battery operation

n Pin-out is the same as both the LM358 dual op amp and

Features

n Wide power supply voltage range

n Low supply current drain — essentially independent of

n Low input biasing current:

n Low input offset voltage:

n Low input offset current:

n Input common-mode voltage range includes ground

n Differential input voltage range equal to the power

ADDITIONAL OP AMP FEATURES

n Internally frequency compensated for unity gain

n Large DC voltage gain:

n Wide bandwidth (unity gain):

n Large output voltage swing:

ADDITIONAL COMPARATOR FEATURES

n Low output saturation voltage:

n Output voltage compatible with all types of logic systems

the LM393 dual comparator

supply voltage:

supply voltage

Single supply:

Dual supply:

DS007793-1

600 µA

1.5V to

3V to 32V

100 dB

5 nA

2 mV

16V

50 nA

0V to V

1 MHz

250 mV at 4 mA

− 1.5V

www.national.com

August 2000

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