LF442ACN National Semiconductor, LF442ACN Datasheet

LF442ACN

Manufacturer Part Number

LF442ACN

Description

Operational Amplifier (Op-Amp) IC

Manufacturer

National Semiconductor

Datasheets

1.LF442AMH.pdf (14 pages)

2.LF442AMH.pdf (12 pages)

3.LF442AMH.pdf (12 pages)

Specifications of LF442ACN

No. Of Amplifiers

Slew Rate

1V/Âµs

No. Of Pins

Peak Reflow Compatible (260 C)

Leaded Process Compatible

Mounting Type

Through Hole

Package / Case

8-DIP

Lead Free Status / RoHS Status

Contains lead / RoHS non-compliant

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Meier Automation Equipment Co., Limited

Part Number:

LF442ACN

Manufacturer:

NS/国半

Quantity:

20 000

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LF442

Dual Low Power JFET Input Operational Amplifier

General Description

The LF442 dual low power operational amplifiers provide

many of the same AC characteristics as the industry stan-

dard LM1458 while greatly improving the DC characteristics

of the LM1458. The amplifiers have the same bandwidth,

slew rate, and gain (10 kΩ load) as the LM1458 and only

draw one tenth the supply current of the LM1458. In addition

the well matched high voltage JFET input devices of the

LF442 reduce the input bias and offset currents by a factor of

10,000 over the LM1458. A combination of careful layout

design and internal trimming guarantees very low input offset

voltage and voltage drift. The LF442 also has a very low

equivalent input noise voltage for a low power amplifier.

The LF442 is pin compatible with the LM1458 allowing an

immediate 10 times reduction in power drain in many appli-

cations. The LF442 should be used where low power dissi-

pation and good electrical characteristics are the major con-

siderations.

Typical Connection

Ordering Information

LF442XYZ

X indicates electrical grade

Y indicates temperature range

Z indicates package type

BI-FET II

“M” for military

“C” for commercial

“H” or “N”

™

is a trademark of National Semiconductor Corporation.

DS009155

00915501

Features

n 1/10 supply current of a LM1458:

n Low input bias current: 50 pA (max)

n Low input offset voltage: 1 mV (max)

n Low input offset voltage drift: 10 µV/˚C (max)

n High gain bandwidth: 1 MHz

n High slew rate: 1 V/µs

n Low noise voltage for low power:

n Low input noise current:

n High input impedance: 10

n High gain V

Connection Diagrams

Pin 4 connected to case

Order Number LF442AMH or LF442MH/883

Order Number LF442ACN or LF442CN

See NS Package Number H08A

See NS Package Number N08E

Dual-In-Line Package

Metal Can Package

10V, R

Top View

= 10k: 50k (min)

Ω

400 µA (max)

00915502

www.national.com

00915504

August 2000

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