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LF451

更新时间： 2024-11-03 22:47:11

品牌	Logo	应用领域
美国国家半导体 - NSC		运算放大器
页数	文件大小	规格书
8页	209K
描述
LF451 Wide-Bandwidth JFET-Input Operational Amplifier

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LF451 数据手册

December 1995

LF451 Wide-Bandwidth

JFET-Input Operational Amplifier

General Description

Features

Internally trimmed offset voltage

Low input bias current

Low input noise current

Wide gain bandwidth

High slew rate

5.0 mV (max)

50 pA (typ)

The LF451 is a low-cost high-speed JFET-input operational

amplifier with an internally trimmed input offset voltage (BI-

FET II^TMtechnology). The device requires a low supply cur-

rent and yet maintains a large gain bandwidth product and a

fast slew rate. In addition, well matched high voltage JFET

input devices provide very low input bias and offset cur-

rents. The LF451 is pin compatible with the standard

LM741, allowing designers to upgrade the overall perform-

ance of existing designs.

0.01 pA/ Hz (typ)

4 MHz (typ)

13 V/ms (typ)

3.4 mA (max)

Low supply current

10 X (typ)

High input impedance

Low total harmonic distortion A

10,

0.02% (typ)

, f

p–p

10k, V

20 V

20 Hz–20 kHz

50 Hz (typ)

The LF451 may be used in such applications as high-speed

integrators, fast D/A converters, sample-and-hold circuits

and many other circuits requiring low input bias current, high

input impedance, high slew rate and wide bandwidth.

Low 1/f noise corner

Fast settling time to 0.01%

2 ms (typ)

Connection Diagram

Typical Connection

S.O. Package

TL/H/9660–2

Top View

Order Number LF451CM

See NS Package Number M08A

TL/H/9660–1

Simplified Schematic

TL/H/9660–3

BI-FET^TMis a trademark of National Semiconductor Corporation.

1995 National Semiconductor Corporation

TL/H/9660

RRD-B30M125/Printed in U. S. A.

12 3 4 5 6 7 8

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