LF147

更新时间： 2025-03-16 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
13页	409K
描述
Wide Bandwidth Quad JFET Input Operational Amplifiers

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数据手册

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LF147 数据手册

May 1999

LF147/LF347

Wide Bandwidth Quad JFET Input Operational Amplifiers

General Description

The LF147 is a low cost, high speed quad JFET input opera-

tional amplifier with an internally trimmed input offset voltage

Features

n Internally trimmed offset voltage: 5 mV max

n Low input bias current: 50 pA

n Low input noise current:

™

(BI-FET II technology). The device requires a low supply

current 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

currents. The LF147 is pin compatible with the standard

LM148. This feature allows designers to immediately up-

grade the overall performance of existing LF148 and LM124

designs.

n Wide gain bandwidth: 4 MHz

n High slew rate: 13 V/µs

n Low supply current: 7.2 mA

n High input impedance: 10¹²Ω

n Low total harmonic distortion A_V10,:

0.02%

R_L10k, V_O20 Vp-p, BW 20 Hz−20 kHz

n Low 1/f noise corner: 50 Hz

n Fast settling time to 0.01%: 2 µs

The LF147 may be used in applications such as high speed

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

and many other circuits requiring low input offset voltage,

low input bias current, high input impedance, high slew rate

and wide bandwidth. The device has low noise and offset

voltage drift.

Simplified Schematic

Connection Diagram

⁄4

Quad

Dual-In-Line Package

DS005647-1

Note 1: Available per SMD #8102306, JM38510/11906.

DS005647-13

Top View

Order Number LF147J, LF347M, LF347BN,

LF347N or LF147J/883 (Note 1)

See NS Package Number J14A, M14A or N14A

™

BI-FET II is a trademark of National Semiconductor Corporation.

DS005647

www.national.com

12 3 4 5 6 7...13

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与LF147相关器件

型号	品牌	获取价格	描述	数据表
LF147-LF247	STMICROELECTRONICS	获取价格	WIDE BANDWIDTH QUAD J-FET OPERATIONAL AMPLIFIERS
LF147-MD8	TI	获取价格	四路、30V、4MHz、FET 输入运算放大器 \| Y \| 0 \| -55 to 125
LF147AGC	ETC	获取价格	Voltage-Feedback Operational Amplifier
LF147AJ	ETC	获取价格	Voltage-Feedback Operational Amplifier
LF147BGC	ETC	获取价格	Voltage-Feedback Operational Amplifier
LF147BJ	ETC	获取价格	Voltage-Feedback Operational Amplifier
LF147D	STMICROELECTRONICS	获取价格	WIDE BANDWIDTH QUAD J-FET OPERATIONAL AMPLIFIERS
LF147D/833	TI	获取价格	OP-AMP
LF147D/883	NSC	获取价格	IC QUAD OP-AMP, 8000 uV OFFSET-MAX, 4 MHz BAND WIDTH, CDIP14, HERMETIC SEALED, DIP-14, Ope
LF147D/883B	NSC	获取价格	IC QUAD OP-AMP, 8000 uV OFFSET-MAX, 4 MHz BAND WIDTH, CDIP14, HERMETIC SEALED, CAVITY, DIP