LF444

更新时间： 2024-09-12 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
10页	362K
描述
Quad Low Power JFET Input Operational Amplifier

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LF444 数据手册

May 1998

LF444

Quad Low Power JFET Input Operational Amplifier

General Description

Features

⁄ supply current of a LM148: 200 µA/Amplifier (max)

The LF444 quad low power operational amplifier provides

many of the same AC characteristics as the industry stan-

dard LM148 while greatly improving the DC characteristics

of the LM148. The amplifier has the same bandwidth, slew

rate, and gain (10 kΩ load) as the LM148 and only draws

one fourth the supply current of the LM148. In addition the

well matched high voltage JFET input devices of the LF444

reduce the input bias and offset currents by a factor of

10,000 over the LM148. The LF444 also has a very low

equivalent input noise voltage for a low power amplifier.

n Low input bias current: 50 pA (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

The LF444 is pin compatible with the LM148 allowing an im-

mediate 4 times reduction in power drain in many applica-

tions. The LF444 should be used wherever low power dissi-

pation and good electrical characteristics are the major

considerations.

n High input impedance: 10¹²Ω

10V, R_L10k: 50k (min)

n High gain V_O

Simplified Schematic

Connection Diagram

1/4 Quad

Dual-In-Line Package

DS009156-2

DS009156-1

Top View

Order Number LF444AMD, LF444CM,

LF444ACN, LF444CN or LF444MD/883

See NS Package Number D14E, M14A or N14A

Ordering Information

LF444XYZ

X indicates electrical grade

Y indicates temperature range

“M” for military, “C” for commercial

Z indicates package type “D”, “M” or “N”

™

BI-FET and BI-FET II are trademarks of National Semiconductor Corporation.

DS009156

www.national.com

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LF444883	TI	获取价格	LF444QML Quad Low Power JFET Input Operational Amplifier
LF444ACN	TI	获取价格	LF444 Quad Low Power JFET Input Operational Ampli
LF444ACN	NSC	获取价格	Quad Low Power JFET Input Operational Amplifier
LF444ACN/A+	ETC	获取价格	Voltage-Feedback Operational Amplifier
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LF444ACN/NOPB	TI	获取价格	LF444 Quad Low Power JFET Input Operational Ampli
LF444AMD	NSC	获取价格	Quad Low Power JFET Input Operational Amplifier
LF444AMD	ROCHESTER	获取价格	Operational Amplifier, 4 Func, 8000uV Offset-Max, BIPolar, CDIP14, DIP-14
LF444AMD/883B	ROCHESTER	获取价格	Operational Amplifier
LF444C	MOTOROLA	获取价格	Amplifiers and Comparators