Datasheet > LM4051

LM4051

更新时间： 2024-11-29 22:55:47

品牌	Logo	应用领域
美国国家半导体 - NSC		/
页数	文件大小	规格书
14页	304K
描述
Precision Micropower Shunt Voltage Reference

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LM4051 数据手册

February 2000

LM4051

Precision Micropower Shunt Voltage Reference

General Description

Key Specifications (LM4051-1.2)

Ideal for space critical applications, the LM4051 precision

voltage reference is available in the sub-miniature (3 mm x

1.3 mm) SSOT-23 surface-mount package. The LM4051’s

advanced design eliminates the need for an external stabiliz-

ing capacitor while ensuring stability with any capacitive

load, thus making the LM4051 easy to use. Further reducing

design effort is the availability of a fixed (1.225V) and adjust-

able reverse breakdown voltage. The minimum operating

current is 60 µA for the LM4051-1.2 and the LM4051-ADJ.

Both versions have a maximum operating current of 12 mA.

n Output voltage tolerance

(A grade, 25˚C)

0.1%(max)

n Low output noise

(10 Hz to 10kHz)

20µV_rms

n Wide operating current range

60µA to 12mA

−40˚C to +85˚C

n Industrial temperature range

(tempco guaranteed from

−40˚C to +125˚C)

n Low temperature coefficient

50 ppm/˚C (max)

The LM4051 comes in three grades (A, B, and C). The best

grade devices (A) have an initial accuracy of 0.1%, while the

B-grade have 0.2% and the C-grade 0.5%, all with a tempco

of 50 ppm/˚C guaranteed from −40˚C to 125˚C.

Applications

n Portable, Battery-Powered Equipment

n Data Acquisition Systems

n Instrumentation

The LM4051 utilizes fuse and zener-zap trim of reference

voltage during wafer sort to ensure that the prime parts have

an accuracy of better than 0.1% (A grade) at 25˚C.

n Process Control

n Energy Management

n Automotive and Industrial

n Precision Audio Components

n Base Stations

n Battery Chargers

n Medical Equipment

n Communication

Features

n Small packages: SSOT-23

n No output capacitor required

n Tolerates capacitive loads

n Reverse breakdown voltage options of 1.225V and

adjustable

Connection Diagrams

SSOT-23

DS101222-40

DS101222-1

*This pin must be left floating or connected to pin 2.

Top View

See NS Package Number MF03A

DS101222

www.national.com

12 3 4 5 6 7...14

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与LM4051相关器件

型号	品牌	获取价格	描述	数据表
LM4051_05	NSC	获取价格	Precision Micropower Shunt Voltage Reference
LM4051_15	TI	获取价格	Precision Micropower Shunt Voltage Reference
LM4051_EM3-1.2	MAXIM	获取价格	50ppm/∑C Precision Micropower Shunt Voltage R
LM4051_EM3-12	MAXIM	获取价格	50ppmC Precision Micropower Shunt Voltage References with Multiple Reverse Breakdown
LM4051_EM3-12+T	MAXIM	获取价格	50ppmC Precision Micropower Shunt Voltage References with Multiple Reverse Breakdown
LM4051_EX3-1.2	MAXIM	获取价格	50ppm/°C Precision Micropower Shunt Voltage R
LM4051_EX3-12	MAXIM	获取价格	50ppmC Precision Micropower Shunt Voltage References with Multiple Reverse Breakdown
LM4051_EX3-12+T	MAXIM	获取价格	50ppmC Precision Micropower Shunt Voltage References with Multiple Reverse Breakdown
LM4051AEM3-1.2	NSC	获取价格	Precision Micropower Shunt Voltage Reference
LM4051AEM3-1.2	TI	获取价格	LM4051 Precision Micropower Shunt Voltage Reference

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