Datasheet > LM129_1

LM129_1

更新时间： 2024-11-12 05:41:59

品牌	Logo	应用领域
凌特 - Linear		/
页数	文件大小	规格书
4页	121K
描述
6.9V Precision Voltage Reference

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LM129_1 数据手册

LM129/LM329

6.9V Precision

Voltage Reference

FEATURES

DESCRIPTIO

■

Guaranteed 10ppm/°C Temperature Coefficient

The LM129 temperature compensated 6.9V zener refer-

ences provide excellent stability over time and tempera-

ture, very low dynamic impedance and a wide operating

current range. The device achieves low dynamic imped-

ance by incorporating a high gain shunt regulator around

the zener. The excellent noise performance of the device is

achieved by using a “buried zener” design which elimi-

nates surface noise phenomenon associated with ordi-

nary zeners. To serve a wide variety of applications, the

LM129 is available in several temperature coefficient

grades and two package styles. A 20mA positive current

source application is shown below.

■

Guaranteed 1Ω Maximum Dynamic Impedance

■

Guaranteed 20µV Maximum Wideband Noise

Wide Operating Current Range 0.6mA to 15mA

■

APPLICATIO S

■

Transducers

■

A/D and D/A Converters

■

Calibration Standards

Instrumentation Reference

■

, LTC and LT are registered trademarks of Linear Technology Corporation.

TYPICAL APPLICATIO

20mA Positive Current Source

Reverse Voltage Change

20V

= 25°C

174Ω

0.1%

20k

0.1%

LT1001

–

LM329

6.95V

20k

0.1%

10k

OUT

20mA

4.3k

129/329 TA01

REVERSE CURRENT (mA)

129/329 TA01b

12 3 4

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