Datasheet > LM285-2.5

LM285-2.5

更新时间： 2024-09-18 22:35:47

品牌	Logo	应用领域
凌特 - Linear		/
页数	文件大小	规格书
4页	170K
描述
Micropower Voltage Reference

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数据手册

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LM285-2.5 数据手册

LM185-2.5/

LM285-2.5/LM385-2.5

Micropower Voltage

Reference

DESCRIPTIO

EATURE

■

20µA to 20mA Operating Range

Guaranteed 1% Initial Voltage Tolerance

Guaranteed 1Ω Dynamic Impedance

Very Low Power Consumption

The LM185-2.5 is a two-terminal band gap reference

diode that has been designed for applications which

require precision performance with micropower opera-

tion. The device provides guaranteed operation specifica-

tions at currents as low as 20µA. The nominal voltage is

2.5V with both 1% and 2% tolerances available. Some

additional features are: maximum dynamic impedance of

1Ω, low noise and excellent stability over time and tem-

perature. The advanced design, processing and testing

techniques make Linear’s LM185-2.5 a superior choice

over previous designs. A circuit for cold junction compen-

sation of a thermocouple is shown below.

O U

PPLICATI

■

Portable Meter References

Portable Test Instruments

Battery-Operated Systems

Panel Meters

Current Loop Instrumentation

For applications requiring guaranteed temperature drift,

see the LT1034 data sheet.

TYPICAL APPLICATI

Thermocouple Cold Junction Compensator

Reverse Voltage Change

≈ 50µA

–55°C ≤ T ≤ +125°C

16k

SET

LM334

2 MERCURY

CELLS 2.6V

100k W.W.

ZERO

–

LM385-2.5

950Ω

450Ω

10k ADJUST

FOR 12.17mV

AT 25°C

ACROSS 450Ω

–

–4

0.01

TYPE K

0.1

100

METER

LM185-2.5 TA01

REVERSE CURRENT (mA)

LM185-2.5 TA02

12 3 4

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