Datasheet > LM185-2.5

LM185-2.5

更新时间： 2024-09-27 23:16:47

品牌	Logo	应用领域
美国国家半导体 - NSC		二极管
页数	文件大小	规格书
13页	741K
描述
Micropower Voltage Reference Diode

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LM185-2.5 数据手册

February 2005

LM185-2.5/LM285-2.5/LM385-2.5

Micropower Voltage Reference Diode

The LM185-2.5 is rated for operation over a −55˚C to 125˚C

temperature range while the LM285-2.5 is rated −40˚C to

85˚C and the LM385-2.5 0˚C to 70˚C. The LM185-2.5/

LM285-2.5 are available in a hermetic TO-46 package and

the LM285-2.5/LM385-2.5 are also available in a low-cost

TO-92 molded package, as well as S.O. and SOT-23. The

LM185-2.5 is also available in a hermetic leadless chip

carrier package.

General Description

The LM185-2.5/LM285-2.5/LM385-2.5 are micropower

2-terminal band-gap voltage regulator diodes. Operating

over a 20 µA to 20 mA current range, they feature excep-

tionally low dynamic impedance and good temperature sta-

bility. On-chip trimming is used to provide tight voltage toler-

ance. Since the LM-185-2.5 band-gap reference uses only

transistors and resistors, low noise and good long term

stability result.

Features

Careful design of the LM185-2.5 has made the device ex-

ceptionally tolerant of capacitive loading, making it easy to

use in almost any reference application. The wide dynamic

operating range allows its use with widely varying supplies

with excellent regulation.

20 mV ( 0.8%) max. initial tolerance (A grade)

n Operating current of 20 µA to 20 mA

n 0.6Ω dynamic impedance (A grade)

n Low temperature coefficient

n Low voltage reference—2.5V

n 1.2V device and adjustable device also

available—LM185-1.2 series and LM185 series,

respectively

The extremely low power drain of the LM185-2.5 makes it

useful for micropower circuitry. This voltage reference can be

used to make portable meters, regulators or general purpose

analog circuitry with battery life approaching shelf life. Fur-

ther, the wide operating current allows it to replace older

references with a tighter tolerance part. For applications

requiring 1.2V see LM185-1.2.

Connection Diagrams

TO-92

Plastic Package

SO Package

00551908

Bottom View

Order Number LM285Z-2.5,

LM285BXZ-2.5, LM285BYZ-2.5

LM385Z-2.5, LM385AXZ-2.5

LM385AYZ-2.5, LM385BZ-2.5,

LM385BXZ-2.5 or LM385BYZ-2.5

See NS Package Number Z03A

00551911

Order Number LM285M-2.5,

LM285BXM-2.5, LM285BYM-2.5

LM385M-2.5, LM385BM-2.5

LM385BXM-2.5 or LM385BYM-2.5

See NS Package Number M08A

SOT-23

00551929

* Pin 3 is attached to the Die Attach Pad (DAP) and should be connected to Pin 2 or left floating.

Order Number LM385M3-2.5

See NS Package Number MA03B

DS005519

www.national.com

12 3 4 5 6 7...13

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与LM185-2.5相关器件

型号	品牌	获取价格	描述	数据表
LM185-2.5 MD8	TI	获取价格	微功耗电压基准二极管 \| Y \| 0 \| -55 to 125
LM185-2.5MD8	NSC	获取价格	IC 1-OUTPUT TWO TERM VOLTAGE REFERENCE, 2.5 V, UUC, WAFER, Voltage Reference
LM185-2.5MD8	TI	获取价格	1-OUTPUT TWO TERM VOLTAGE REFERENCE, 2.5V, UUC, WAFER
LM185-2.5MW8	TI	获取价格	IC,VOLT REFERENCE,FIXED,2.5V,BIPOLAR,WAFER
LM185-2.5-N	TI	获取价格	LM185-2.5/LM285-2.5/LM385-2.5 Micropower Voltage Reference Diode
LM185-2.5-N_13	TI	获取价格	LM185-2.5-N/LM285-2.5-N/LM385-2.5-N Micropower Voltage Reference Diode
LM185-2.5QML	TI	获取价格	LM185-2.5QML Micropower Voltage Reference Diode
LM185-2.5QML-SP	TI	获取价格	航天级 QMLV 2.5V 并联电压基准
LM185-25	NSC	获取价格	Micropower Voltage Reference Diode
LM185-ADJ	TI	获取价格	LM185/LM285/LM385 Adjustable Micropower Voltage References

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