Datasheet > LM285BYMX-2.5

LM285BYMX-2.5

更新时间： 2024-11-05 23:46:51

品牌	Logo	应用领域
其他 - ETC		光电二极管
页数	文件大小	规格书
14页	289K
描述
Voltage Reference

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数据手册

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LM285BYMX-2.5 数据手册

December 1999

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 car-

rier 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 exception-

ally low dynamic impedance and good temperature stability.

On-chip trimming is used to provide tight voltage tolerance.

Since the LM-185-2.5 band-gap reference uses only transis-

tors and resistors, low noise and good long term stability re-

sult.

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 ref-

erences with a tighter tolerance part. For applications requir-

ing 1.2V see LM185-1.2.

Connection Diagrams

TO-92

SO Package

Plastic Package

DS005519-8

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

DS005519-11

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

DS005519-29

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...14

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与LM285BYMX-2.5相关器件

型号	品牌	获取价格	描述	数据表
LM285BYMX-2.5/NOPB	TI	获取价格	LM185-2.5-N/LM285-2.5-N/LM385-2.5-N Micropower Voltage Reference Diode
LM285BYMX-2.5-NOPB	TI	获取价格	LM185-2.5-N/LM285-2.5-N/LM385-2.5-N Micropower Voltage Reference Diode
LM285BYMX-25	TI	获取价格	LM185-2.5-N/LM285-2.5-N/LM385-2.5-N Micropower Voltage Reference Diode
LM285BYZ	NSC	获取价格	Adjustable Micropower Voltage References
LM285BYZ	TI	获取价格	LM185/LM285/LM385 Adjustable Micropower Voltage References
LM285BYZ/NOPB	TI	获取价格	LM185/LM285/LM385 Adjustable Micropower Voltage References
LM285BYZ-1.2	NSC	获取价格	Micropower Voltage Reference Diode
LM285BYZ-1.2/NOPB	TI	获取价格	1-OUTPUT TWO TERM VOLTAGE REFERENCE, 1.235V, PBCY3, PLASTIC, TO-92, 3 PIN
LM285BYZ-1.2/NOPB	ROCHESTER	获取价格	1-OUTPUT TWO TERM VOLTAGE REFERENCE, 1.235V, PBCY3, PLASTIC, TO-92, 3 PIN
LM285BYZ-1.2X	TI	获取价格	1-OUTPUT TWO TERM VOLTAGE REFERENCE, 1.235V, PBCY3, PLASTIC, TO-92, 3 PIN

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