LM285M-1.2,

更新时间： 2024-09-14 02:53:11

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
10页	292K
描述
Micropower Voltage Reference Diode

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LM285M-1.2, 数据手册

January 30, 2008

LM185-1.2/LM285-1.2/LM385-1.2

Micropower Voltage Reference Diode

The LM185-1.2 is rated for operation over a −55°C to 125°C

temperature range while the LM285-1.2 is rated −40°C to 85°

C and the LM385-1.2 0°C to 70°C. The LM185-1.2/LM285-1.2

are available in a hermetic TO-46 package and the

LM285-1.2/LM385-1.2 are also available in a low-cost TO-92

molded package, as well as SO and SOT-23. The LM185-1.2

is also available in a hermetic leadless chip carrier package.

General Description

The LM185-1.2/LM285-1.2/LM385-1.2 are micropower 2-ter-

minal band-gap voltage regulator diodes. Operating over a

10μA to 20mA current range, they feature exceptionally low

dynamic impedance and good temperature stability. On-chip

trimming is used to provide tight voltage tolerance. Since the

LM185-1.2 band-gap reference uses only transistors and re-

sistors, low noise and good long term stability result.

Features

Careful design of the LM185-1.2 has made the device excep-

tionally tolerant of capacitive loading, making it easy to use in

almost any reference application. The wide dynamic operat-

ing range allows its use with widely varying supplies with

excellent regulation.

±1% and 2% initial tolerance

■

Operating current of 10μA to 20mA

1Ω dynamic impedance

■

Low temperature coefficient

The extremely low power drain of the LM185-1.2 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.

Low voltage reference—1.235V

2.5V device and adjustable device also available

LM185-2.5 series and LM185 series, respectively

Further, the wide operating current allows it to replace older

references with a tighter tolerance part.

Connection Diagrams

T0-92

Plastic Package (Z)

SOT23

551833

* Pin 3 is attached to the Die Attach Pad (DAP) and should be connected to

Pin 2 or left floating.

551810

Bottom View

Order Number LM385M3-1.2

See NS Package Number MF03A

Order Number LM285Z-1.2,

LM285BXZ-1.2, LM285BYZ-1.2

LM385Z-1.2, LM385BZ-1.2

LM385BXZ-1.2 or LM385BYZ-1.2

See NS Package Number Z03A

SO Package

TO-46

Metal Can Package (H)

551806

Order Number LM28⁵5⁵M¹⁸⁰-⁹1.2,

LM285BXM-1.2, LM285BYM-1.2

LM385M-1.2, LM385BM-1.2

LM385BXM-1.2 or LM385BYM-1.2

See NS Package Number M08A

Bottom View

Order Number LM185H-1.2, LM185H-1.2/883,

LM185BXH-1.2, LM185BYH-1.2

LM285H-1.2 or LM285BXH-1.2

See NS Package Number H02A

5518

www.national.com

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与LM285M-1.2,相关器件

型号	品牌	获取价格	描述	数据表
LM285M-1.2/NOPB	TI	获取价格	LM185-1.2-N/LM285-1.2-N/LM385-1.2-N Micropower Voltage Reference Diode
LM285M-1.2/NOPB	NSC	获取价格	IC 1-OUTPUT TWO TERM VOLTAGE REFERENCE, 1.235 V, PDSO8, SO-8, Voltage Reference
LM285M-1.2X	TI	获取价格	暂无描述
LM285M-1.2X/NOPB	NSC	获取价格	1-OUTPUT TWO TERM VOLTAGE REFERENCE, 1.235V, PDSO8, LEAD FREE, SOP-8
LM285M-2.5	NSC	获取价格	Micropower Voltage Reference Diode
LM285M-2.5/NOPB	TI	获取价格	LM185-2.5-N/LM285-2.5-N/LM385-2.5-N Micropower Voltage Reference Diode
LM285M-2.5X	TI	获取价格	1-OUTPUT TWO TERM VOLTAGE REFERENCE, 2.5V, PDSO8, SOP-8
LM285M-25	TI	获取价格	LM185-2.5-N/LM285-2.5-N/LM385-2.5-N Micropower Voltage Reference Diode
LM285MX	TI	获取价格	LM185/LM285/LM385 Adjustable Micropower Voltage References
LM285MX/NOPB	TI	获取价格	LM185/LM285/LM385 Adjustable Micropower Voltage References

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