LM385BM-2.5 National Semiconductor, LM385BM-2.5 Datasheet

LM385BM-2.5

Manufacturer Part Number

LM385BM-2.5

Description

Voltage Reference

Manufacturer

National Semiconductor

Datasheets

1.LM385BM-2.5.pdf (10 pages)

2.LM285BXZ-2.5.pdf (14 pages)

Specifications of LM385BM-2.5

Peak Reflow Compatible (260 C)

Current Rating

10A

Leaded Process Compatible

Mounting Type

Surface Mount

Supply Current

10mA

Package / Case

8-NSOIC

Lead Free Status / RoHS Status

Contains lead / RoHS non-compliant

Available stocks

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Price

Company:

Bonase Electronics (HK) Co., Limited

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Quantity:

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BOSTOCK HK LIMITED

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Meier Automation Equipment Co., Limited

Part Number:

LM385BM-2.5

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NS/国半

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Company:

Bonase Electronics (HK) Co., Limited

Part Number:

LM385BM-2.5/NOPB

Manufacturer:

NS/TI

Quantity:

100

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LM185-1.2/LM285-1.2/LM385-1.2

Micropower Voltage Reference Diode

General Description

The

2-terminal band-gap voltage regulator diodes. Operating

over a 10 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 LM185-1.2 band-gap reference uses only transis-

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

sult.

Careful design of the LM185-1.2 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.

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.

Further, the wide operating current allows it to replace older

references with a tighter tolerance part.

Connection Diagrams

LM185-1.2/LM285-1.2/LM385-1.2

LM385BXZ-1.2 or LM385BYZ-1.2

See NS Package Number Z03A

LM285BXZ-1.2, LM285BYZ-1.2

Order Number LM285Z-1.2,

LM385Z-1.2, LM385BZ-1.2

Plastic Package (Z)

Bottom View

T0-92

DS005518-10

DS005518

are

micropower

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 car-

rier package.

Features

n Operating current of 10 µA to 20 mA

n 0.6

n Low temperature coefficient

n Low voltage reference — 1.235V

n 2.5V device and adjustable device also available

n LM185-2.5 series and LM185 series, respectively

to Pin 2 or left floating.

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

4 mV (

max dynamic impedance (A grade)

See NS Package Number MA03B

0.3%) max. initial tolerance (A grade)

Order Number LM385M3-1.2

SOT23

DS005518-33

January 2000

www.national.com

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