LM185H-2.5 National Semiconductor, LM185H-2.5 Datasheet

LM185H-2.5

Manufacturer Part Number

LM185H-2.5

Description

IC, VOLT REF, ADJ, MICROPWR, 3TO46

Manufacturer

National Semiconductor

Type

Voltage Referencer

Datasheets

1.LM185H-2.5.pdf (14 pages)

2.LM185H-2.5.pdf (5 pages)

Specifications of LM185H-2.5

Topology

Shunt

Reference Voltage Tolerance

38mV

Voltage Reference Case Style

TO-46

No. Of Pins

Operating Temperature Range

-55Â°C To +125Â°C

Svhc

No SVHC

Temperature Coefficient

150ppm/Â°C

Current, Output

10 mA

Current, Supply

10 μA to 20 mA

Package Type

TO-46

Resistance, Thermal, Junction To Case

80 °C/W

Temperature, Operating, Maximum

+125 °C

Temperature, Operating, Minimum

-55 °C

Temperature, Operating, Range

-55 to +125 °C

Voltage, Noise

50 μV

Voltage, Output

2.5 V

Reference Voltage

2.5V

Rohs Compliant

Yes

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

BOSTOCK HK LIMITED

Part Number:

LM185H-2.5/883

Manufacturer:

RECTIFIER

Quantity:

8 500

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

LM185H-2.5/883C

Manufacturer:

Quantity:

Current page: 1 of 5
Download datasheet (239Kb)

LM185/LM285/LM385

Adjustable Micropower Voltage References

General Description

The LM185/LM285/LM385 are micropower 3-terminal ad-

justable band-gap voltage reference diodes. Operating from

1.24 to 5.3V and over a 10μA to 20mA current range, they

feature exceptionally low dynamic impedance and good tem-

perature stability. On-chip trimming is used to provide tight

voltage tolerance. Since the LM185 band-gap reference uses

only transistors and resistors, low noise and good long-term

stability result.

Careful design of the LM185 has made the device tolerant of

capacitive loading, making it easy to use in almost any refer-

ence application. The wide dynamic operating range allows

its use with widely varying supplies with excellent regulation.

The extremely low power drain of the LM185 makes it useful

for micropower circuitry. This voltage reference can be used

to make portable meters, regulators or general purpose ana-

log circuitry with battery life approaching shelf life. Further, the

Connection Diagrams

Plastic Package

SOIC Package

Bottom View

Top View

TO-92

525009

525010

wide operating current allows it to replace older references

with a tighter tolerance part.

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

perature range, while the LM285 is rated −40°C to 85°C and

the LM385 0°C to 70°C. The LM185 is available in a hermetic

TO-46 package and a leadless chip carrier package, while the

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

package, as well as S.O.

Features

■

Adjustable from 1.24V to 5.30V

Operating current of 10μA to 20mA

1% and 2% initial tolerance

1Ω dynamic impedance

Low temperature coefficient

20-Leadless Chip Carrier

Metal Can Package

Bottom View

Top View

TO-46

525001

525015

Related parts for LM185H-2.5

LM185H-2.5 Summary of contents

Page 1

LM185/LM285/LM385 Adjustable Micropower Voltage References General Description The LM185/LM285/LM385 are micropower 3-terminal ad- justable band-gap voltage reference diodes. Operating from 1.24 to 5.3V and over a 10μA to 20mA current range, they feature exceptionally low dynamic impedance and good tem- ...

Page 2

Ordering Information Package −55°C to 125°C −40°C to 85°C LM185BH LM185BH/883 TO-46 LM185BYH LM185BYH/883 TO-92 8-Pin SOIC 20-Leadless Chip LM185BE/883 Carrier Block Diagram Typical Applications 1.2V Reference Temperature Range 0°C to 70°C LM285BXZ LM285BYZ LM285Z LM285M LM285BYM 525013 525014 2 ...

Page 3

... Absolute Maximum Ratings If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. (Note 2) Reverse Current Forward Current Operating Temperature Range (Note 3) LM185 Series LM285 Series LM385 Series Electrical Characteristics Parameter Conditions = 100μA ...

Page 4

Parameter Conditions = 100μA Average X Suffix I R Temperature Coefficient Y Suffix (Note 7) All Others = 100μ 1000 Long Term I R Stability Hr 25°C ± 0.1°C A Note 1: Absolute Maximum Ratings indicate ...

Page 5

Physical Dimensions inches (millimeters) unless otherwise noted 20-Leadless Chip Carrier (E) NS Package Number E20A TO-46 Metal Can Package (H) NS Package Number H03H 11 ...

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