Advanced Monolithic Systems, Inc.

6680B Sierra Lane, Dublin, CA 94568 Phone (925) 556-9090 Fax (925) 556-9140

Advanced

AMS4041

Monolithic

MICROPOWER SHUNT VOLTAGE REFERENCE

Systems

FEATURES

APPLICATIONS

•• Tight Output Voltage Tolerance

•• Battery Powered Systems

•• Low Output Noise

•• Instrumentation

•• Operating Current 60µµA to 100mA

•• Energy Management

•• Low Dynamic Impedance

•• Automotive

•• Low Temperature Coefficient

•• Precision Audio Components

•• Available in the sub-miniature SOT-23 Package

•• Product Testing

•• 2.5V Device ( AMS4040) also available

•• Data Acquisition Systems

GENERAL DESCRIPTION

The AMS4041 is a two-terminal micropower band-gap voltage reference diode featuring a very low dynamic impedance and

good temperature coefficient, operating over a 60µA to 100mA current range. On-chip trimming is used to provide tight

voltage tolerance. Since the AMS4041 band-gap reference uses only transistors and resistors, low noise and good long term

stability result. The wide dynamic operating range allows its use with widely varying supplies with excellent regulation. The

extremely low power drain of the AMS4041 makes these reference diodes useful for micropower circuitry. These voltage

references can be used to make portable meters, regulators or general purpose analog circuitry with battery life approaching

shelf life.

The AMS4041 is operational in the full industrial temperature range of -40

°C to 85°and is available in small space saving

TO-92, SO-8, SOT-89 and SOT-23 packages.

TOL.

PACKAGE TYPE

OPERATING

TO-92

8 LEAD SOIC

SOT-89

3 LEAD SOT-23

TEMP. RANGE

±0.25%

AMS4041AN

AMS4041AS

AMS4041AL

AMS4041AM

-40 to +85

° C

±0.5%

AMS4041BN

AMS4041BS

AMS4041BL

AMS4041BM

-40 to +85

° C

±1.0%

AMS4041CN

AMS4041CS

AMS4041CL

AMS4041CM

-40 to +85

° C

PIN CONNECTIONS

TO-92

8L SOIC

SOT-89

3L SOT-23

Plastic Package (N)

SO Package (S)

(L)

(M)

1

2

3

-

+

N/C

N/C

N/C

N/C

N/C

N/C

N/C

+

-

1

2

8

4

3

7

5

6

1

2

3

+

-

3 *

2

1

*This pin must be left floating

or connected to pin 2

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