Advanced Monolithic Systems, Inc.

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

Advanced

AMS124

Monolithic

MICROPOWER SHUNT VOLTAGE REFERENCE

Systems

FEATURES

APPLICATIONS

•• Low Temperature Coefficient

•• Battery Powered Systems

•• Low Output Noise

•• Instrumentation

•• Operating Current 50µµA to 4mA

•• Energy Management

•• Low Dynamic Impedance

•• Product Testing

•• Tight Output Voltage Tolerance

•• Precision Audio Components

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

•• Data Acquisition Systems

GENERAL DESCRIPTION

The AMS124 is a two-terminal micropower band-gap voltage reference diode featuring low dynamic impedance and good

temperature coefficient, operating over a 50µA to 4mA current range. On-chip trimming is used to provide tight voltage

tolerance. Since the AMS124 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. These voltage

references can be used to make portable meters, regulators or general purpose analog circuitry.

The AMS124 is operational in the full industrial temperature range of -40

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

SOT-23 package.

MAX.

PACKAGE TYPE

OPERATING

TEMPCO

3 LEAD SOT-23

TEMP. RANGE

50ppm/

°C

AMS124AM

-40 to +85

°C

100ppm/

°C AMS124BM

-40 to +85

°C

PIN CONNECTIONS

3L SOT-23

(M)

+

-

3 *

2

1

*This pin must be left floating

or connected to pin 2

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