Advanced Monolithic Systems, Inc.

www.advanced-monolithic.com

Phone (925) 443-0722

Fax (925) 443-0723

Advanced

AMS3100A-2.5

Monolithic

MICROPOWER VOLTAGE REFERENCE

Systems

FEATURES

APPLICATIONS

•• ±12 mV (±0.5%) max. initial tolerance (A grade)

•• Battery Powered Systems

•• Operating Current 20µµA to 20mA

•• Instrumentation

•• Low Voltage Reference 2.50V

•• A/D, D/A Converters

•• Max. 0.5Ω

Ω Dynamic Impedance (A grade)

•• Temperature measurement

•• Low Temperature Coefficient

•• Current sources

•• SOT-23 Package Available

•• Notebook/Personal Computer

•• ±5% Output Voltage Precission Trimming

•• Monitors/ VCR/ TV

•• Low cost

•• Pagers

GENERAL DESCRIPTION

The AMS3100A-2.5 are two-terminal micropower band-gap voltage reference that feature a very low dynamic impedance and

good temperature coefficient, operating over a 20µA to 20mA current range. AMS3100A-2.5 is trimmed at wafer test level to

optimize the temperature coefficient and tight output voltage tolerance. The advanced process technology used, makes the

AMS3100A-2.5 exceptionally 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, 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. Further more, the wide

operating current allows it to replace older references with a tight tolerance part. A third terminal allows the reference voltage

to be adjusted to

±5% to calibrate out system errors.

The AMS3100A-2.5 is operating over a -40

°C to 85°C temperature range and is available in the space saving SOT-23

package.

TOL.

PACKAGE TYPE

OPERATING

SOT-23

TEMPERATURE RANGE

±

12mV

AMS3100A-2.5AM

-40

°C to 85°C

±

25mV

AMS3100A-2.5BM

-40

°C to 85°C

±

25mV

AMS3100A-2.5CM

-40

°C to 85°C

PIN CONNECTIONS

3L SOT-23

(M)

A

+

3

-

2

1

Top View

A = Adjust pin.