AMS385 データシートの表示（PDF） - Advanced Monolithic Systems Inc

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AMS385

ADJUSTABLE MICROPOWER VOLTAGE REFERENCE DIODE

Advanced Monolithic Systems Inc 

Advanced

Monolithic

Systems

AMS285/AMS385

ADJUSTABLE MICROPOWER VOLTAGE REFERENCE DIODE

FEATURES

• Adjustable from 1.24V to 5.30V

• Operating Current 10µA to 20mA

• 1% and 2% Initial Tolerance

• 1Ω Dynamic Impedance

• Low Temperature Coefficient

• 1.2V Device and 2.5V Device also available

AMS285-1.2 and AMS285-2.5 series, respectively

AMS385-1.2 and AMS385-2.5 series.

APPLICATIONS

• Battery Powered Systems

• Instrumentation

• A/D, D/A Converters

• Temperature measurement

• Current sources

• Notebook/Personal Computer

• Monitors/ VCR/ TV

• Pagers

GENERAL DESCRIPTION

The AMS285/AMS385 are three-terminal micropower band-gap voltage reference diodes. They feature a very low dynamic

impedance and good temperature coefficient, operating from 1.24V to 5.3V and over a 10µA to 20mA current range. On-chip

trimming is used to provide tight voltage tolerance. Since the AMS285/AMS385 is a band-gap reference, uses only transistors

and resistors, low noise and good long-term stability result. Careful design of the AMS285/AMS385 has made the device

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 of the

AMS285/AMS385 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.

The AMS285 is operational in the full industrial temperature range of -40°C to 85°C while AMS385 is operating over a 0°C

to 70°C temperature range. The AMS285/AMS385 are available in TO-92, SO-8 and SOT-89 packages.

ORDERING INFORMATION:

TOL.

TO-92

±12mV

±25mV

±25mV

±12mV

±25mV

±25mV

AMS285AN

AMS285BN

AMS285CN

AMS385AN

AMS385BN

AMS385CN

PACKAGE TYPE

8 LEAD SOIC

AMS285AS

AMS285BS

AMS285CS

AMS385AS

AMS385BS

AMS385CS

SOT-89

AMS285AL

AMS285BL

AMS285CL

AMS385AL

AMS385BL

AMS385CL

OPERATING

TEMPERATURE RANGE

-40 to 85° C

-40 to 85° C

-40 to 85° C

0 to 70° C

0 to 70° C

0 to 70° C

Advanced Monolithic Systems, Inc. 6680B Sierra Lane, Dublin, CA 94568 Phone (925) 556-9090 Fax (925) 556-9140

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