AMS285-12 查看數據表（PDF） - Advanced Monolithic Systems Inc

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AMS285-12

MICROPOWER VOLTAGE REFERENCE DIODE

Advanced Monolithic Systems Inc 

Advanced

Monolithic

Systems

AMS285-1.2/AMS385-1.2

MICROPOWER VOLTAGE REFERENCE DIODE

FEATURES

• ±4 mV (±0.3%) max. initial tolerance (A grade)

• Operating Current 10µA to 20mA

• Low Voltage Reference 1.235

• Max. 0.6Ω Dynamic Impedance (A grade)

• Low Temperature Coefficient

• 2.5V Device and Adjustable Device also available

AMS285-2.5 and AMS285 series, respectively

AMS385-2.5 and AMS385 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 AMS285-1.2/AMS385-1.2 are two-terminal micropower band-gap voltage reference diodes. They feature a very low

dynamic impedance and good temperature coefficient, operating over a 10µA to 20mA current range. On-chip trimming is

used to provide tight voltage tolerance. Since the AMS285-1.2/AMS385-1.2 is a band-gap reference, uses only transistors and

resistors, low noise and good long-term stability result. Careful design of the AMS285-1.2/AMS385-1.2 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

AMS285-1.2/AMS385-1.2 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 AMS285-1.2 is operational in the full industrial temperature range of -40°C to 85°C while AMS385-1.2 is operating

over a 0°C to 70°C temperature range. The AMS285-1.2/AMS385-1.2 are available in TO-92, SO-8 and SOT-89 packages.

ORDERING INFORMATION:

TOL.

TO-92

±4mV AMS285-1.2AN

±12mV AMS285-1.2BN

±25mV AMS285-1.2CN

±4mV AMS385-1.2AN

±12mV AMS385-1.2BN

±25mV AMS385-1.2CN

PACKAGE TYPE

8 LEAD SOIC

AMS285-1.2AS

AMS285-1.2BS

AMS285-1.2CS

AMS385-1.2AS

AMS385-1.2BS

AMS385-1.2CS

SOT-89

AMS285-1.2AL

AMS285-1.2BL

AMS285-1.2CL

AMS385-1.2AL

AMS385-1.2BL

AMS385-1.2CL

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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