AMS285
器件描述：ADJUSTABLE MICROPOWER VOLTAGE REFERENCE DIODE
器件厂商：ADMOS [Advanced Monolithic Systems]
文件大小：78.62KB，共8页
Sponsor by e络盟器件资料摘要：
Advanced Monolithic Systems, Inc. 6680B Sierra Lane, Dublin, CA 94568 Phone (925) 556-9090 Fax (925) 556-9140
Advanced AMS285/AMS385
Monolithic ADJUSTABLE MICROPOWER VOLTAGE REFERENCE DIODE
Systems
FEATURES APPLICATIONS
• Adjustable from 1.24V to 5.30V • Battery Powered Systems
• Operating Current 10 µA to 20mA • Instrumentation
• 1% and 2% Initial Tolerance • A/D, D/A Converters
• 1 Ω Dynamic Impedance • Temperature measurement
• Low Temperature Coefficient • Current sources
• 1.2V Device and 2.5V Device also available • Notebook/Personal Computer
AMS285-1.2 and AMS285-2.5 series, respectively • Monitors/ VCR/ TV
AMS385-1.2 and AMS385-2.5 series. • 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 10 µ A 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. PACKAGE TYPE OPERATING
TO-92 8 LEAD SOIC SOT-89 TEMPERATURE RANGE
± 12mV AMS285AN AMS285AS AMS285AL -40 to 85 ° C
± 25mV AMS285BN AMS285BS AMS285BL -40 to 85 ° C
± 25mV AMS285CN AMS285CS AMS285CL -40 to 85 ° C
± 12mV AMS385AN AMS385AS AMS385AL 0 to 70 ° C
± 25mV AMS385BN AMS385BS AMS385BL 0 to 70 ° C
± 25mV AMS385CN AMS385CS AMS385CL 0 to 70 ° C
Advanced AMS285/AMS385
Monolithic ADJUSTABLE MICROPOWER VOLTAGE REFERENCE DIODE
Systems
FEATURES APPLICATIONS
• Adjustable from 1.24V to 5.30V • Battery Powered Systems
• Operating Current 10 µA to 20mA • Instrumentation
• 1% and 2% Initial Tolerance • A/D, D/A Converters
• 1 Ω Dynamic Impedance • Temperature measurement
• Low Temperature Coefficient • Current sources
• 1.2V Device and 2.5V Device also available • Notebook/Personal Computer
AMS285-1.2 and AMS285-2.5 series, respectively • Monitors/ VCR/ TV
AMS385-1.2 and AMS385-2.5 series. • 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 10 µ A 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. PACKAGE TYPE OPERATING
TO-92 8 LEAD SOIC SOT-89 TEMPERATURE RANGE
± 12mV AMS285AN AMS285AS AMS285AL -40 to 85 ° C
± 25mV AMS285BN AMS285BS AMS285BL -40 to 85 ° C
± 25mV AMS285CN AMS285CS AMS285CL -40 to 85 ° C
± 12mV AMS385AN AMS385AS AMS385AL 0 to 70 ° C
± 25mV AMS385BN AMS385BS AMS385BL 0 to 70 ° C
± 25mV AMS385CN AMS385CS AMS385CL 0 to 70 ° C