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 50 µA 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 50 µA 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.
ORDERING INFORMATION :
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 *
21
*This pin must be left floating
or connected to pin 2
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