Advanced Monolithic Systems, Inc. 6680B Sierra Lane, Dublin, CA 94568 Phone (925) 556-9090 Fax (925) 556-9140
Advanced AMS1009
Monolithic VOLTAGE REFERENCE DIODE
Systems
FEATURES APPLICATIONS
• ± 5 mV ( ± 0.2%) Max. Initial Tolerance (A grade) • Power Supplies
• Wide Operating Current Range • Instrumentation
• Low Voltage Reference 2.5V • 8 Bit A/D, D/A Reference
• Max. 0.6 Ω Dynamic Impedance (A grade) • Current Loop Measurement and Control Systems
• Low Temperature Coefficient • Reference for 5V Systems
GENERAL DESCRIPTION
The AMS1009 is a precision band-gap voltage reference diode. This voltage reference features a very low dynamic impedance
and good temperature coefficient, operating over a wide current range of 400 µA to 10mA. On-chip trimming is used to
provide tight tolerance and minimize temperature drift. A third terminal allows the reference voltage to be adjusted to ±5% to
calibrate out system errors.
The AMS1009 is used as a precision 2.5V low voltage reference for digital voltmeters, power supplies or op amp circuitry,
and the 2.5V make it easy to obtain a stable reference from 5V logic supplies.
The AMS1009 is available in TO-92 and SO-8 packages operating over a 0 °C to 70 °C temperature range.
ORDERING INFORMATION:
TOL. PACKAGE TYPE OPERATING
TO-92 8 LEAD SOIC TEMPERATURE RANGE
± 5mV AMS1009AN AMS1009AS 0 to 70 ° C
± 10mV AMS1009BN AMS1009BS 0 to 70 ° C
PIN CONNECTIONS
TO-92 8L SOIC
Plastic Package (N) SO Package (S)
123
1 2
8
43
7 56
N/C ADJN/C
N/C N/C N/C
+
-
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