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| Advanced Monolithic Systems FEATURES * 12 mV (0.5%) max. initial tolerance (A grade) * Operating Current 20A to 20mA * Low Voltage Reference 2.50V * Max. 0.5 Dynamic Impedance (A grade) * Low Temperature Coefficient * SOT-23 Package Available * 5% Output Voltage Precission Trimming * Low cost AMS3100A-2.5 MICROPOWER VOLTAGE REFERENCE APPLICATIONS * Battery Powered Systems * Instrumentation * A/D, D/A Converters * Temperature measurement * Current sources * Notebook/Personal Computer * Monitors/ VCR/ TV * Pagers GENERAL DESCRIPTION The AMS3100A-2.5 are two-terminal micropower band-gap voltage reference that feature a very low dynamic impedance and good temperature coefficient, operating over a 20A to 20mA current range. AMS3100A-2.5 is trimmed at wafer test level to optimize the temperature coefficient and tight output voltage tolerance. The advanced process technology used, makes the AMS3100A-2.5 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, 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. A third terminal allows the reference voltage to be adjusted to 5% to calibrate out system errors. The AMS3100A-2.5 is operating over a -40C to 85C temperature range and is available in the space saving SOT-23 package. ORDERING INFORMATION: TOL. PACKAGE TYPE OPERATING TEMPERATURE RANGE -40C to 85C -40C to 85C -40C to 85C SOT-23 12mV AMS3100A-2.5AM 25mV AMS3100A-2.5BM 25mV AMS3100A-2.5CM PIN CONNECTIONS 3L SOT-23 (M) 3 - 1 A 2 + A = Adjust pin. Top View Advanced Monolithic Systems, Inc. www.advanced-monolithic.com Phone (925) 443-0722 Fax (925) 443-0723 AMS3100-2.5 ABSOLUTE MAXIMUM RATINGS Reverse Current Forward Current Operating Temperature Range Storage temperature 30mA 10mA -40C to 85C -55C to +150C Lead Temperature Vapor phase (60 sec) Infrared (15 sec.) Thermal Resistance (JA) 215C 220C 410C/W ELECTRICAL CHARACTERISTICS Electrical Characteristics at IR = 100 A, and TA = +25C unless otherwise specified. Parameter Conditions IR - 100 A IR - 100 A, f =20Hz 10A IR 1mA 1mA IR 20mA 0.2 1.0 10 12 20 25 13 0.60 1 1.0 10 20 30 13 1 2.0 20 20 30 mV Min AMS3100A-2.5 Typ Max 2.500 2.512 Min AMS3100B-2.5 Typ Max 2.500 2.525 AMS3100C-2.5 Min Typ Max 2.450 2.500 2.550 Units V Reverse Breakdown Voltage (Note 3) Reverse Dynamic Impedance (Note 3) Reverse Breakdown Voltage Change with current (Note 3) Min. Operating Current (Note 3) Wide Band Noise (Note 4) Temperature Coeff. (Note 5) Long Term Stability (Note 4) 2.488 2.475 A A V IR - 100 A, 10Hz f 10kHz 120 120 120 25 50 100 150 ppm/C TA=25C.1C T = 1000 Hr 20 20 20 ppm Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is intended to be functional, but do not guarantee specific performance limits. For guaranteed specifications and test conditions, see the Electrical Characteristics. The guaranteed specifications apply only for the test conditions listed. Note 2: Parameters identified with boldface type apply at temperature extremes. All other numbers apply at TA = TJ = 25C. Note 3: Guaranteed and 100% production tested Note 4:. Guaranteed but not 100% production tested. These limits are not used to calculate average outgoing quality levels. Note 5: The average temperature coefficient is defined as the maximum deviation of reference voltage at all measured temperatures between the operating TMAX and TMIN, divided by TMAX - TMIN. The measured temperatures are -40C, 25C and 85C. TYPICAL APPLICATIONS 2.5V Reference VIN= 5V TO 35V Wide Supply Range, Adjustable Reference +3.6V TO +40V V+ LM334 3.6k OUTPUT AMS1009 10k* TRIM V- R 62 OUTPUT AMS1009 10k *Does not affect Temperature Coefficient Advanced Monolithic Systems, Inc. www.advanced-monolithic.com Phone (925) 443-0722 Fax (925) 443-0723 AMS3100-2.5 TYPICAL PERFORMANCE CHARACTERISTICS Reverse Characteristics OUTPUT VOLTAGE CHANGE (mV) 16 12 8 4 0 -4 0.01 0.1 1 10 REVERSE CURRENT (mA) 100 TA =-40 C Reverse Characteristics 100 REVERSE CURRENT ( A) 1.6 FORWARD VOLTAGE (V) Forward Characteristics TA =85 C 1.2 TA =-40 C 10 TA =25 C TA =85 C TA =-40 C 0.8 TA =25 C 1 TA =25 C 0.4 TA =85 C 0.1 0 0.5 1.0 1.5 2.0 2.5 REVERSE VOLTAGE (V) Temperature Drift 2.530 REFERENCE VOLTAGE (V) 2.520 2.510 2.500 2.490 2.480 2.470 2.460 2.450 -55 -35 -15 5 25 45 65 85 105 125 TEMPERATURE ( C) Noise Voltage 1400 IR= 100A SINGLE POLE LOW PASS IR= 100A 0 3.0 0.01 0.1 1 10 100 FORWARD CURRENT (mA) Reverse Dynamic Impedance 1000 DYNAMIC IMPEDANCE ( ) Reverse Dynamic Impedance 10k DYNAMIC IMPEDANCE ( ) IR= 100A TA =25 C IR= 100A 100 TA =85 C 1k 100 10 10 TA =-40 C 1 TA =25 C 1 0.1 10 100 10k 100k 1k FREQUENCY (Hz) 1M 0.1 0.01 0.1 1 10 REVERSE CURRENT (mA) 100 Filtered Output Noise 120 INTEGRATED NOISE (V) 100 80 60 AMS3100A-2.5 OUTPUT Response Time 3.0 OUTPUT 1200 NOISE (nV/Hz) 100A 1000 800 600 400 200 0 10 100 1k 10k FREQUENCY (Hz) 100k VOLTAGE SWING (V) 2.0 1.0 0 10 0 0 INPUT 100k OUTPUT 40 20 0 100 SHARP CUTOFF FILTER ~ ~ INPUT ~ ~ 1k 10k 100k CUTOFF FREQUENCY (Hz) 200 400 TIME (s) 600 Advanced Monolithic Systems, Inc. www.advanced-monolithic.com Phone (925) 443-0722 Fax (925) 443-0723 AMS3100-2.5 PACKAGE DIMENSIONS inches (millimeters) unless otherwise noted. 3 LEAD SOT-23 PLASTIC PACKAGE (M) 0.110-0.120 (2.794-3.048) 0.015-0.017 (0.381-0.432) 0.083-0.098 (2.108-2.489) 0.047-0.055 (1.194-1.397) 0.035-0.040 (0.889-1.016) 0.018-0.024 (0.457-0.610) 10 NOM 0.035-0.041 (0.089-1.041) 0.0034-0.0050 (0.086-0.127) 0.0005-0.0040 (0.013-0.102) 0.070-0.080 (1.778-2.032) 10 NOM 0.018-0.024 (0.457-0.610) (SOT-23 ) AMS DRW# 051991 Advanced Monolithic Systems, Inc. www.advanced-monolithic.com Phone (925) 443-0722 Fax (925) 443-0723 |
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