AMS3100-2.5 MICROPOWER VOLTAGE REFERENCE APPLICATIONS B
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(±0.5%) max. initial tolerance grade) Operating Current 20µA 20mA Voltage Reference 2.50V Max. Dynamic Impedance grade) Temperature Coefficient SOT-23 Package Available cost
AMS3100-2.5
MICROPOWER VOLTAGE REFERENCE
APPLICATIONS
Battery Powered Systems Instrumentation A/D, Converters Temperature measurement Current sources Notebook/Personal Computer Monitors/ VCR/ Pagers
GENERAL DESCRIPTION
AMS3100-2.5 two-terminal micropower band-gap voltage reference that feature very dynamic impedance good temperature coefficient, operating over 20µA 20mA current range. AMS3100-2.5 trimmed wafer test level optimize temperature coefficient tight output voltage tolerance. advanced process technology used, makes AMS3100-2.5 exceptionally tolerant capacitive loading, making easy almost reference application. wide dynamic operating range allows with widely varying supplies with excellent regulation. extremely power drain, makes these reference diodes useful micropower circuitry. These voltage references used make portable meters, regulators general purpose analog circuitry with battery life approaching shelf life. Further more, wide operating current allows replace older references with tight tolerance part. compatible with other standard industry references, AMS3100-2.5 offers advantage long term stability cost. AMS3100-2.5 operating over -40°C 85°C temperature range available space saving SOT-23 package.
ORDERING INFORMATION:
TOL. PACKAGE TYPE OPERATING TEMPERATURE RANGE -40°C 85°C -40°C 85°C -40°C 85°C
SOT-23 ±12mV AMS3100-2.5AM ±25mV AMS3100-2.5BM ±50mV AMS3100-2.5CM
CONNECTIONS
SOT-23
*This must left floating connected
View Advanced Monolithic Systems, Inc. www.advanced-monolithic.com Phone (925) 443-0722 (925) 443-0723
AMS3100-2.5
ABSOLUTE MAXIMUM RATINGS
Reverse Current Forward Current Operating Temperature Range Storage temperature 30mA 10mA -40°C 85°C -55°C +150°C Lead Temperature Vapor phase sec) Infrared sec.) Thermal Resistance (JA) 215°C 220°C 410°C/W
ELECTRICAL CHARACTERISTICS
Electrical Characteristics +25°C unless otherwise specified. Parameter Conditions
=20Hz 10µA 20mA 0.60
AMS3100A-2.5
2.500 2.512
AMS3100B-2.5
2.500 2.525
AMS3100C-2.5
2.450 2.500 2.550
Units
Reverse Breakdown Voltage (Note Reverse Dynamic Impedance (Note Reverse Breakdown Voltage Change with current (Note Min. Operating Current (Note Wide Band Noise (Note Temperature Coeff. (Note Long Term Stability (Note
2.488
2.475
10Hz 10kHz
ppm/°C
TA=25°C±.1°C 1000
Note Absolute Maximum Ratings indicate limits beyond which damage device occur. Operating Ratings indicate conditions which device intended functional, guarantee specific performance limits. guaranteed specifications test conditions, Electrical Characteristics. guaranteed specifications apply only test conditions listed. Note Parameters identified with boldface type apply temperature extremes. other numbers apply 25°C. Note Guaranteed 100% production tested Note Guaranteed 100% production tested. These limits used calculate average outgoing quality levels. Note average temperature coefficient defined maximum deviation reference voltage measured temperatures between operating TMAX TMIN, divided TMAX TMIN. measured temperatures -40°C, 25°C 85°C.
TYPICAL APPLICATIONS
Wide Input Range Reference Micropower Reference from Battery
3.7V
200k LM334 2.5V 3.3k AMS3100-2.5 2.5V AMS3100-2.5
Advanced Monolithic Systems, Inc.
www.advanced-monolithic.com
Phone (925) 443-0722
(925) 443-0723
AMS3100-2.5
TYPICAL APPLICATIONS (Continued)
100°C Thermometer 100°C Thermometer
0-100µA IOUT AMS3100-2.5
0-50µA IOUT AMS3100-2.5
LM334
LM334
Calibration Short AMS3100-2.5, adjust IOUT temp 1µA/°K Remove short, adjust correct reading
Calibration Short AMS3100-2.5, adjust IOUT temp 1.8µA/°K Remove short, adjust correct reading
Micropower* Regulator
LM334 2.2k LM4250C 100mA 150pF 100k 4.7µF TANTALUM 2N2905 5.2V
Micropower* Reference
500k LM4250C 150pF 1.5M
1N457 1N457
500k AMS3100-2.5
AMS3100-2.5
100k
40µA
20µA standby current
Advanced Monolithic Systems, Inc.
www.advanced-monolithic.com
Phone (925) 443-0722
(925) 443-0723
AMS3100-2.5
TYPICAL APPLICATIONS (Continued)
Micropower Thermocouple Cold Junction Compensator
LM334
LITHIUM ZERO 100k
Adjustment Procedure
AMS3100-2.5
Adjust until voltage across equals Kelvin temperature multiplied thermocouple Seebeck coefficient. Adjust ZERO until voltage across equals thermocouple Seebeck coefficient multiplied 273.2. Thermocouple Type Seebeck Coefficient (mV/ 52.3 42.8 40.8 Voltage Voltage Across Across 25°C (mV) (mV) 1.24k 15.60 12.77 12.17 1.908 14.32 11.78 11.17 1.766
THERMOCOUPLE COLD JUNCTION THERMAL WITH LM334 METER
63.4
Typical supply current 50µA
Precision Current Sources
AMS3100-2.5
AMS3100-2.5
150pF LM312 IOUT* -1.5V -27V -30V IOUT* 1.5V 150pF LM312
*IOUT =2.5V/R2
Advanced Monolithic Systems, Inc.
www.advanced-monolithic.com
Phone (925) 443-0722
(925) 443-0723
AMS3100-2.5
TYPICAL PERFORMANCE CHARACTERISTICS
Reverse Characteristics OUTPUT VOLTAGE CHANGE (mV) 0.01 REVERSE CURRENT (mA)
=-40°
Reverse Characteristics REVERSE CURRENT (µA) FORWARD VOLTAGE
Forward Characteristics
=85°
=-40°
=85° =-40°
=25°
=25°
=25°
=85°
REVERSE VOLTAGE Temperature Drift 2.530 REFERENCE VOLTAGE DYNAMIC IMPEDANCE 2.520 2.510 2.500 2.490 2.480 2.470 2.460 2.450 TEMPERATURE Noise Voltage 1400
SINGLE POLE PASS
0.01 FORWARD CURRENT (mA)
Reverse Dynamic Impedance 1000 DYNAMIC IMPEDANCE
Reverse Dynamic Impedance
=25°
=85° =-40°
=25°
0.01 REVERSE CURRENT (mA)
100k FREQUENCY (Hz)
Filtered Output Noise INTEGRATED NOISE
AMS3100-2.5 OUTPUT
Response Time
OUTPUT
1200 VOLTAGE SWING FREQUENCY (Hz) 100k NOISE (nV/Hz)
100µA
INPUT 100k OUTPUT
1000
SHARP CUTOFF FILTER
INPUT
100k CUTOFF FREQUENCY (Hz)
TIME (µs)
Advanced Monolithic Systems, Inc.
www.advanced-monolithic.com
Phone (925) 443-0722
(925) 443-0723
AMS3100-2.5
PACKAGE DIMENSIONS inches (millimeters) unless otherwise noted.
LEAD SOT-23 PLASTIC PACKAGE
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)
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) 0.018-0.024 (0.457-0.610)
(SOT-23 DRW# 051991
Advanced Monolithic Systems, Inc.
www.advanced-monolithic.com
Phone (925) 443-0722
(925) 443-0723
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