AMS1004-1.2 MICROPOWER VOLTAGE REFERENCE APPLICATIONS B
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(±0.3%) max. initial tolerance grade) Operating Current 10µA 20mA Voltage Reference 1.235V Max. Dynamic Impedance grade) Temperature Coefficient 2.5V Device also available, AMS1004-2.5
AMS1004-1.2
MICROPOWER VOLTAGE REFERENCE
APPLICATIONS
Battery Powered Systems Instrumentation A/D, Converters Temperature measurement Current sources Notebook/Personal Computer Monitors/ VCR/ Pagers
GENERAL DESCRIPTION
AMS1004-1.2 two-terminal micropower band-gap voltage reference diode. features very dynamic impedance good temperature coefficient, operating over 10µA 20mA current range. On-chip trimming used provide tight voltage tolerance. Since AMS1004-1.2 band-gap reference, uses only transistors resistors, noise good long term stability result. Careful design AMS1004-1.2 made device exceptionally tolerant capacitive loading, making easy almost reference application. wide dynamic operating range allows with widely varying supplies with excellent regulation. extremely power drain AMS1004-1.2 makes these reference diodes useful micropower circuitry. This voltage reference 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, making attractive systems where accuracy previously obtained expense power consumption trimming. AMS1004-1.2 operational over temperature range 70°C available TO-92, SO-8 SOT-89 packages. extended temperature range contact factory.
ORDERING INFORMATION:
TOL. TO-92 ±4mV AMS1004-1.2AN ±15mV AMS1004-1.2BN PACKAGE TYPE LEAD SOIC AMS1004-1.2AS AMS1004-1.2BS SOT-89 AMS1004-1.2AL AMS1004-1.2BL OPERATING TEMPERATURE RANGE
Advanced Monolithic Systems, Inc.
www.advanced-monolithic.com
Phone (925) 443-0722
(925) 443-0723
AMS1004-1.2
ABSOLUTE MAXIMUM RATINGS
Reverse Current Forward Current Operating Temperature Range 30mA 10mA 70°C Storage temperature Soldering information TO-92 package: sec. SOIC package: Vapor phase sec) Infrared sec.) SOT-89 package: sec. -55°C +150°C 260°C 215°C 220°C 265°C
ELECTRICAL CHARACTERISTICS
Electrical Characteristics +25°C unless otherwise specified. Parameter
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 TA=25°C±.1°C 1000 10Hz 10kHz
Conditions
20Hz 10µA 20mA
1.231
AMS1004A-1.2
1.235 1.239 0.60
1.220
AMS1004B-1.2
1.235 1.250
Units
ppm/°C
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 elevated temperature operation, +100°C
Thermal Resistance
(junction ambient)
TO-92
170°C/W (0.125" leads)
SO-8
165°C/W
SOT-89
160°C/W
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 0°C, 25°C, 70°C.
Advanced Monolithic Systems, Inc.
www.advanced-monolithic.com
Phone (925) 443-0722
(925) 443-0723
AMS1004-1.2
CONNECTIONS
TO-92 Plastic Package SO-8 Package
SOT-89
Bottom View
View
View
TYPICAL APPLICATIONS
Wide Input Range Reference Micropower Reference from Battery Reference from 1.5V Battery
2.3V
1.5V
500k LM334 1.2V 4.3k AMS1004-1.2 1.24V AMS1004-1.2
1.2V AMS1004-1.2
Micropower Thermocouple Cold Junction Compensator
LM334
5.1k
Adjustment Procedure
MERCURY CELL 1.345V AMS1004-1.2
ZERO 100k
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
Advanced Monolithic Systems, Inc.
www.advanced-monolithic.com
Phone (925) 443-0722
(925) 443-0723
AMS1004-1.2
TYPICAL APPLICATIONS (Continued)
100°C Thermometer Lower Power Thermometer 100°C Thermometer
1.6V
0-100µA IOUT AMS1004-1.2
LM334
AMS1004-1.2
0-50µA IOUT
AMS1004-1.2
LM334
1.5V (1.3-1.6V)
LM334
1.3-1.6V
2N3638 2N2907 select inverse Select operation 1.3V 600µA
Calibration Short AMS1004-1.2, adjust IOUT temp 1µA/°K Remove short, adjust correct reading 1.3V 1.6V 2.4mA
Calibration Short AMS1004-1.2, adjust IOUT temp 1.8µA/°K Remove short, adjust correct reading
Centigrade Thermometer
Micropower* Reference
2.2k
LM334 V1.5V
2.3k
LM4250C 150pF 3.5M
OUTPUT 1mV/°
1.2k
AMS1004-1.2
AMS1004-1.2
500k
Calibration Adjust that temp 1mV/°K. Adjust 273.2mV. 1.3V 1.6V battery voltage 50µA 150µA
20µA standby current
Advanced Monolithic Systems, Inc.
www.advanced-monolithic.com
Phone (925) 443-0722
(925) 443-0723
AMS1004-1.2
TYPICAL PERFORMANCE CHARACTERISTICS
Reverse Characteristics OUTPUT VOLTAGE CHANGE (mV) 0.01 REVERSE CURRENT (mA)
=25° =-55°
Reverse Characteristics REVERSE CURRENT (µA) FORWARD VOLTAGE
Forward Characteristics
=125°
=-55°
=125° =-55°
=25°
=25° =125°
REVERSE VOLTAGE Temperature Drift Representative Units 1.260 DYNAMIC IMPEDANCE REFERENCE VOLTAGE
0.01 FORWARD CURRENT (mA)
Reverse Dynamic Impedance DYNAMIC IMPEDANCE
Reverse Dynamic Impedance
=25°
1.250
=125°
1.240
=-55°
=25°
1.230
1.220 TEMPERATURE Noise Voltage
0.01 REVERSE CURRENT (mA)
100k FREQUENCY (Hz)
Filtered Output Noise
Response Time
INTEGRATED NOISE (µV)
100µA
VOLTAGE SWING
SINGLE POLE PASS
NOISE (nV/Hz)
OUTPUT INPUT 100k OUTPUT
OUTPUT
INPUT
SHARP CUTOFF FILTER
FREQUENCY (Hz) 100k TIME (µs)
100k CUTOFF FREQUENCY (Hz)
Advanced Monolithic Systems, Inc.
www.advanced-monolithic.com
Phone (925) 443-0722
(925) 443-0723
AMS1004-1.2
PACKAGE DIMENSIONS inches (millimeters) unless otherwise noted.
LEAD TO-92 PLASTIC PACKAGE
0.060±0.005 (1.524±0.127)
0.180±0.005 (4.572±0.127) 0.060±0.010 (1.524±0.254) 0.140±0.010 (3.556±0.127)
0.180±0.005 (4.572±0.127)
0.90 (2.286)
0.500 (12.70)
0.050 (1.270)
UNCONTROLLED LEAD DIMENSIONS
0.050±0.005 (1.270±0.127)
0.016±0.003 (0.406±0.076)
0.015±0.002 (0.381±0.051)
(TO-92 DRW# 042391
LEAD SOIC PLASTIC PACKAGE
0.189-0.197* (4.801-5.004)
0.228-0.244 (5.791-6.197)
0.150-0.157** (3.810-3.988)
0.053-0.069 (1.346-1.752) 0.004-0.010 (0.101-0.254) 0.008-0.010 (0.203-0.254)
0.010-0.020 (0.254-0.508) 0°-8°
0.014-0.019 (0.355-0.483)
0.050 (1.270)
0.016-0.050 (0.406-1.270)
(SO-8 DRW# 042293
*DIMENSION DOES INCLUDE MOLD FLASH. MOLD FLASH SHALL EXCEED 0.006" (0.152mm) SIDE **DIMENSION DOES INCLUDE INTERLEAD FLASH. INTERLEAD FLASH SHALL EXCEED 0.010" (0.254mm) SIDE
Advanced Monolithic Systems, Inc.
www.advanced-monolithic.com
Phone (925) 443-0722
(925) 443-0723
AMS1004-1.2
PACKAGE DIMENSIONS inches (millimeters) unless otherwise noted (Continued).
SOT-89 PLASTIC PACKAGE
0.173-0.181 (4.40-4.60) 0.064-0.072 (1.62-1.83)
0.055-0.063 (1.40-1.60) 0.014-0.017 (0.35-0.44)
0.155-0.167 (3.94-4.25) 0.090-0.102 (2.29-2.60) 0.084-0.090 (2.13-2.29)
0.035-0.047 (0.89-1.20) 0.059 (1.50) 0.118 (3.00) 0.014-0.019 (0.36-0.48) 0.017-0.022 (0.44-0.56)
(SOT-89 DRW# 042392
Advanced Monolithic Systems, Inc.
www.advanced-monolithic.com
Phone (925) 443-0722
(925) 443-0723
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