AMS1004-1.2_05 ADMOS | Alldatasheet

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Advanced Monolithic Systems, Inc. www.advanced-monolithic.com Phone (925) 443-0722 Fax (925) 443-0723 Advanced AMS1004-1.2 Monolithic MICROPOWER VOLTAGE REFERENCE Systems RoHS compliant FEATURES APPLICATIONS

  • ±4 mV (±0.3%) max. initial tolerance (A grade) • Battery Powered Systems
  • Operating Current 10µA to 20mA • Instrumentation
  • Low Voltage Reference 1.235V • A/D, D/A Converters
  • Max. 0.6Ω Dynamic Impedance (A grade) • Temperature measurement
  • Low Temperature Coefficient • Current sources
  • 2.5V Device also available, AMS1004-2.5 • Notebook/Personal Computer
  • Monitors/ VCR/ TV
  • Pagers GENERAL DESCRIPTION The AMS1004-1.2 is a two-terminal micropower band-gap voltage reference diode. It features a very low dynamic impedance and good temperature coefficient, operating over a 10 µA to 20mA current range. On-chip trimming is used to provide tight voltage tolerance. Since the AMS1004-1.2 is a band-gap reference, uses only transistors and resistors, low noise and good long term stability result. Careful design of the AMS1004-1.2 has ma de the device exceptionally tole rant of capacitive loading, making it easy to use in almost any reference application. Th e wide dynamic operating range allows its use with widely varying supplies with excellent regulation. The extremely lo w power drain of the AMS1004-1.2 makes these reference diodes useful for micropower circuitry. This voltage reference 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, making it attractiv e for use in systems where accuracy was previously obtained at the expense of power consumption and trimming. The AMS1004-1.2 is operational over a temperature range of 0 °C to 70 °C and is available in TO-92, SO-8 and SOT-89 packages. For extended temperature range contact factory. ORDERING INFORMATION: TOL. PACKAGE TYPE OPERATING TO-92 8 LEAD SOIC SOT-89 TEMPERATURE RANGE ±4mV AMS1004-1.2AN AMS1004-1.2AS AMS1004-1.2AL 0 to 70° C ±15mV AMS1004-1.2BN AMS1004-1.2BS AMS1004-1.2BL 0 to 70° C

Advanced Monolithic Systems, Inc. www.advanced-monolithic.com Phone (925) 443-0722 Fax (925) 443-0723 AMS1004-1.2 ABSOLUTE MAXIMUM RATINGS Reverse Current 30mA Storage temperature -55°C to +150°C Forward Current 10mA Soldering information (25 sec.) 265°C Operating Temperature Range 0°C to 70°C

ELECTRICAL CHARACTERISTICS

Electrical Characteristics at IR = 100 µA, and TA = +25°C unless otherwise specified. Parameter Conditions AMS1004A-1.2 Min Typ Max AMS1004B-1.2 Min Typ Max Units Reverse Breakdown Voltage (Note 4) IR - 100 µA 1.231 1.235 1.239 1.220 1.235 1.250 V Reverse Dynamic Impedance (Note 4) IR - 100 µA, f = 20Hz 0.2 0.60 1 Ω Reverse Breakdown Voltage Change with current (Note 4) 10µA ≤I R ≤1mA 1mA ≤IR ≤20mA 1.0 1.0 mV Min. Operating Current (Note 4) 8 10 8 10 µA µA Wide Band Noise (Note 5) IR - 100 µA, 10Hz ≤ f ≤ 10kHz 60 60 µV Temperature Coeff. (Note 6) 25 50 ppm/°C Long Term Stability (Note 5) TA=25°C±.1°C T = 1000 Hr 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: For elevated temperature operation, Tj max is +100°C Thermal Resistance TO-92 SO-8 SOT-89 ϕ JA (junction to ambient) 170°C/W (0.125” leads) 165°C/W 160°C/W Note 3: Parameters identified with boldface type apply at temperature extremes. All other numbers apply at TA = TJ = 25°C. Note 4: Guaranteed and 100% production tested. Note 5: Guaranteed but not 100% production tested. These limits are not used to calculate average outgoing quality levels. Note 6: 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 0°C, 25°C, 70°C.

Advanced Monolithic Systems, Inc. www.advanced-monolithic.com Phone (925) 443-0722 Fax (925) 443-0723 AMS1004-1.2 PIN CONNECTIONS TO-92 SO-8 SOT-89 Plastic Package (N) SO Package (S) (L) 123 75 6 N/C N/CN/C N/C N/C N/C N/C -+ 123 Bottom View Top View Top View TYPICAL APPLICATIONS Wide Input Micropower Reference Reference from Range Reference from 9V Battery 1.5V Battery 4.3k LM334 OUT 1.24V AMS1004-1.2 VIN = 2.3V TO 30V AMS1004-1.2 1.2V 500k AMS1004-1.2 1.2V 1.5V Micropower Thermocouple Cold Junction Compensator LM334 AMS1004-1.2 R1R2 ZERO ADJ 100k 5.1k 2k TC ADJ 500 METER MERCURY CELL 1.345V R THERMOCOUPLE COLD JUNCTION ISO THERMAL WITH LM334 Adjustment Procedure 1. Adjust TC ADJ pot until voltage across R1 equals Kelvin temperature multiplied by the thermocouple Seebeck coefficient. 2. Adjust ZERO ADJ pot until voltage across R2 equals the thermocouple Seebeck coefficient multiplied by 273.2. Thermocouple Seebeck R1 R2 Voltage Voltage Type Coefficient (Ω) (Ω) Across R1 Across R2 (mV/ °C) @ 25°C (mV) (mV) J 52.3 523 1.24k 15.60 14.32 T 42.8 432 1k 12.77 11.78 K 40.8 412 953Ω 12.17 11.17 S 6.4 63.4 150Ω 1.908 1.766 Typical supply current 50µA

Advanced Monolithic Systems, Inc. www.advanced-monolithic.com Phone (925) 443-0722 Fax (925) 443-0723 AMS1004-1.2 TYPICAL APPLICATIONS (Continued) 0°C - 100°C Thermometer Lower Power Thermometer 0°C - 100°C Thermometer AMS1004-1.2 150 100 220 1.5V (1.3-1.6V)† R LM334 M0-100µA IOUT Calibration 1. Short AMS1004-1.2, adjust R3 for I OUT = temp at 1µA/°K 2. Remove short, adjust R2 for correct reading in † IQ at 1.3V ≅ 500 µA IQ at 1.6V ≅ 2.4mA LM334 M AMS1004-1.2 1.3 TO 1.6V‡ 8k TO 12k† * 2N3638 or 2N2907 select for inverse HFE ≅ 5 † Select for operation at 1.3V ‡ IQ ≅ 600µA to 900 µA AMS1004-1.2 150 100 1.3-1.6V R LM334 M0-50µA IOUT Calibration 1. Short AMS1004-1.2, adjust R3 for I OUT = temp at 1.8µA/°K 2. Remove short, adjust R2 for correct reading in Centigrade Thermometer Micropower* 10V Reference AMS1004-1.2 R V1 V2 LM334 90k 25k 27k1.2k 2.3k OUTPUT 1mV/° C 2.2k 1.5V† Calibration 1. Adjust R1 so that V1 = temp at 1mV/°K. 2. Adjust V2 to 273.2mV. † IQ for 1.3V to 1.6V battery voltage = 50µA to 150µA 150pF AMS1004-1.2 3.5M 500k 22M VIN = 15V IQ 10VLM4250C *IQ ≅ 20µA standby current

Advanced Monolithic Systems, Inc. www.advanced-monolithic.com Phone (925) 443-0722 Fax (925) 443-0723 AMS1004-1.2 TYPICAL PERFORMANCE CHARACTERISTICS 0.1 1 10 100 Reverse Characteristics OUTPUT VOLTAGE CHANGE (mV) TA =25° C 0.1 100 0.1 1 10 100 Reverse Dynamic Impedance DYNAMIC IMPEDANCE (Ω) 0.01 0.4 1.2 0.1 1 10 100 0.8 0.01 REVERSE CURRENT (mA) REVERSE CURRENT (mA) 0.1 100 1.4 REVERSE VOLTAGE (V) REVERSE CURRENT (µA) Reverse Characteristics Forward Characteristics FORWARD CURRENT (mA) FORWARD VOLTAGE (V) 10 100 1k 10k 100k 0.1 Reverse Dynamic Impedance FREQUENCY (Hz) DYNAMIC IMPEDANCE (Ω) 10k 100 -55 5 25 45 65 85 105 1.260 1.240 125 REFERENCE VOLTAGE (V) Temperature Drift of 3 Representative Units 1.0 2.0 0 200 400 600 TIME (µs) Response Time VOLTAGE SWING (V) 0.5 1.5 ~~~~ 200 400 600 700 100 1k 10k 100k Noise Voltage 100 500NOISE (nV/√Hz) IR= 100µA FREQUENCY (Hz) 300 100 1k 10k 100k CUTOFF FREQUENCY (Hz) INTEGRATED NOISE ( µV) TEMPERATURE (° C) 1.250 1.230 1.220 -35 -15 IR= 100µA TA =-55° C TA =125° C TA =125° C TA =-55° C TA =25° C TA =-55° C TA =25° C TA =125° C TA =25° C IR= 100µA TA =-55° C TA =25° C TA =125° C IR= 100µA 100µA OUTPUT OUTPUT 100k INPUT OUTPUT INPUT SINGLE POLE LOW PASS SHARP CUTOFF FILTER Filtered Output Noise 0.01

Advanced Monolithic Systems, Inc. www.advanced-monolithic.com Phone (925) 443-0722 Fax (925) 443-0723 AMS1004-1.2 PACKAGE DIMENSIONS inches (millimeters) unless otherwise noted.

3 LEAD TO-92 PLASTIC PACKAGE (N)

8 LEAD SOIC PLASTIC PACKAGE (S)

0.140±0.010 (3.556±0.127) 0.060±0.010 (1.524±0.254) 0.015±0.002 (1.270±0.127) 0.060±0.005 (1.524±0.127) DIA 0.180±0.005 (4.572±0.127) 0.180±0.005 (4.572±0.127) 0.050 (1.270) MAX 0.500 (12.70) MIN UNCONTROLLED LEAD DIMENSIONS 10° NOM5° NOM N (TO-92 ) AMS DRW# 042391 0.90 (2.286) NOM 0°-8° TYP 0.010-0.020 (0.254-0.508) S (SO-8 ) AMS DRW# 042293 x 45° 0.016-0.050 (0.406-1.270) 0.008-0.010 (0.203-0.254) 0.004-0.010 (0.101-0.254) 0.014-0.019 (0.355-0.483) 0.053-0.069 (1.346-1.752) 0.050 (1.270) TYP 0.150-0.157** (3.810-3.988) 0.228-0.244 (5.791-6.197) 0.189-0.197* (4.801-5.004) *DIMENSION DOES NOT INCLUDE MOLD FLASH. MOLD FLASH SHALL NOT EXCEED 0.006" (0.152mm) PER SIDE **DIMENSION DOES NOT INCLUDE INTERLEAD FLASH. INTERLEAD FLASH SHALL NOT EXCEED 0.010" (0.254mm) PER SIDE 12 34 87 65

Advanced Monolithic Systems, Inc. www.advanced-monolithic.com Phone (925) 443-0722 Fax (925) 443-0723 AMS1004-1.2 PACKAGE DIMENSIONS inches (millimeters) unless otherwise noted (Continued). SOT-89 PLASTIC PACKAGE (L) 0.090-0.102 (2.29-2.60) 0.173-0.181 (4.40-4.60) 0.064-0.072 (1.62-1.83) 0.155-0.167 (3.94-4.25) 0.059 (1.50) BSC 0.035-0.047 (0.89-1.20) L (SOT-89 ) AMS DRW# 042392 0.118 (3.00) BSC 0.014-0.019 (0.36-0.48) 0.017-0.022 (0.44-0.56) 0.084-0.090 (2.13-2.29) 0.055-0.063 (1.40-1.60) 0.014-0.017 (0.35-0.44)