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| Advanced Monolithic Systems FEATURES * 5 mV (0.2%) Max. Initial Tolerance (A grade) * Wide Operating Current Range * Low Voltage Reference 2.5V * Max. 0.6 Dynamic Impedance (A grade) * Low Temperature Coefficient AMS1009 VOLTAGE REFERENCE DIODE APPLICATIONS * Power Supplies * Instrumentation * 8 Bit A/D, D/A Reference * Current Loop Measurement and Control Systems * 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 400A 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 0C to 70C temperature range. ORDERING INFORMATION: TOL. PACKAGE TYPE 8 LEAD SOIC AMS1009AS AMS1009BS OPERATING TEMPERATURE RANGE 0 to 70 C 0 to 70 C TO-92 5mV AMS1009AN 10mV AMS1009BN PIN CONNECTIONS TO-92 Plastic Package (N) 8L SOIC SO Package (S) + 8 N/C N/C ADJ 7 6 5 3 2 1 1 2 3 N/C N/C N/C 4 - Bottom View Top View Advanced Monolithic Systems, Inc. 6680B Sierra Lane, Dublin, CA 94568 Phone (925) 556-9090 Fax (925) 556-9140 AMS1009 ABSOLUTE MAXIMUM RATINGS (Note 1) Reverse Current 20mA Forward Current 10mA Operating Temperature Range 0C to 70C Storage temperature -55C to +150C Soldering information TO-92 package: 10 sec. SOIC package: Vapor phase (60 sec) Infrared (15 sec.) 260C 215C 220C ELECTRICAL CHARACTERISTICS Electrical Characteristics at IR = 1 mA, and TA = +25C unless otherwise specified. Parameter Reverse Breakdown Voltage Reverse Dynamic Impedance Reverse Breakdown Voltage Change with current Temperature Stability Average Temperature Coeff. Long Term Stability (Note 4) 400A IR 10mA TMIN TA TMAX 0C TA 70C TA=25C.1C T = 1000 Hr Conditions Min 2.495 AMS1009A Typ Max 2.500 0.2 0.4 2.6 3 1.8 15 20 2.505 0.6 1.4 10 12 4 25 Min 2.490 AMS1009B Typ Max 2.500 0.2 0.4 2.6 3 1.8 15 20 2.510 1.0 1.4 10 12 4 25 Units V mV mV ppm/C 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 +125C Thermal Resistance JA (junction to ambient) TO-92 170C/W (0.125" leads) SO-8 165C/W Note 3: Parameters identified with boldface type apply at temperature extremes. All other numbers apply at TA = TJ = 25C. Note 4: 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 0C, 25C and 70C. TYPICAL PERFORMANCE CHARACTERISTICS Reverse Characteristics REVERSE VOLTAGE CHANGE (mV) 10-1 REVERSE CURRENT (A) 5 2.5 VOLTAGE SWING (V) 4 3 2 2.0 1.0 0 5k INPUT OUTPUT Reverse Voltage Change Response Time OUTPUT 10-2 10-3 TJ =25 C 10-4 TJ =70 C TJ = 0 C ~ ~ 10 INPUT ~~ ~~ ~ ~ ~ ~ 1 0 0.5 1.8 2.2 1.0 1.4 REVERSE VOLTAGE (V) 2.6 0 4 12 16 8 REVERSE CURRENT (mA) 20 0 1 TIME (s) ~ ~ 20 10-5 4 0 Advanced Monolithic Systems, Inc. 6680B Sierra Lane, Dublin, CA 94568 Phone (925) 556-9090 Fax (925) 556-9140 AMS1009 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 Low Temperature Coefficient Power Regulator AMS1085 VIN IN OUT ADJ 1.2k 375 VOUT AMS1009 2k PACKAGE DIMENSIONS inches (millimeters) unless otherwise noted. 3 LEAD TO-92 PLASTIC PACKAGE (N) 0.0600.005 (1.5240.127) DIA 0.1800.005 (4.5720.127) 0.0600.010 (1.5240.254) 0.1400.010 (3.5560.127) 0.1800.005 (4.5720.127) 0.90 (2.286) NOM 5 NOM 0.500 (12.70) MIN 10 NOM 0.050 (1.270) MAX UNCONTROLLED LEAD DIMENSIONS 0.0500.005 (1.2700.127) 0.0160.003 (0.4060.076) 0.0150.002 (0.3810.051) N (TO-92 ) AMS DRW# 042391 Advanced Monolithic Systems, Inc. 6680B Sierra Lane, Dublin, CA 94568 Phone (925) 556-9090 Fax (925) 556-9140 AMS1009 PACKAGE DIMENSIONS inches (millimeters) unless otherwise noted (Continued). 8 LEAD SOIC PLASTIC PACKAGE (S) 0.189-0.197* (4.801-5.004) 8 7 6 5 0.228-0.244 (5.791-6.197) 0.150-0.157** (3.810-3.988) 1 2 3 4 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 x 45 (0.254-0.508) 0-8 TYP 0.014-0.019 (0.355-0.483) 0.050 (1.270) TYP 0.016-0.050 (0.406-1.270) S (SO-8 ) AMS DRW# 042293 *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 Advanced Monolithic Systems, Inc. 6680B Sierra Lane, Dublin, CA 94568 Phone (925) 556-9090 Fax (925) 556-9140 |
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