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| Advanced Monolithic Systems FEATURES * Tight Output Voltage Tolerance * Low Output Noise * Operating Current 60A to 100mA * Low Dynamic Impedance * Low Temperature Coefficient * Available in the sub-miniature SOT-23 Package * 2.5V Device ( AMS4040) also available AMS4041 MICROPOWER SHUNT VOLTAGE REFERENCE APPLICATIONS * Battery Powered Systems * Instrumentation * Energy Management * Automotive * Precision Audio Components * Product Testing * Data Acquisition Systems GENERAL DESCRIPTION The AMS4041 is a two-terminal micropower band-gap voltage reference diode featuring a very low dynamic impedance and good temperature coefficient, operating over a 60A to 100mA current range. On-chip trimming is used to provide tight voltage tolerance. Since the AMS4041 band-gap reference uses only transistors and resistors, low noise and good long term stability result. The wide dynamic operating range allows its use with widely varying supplies with excellent regulation. The extremely low power drain of the AMS4041 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. The AMS4041 is operational in the full industrial temperature range of -40C to 85and is available in small space saving TO-92, SO-8, SOT-89 and SOT-23 packages. ORDERING INFORMATION: TOL. 0.25% 0.5% 1.0% TO-92 AMS4041AN AMS4041BN AMS4041CN PACKAGE TYPE 8 LEAD SOIC AMS4041AS AMS4041BS AMS4041CS SOT-89 AMS4041AL AMS4041BL AMS4041CL 3 LEAD SOT-23 AMS4041AM AMS4041BM AMS4041CM OPERATING TEMP. RANGE -40 to +85 C -40 to +85 C -40 to +85 C PIN CONNECTIONS TO-92 Plastic Package (N) N/C 3 + 2 1 8L SOIC SO Package (S) N/C N/C N/C 1 2 3 4 8 7 6 5 + N/C N/C SOT-89 (L) 3L SOT-23 (M) 3* 1 N/C 2 3 1 + 2 - *This pin must be left floating or connected to pin 2 Bottom View Top View Top View Top View Advanced Monolithic Systems, Inc. 6680B Sierra Lane, Dublin, CA 94568 Phone (925) 556-9090 Fax (925) 556-9140 AMS4041 ABSOLUTE MAXIMUM RATINGS (Note 1) Reverse Current Forward Current Storage temperature Lead Temperature TO-92 package (Soldering 10 sec.) SO-8 and SOT-23 packages: Vapor phase (60 sec) Infrared (15 sec.) SOT-89 package (Soldering 10 sec.) 100mA 10mA -65C to +150C 265C 215C 220C 265C Internal Power Dissipation (PD) TO-92 Package SO-8 Package SOT-89 Package SOT-23 Package Thermal Resistance (JA) TO-92 Package SO-8 Package SOT-89 Package SOT-23 Package 0.78W 0.71W 0.91W 0.28W 160C/W 175C/W 110C/W 410C/W Note1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. For guaranteed specifications and test conditions, see the Electrical Characteristics. The guaranteed specifications apply only for the test conditions listed. ELECTRICAL CHARACTERISTICS Electrical Characteristics at IR =100 A and TA = +25C unless otherwise specified. Parameter Reverse Breakdown Voltage Deviation of Reverse Breakdown Voltage over Temperature Reverse Breakdown Voltage Change with Operating Current Change Reverse Breakdown Voltage Long Term Stability Wide Band Noise Reverse Dynamic Impedance Minimum Operating Current TA = Full Range IRMIN IR 1mA 1mA IR 15mA Conditions Min 1.222 AMS4041A Typ Max 1.225 1.228 Min 1.219 AMS4041B Typ Max 1.225 1.231 Min 1.213 AMS4041C Typ Max 1.225 1.237 Units V 8.0 17 8.0 17 8.0 25 mV 0.7 1.5 2.0 0.7 1.5 2.0 0.7 2.0 2.5 mV 4.0 6.0 8.0 2.5 6.0 8.0 2.5 8.0 10.0 mV TA=25C.1C T = 1000 Hr 10HZ f 10kHz IR = 1mA, f = 120Hz, IAC = 0.1IR 120 120 120 ppm Vrms 2.0 80 100 A 20 0.5 60 1.5 80 100 20 0. 5 60 1.5 80 100 20 0.5 60 Parameters identified with boldface type apply at temperature extremes. All other numbers apply at TA = TJ = 25C. TYPICAL APPLICATIONS Shunt Regulator VS RS VR AMS4041 IQ + IL IL IQ Advanced Monolithic Systems, Inc. 6680B Sierra Lane, Dublin, CA 94568 Phone (925) 556-9090 Fax (925) 556-9140 AMS4041 TYPICAL APPLICATIONS Precision 1 A to 1mA Current Sources AMS4041 12V AMS4041 R1 20k 2 - 8 1/2 LMC6062 1 4 R1 20k 2 3 IOUT* -1.0V TO -12V + 8 1/2 LMC6062 3 4 + IOUT* 1.0V TO 12V - 1 R2 R2 -15V IOUT=1.2V/R2 Programmable Current Source 12V 30k 12 AOUT LF13006 LF13007 DIGITAL CONTROL AMS4041 +12V 0.1F 2 INPUT ANA GND 7 8 + 1/2 LMC6062 6 3 + 1 123, 0.5% IOUT 5 1/2 LMC6062 2 4 - IOUT = 1.2V/123(1/gain set #) Advanced Monolithic Systems, Inc. 6680B Sierra Lane, Dublin, CA 94568 Phone (925) 556-9090 Fax (925) 556-9140 AMS4041 START-UP CHARACTERISTICS RS VIN 1Hz rate AMS4041 VR RS = 30 k VIN (V) AMS4041 5 0 TJ = 25C Test circuit 3 VR (V) 2 1 0 0 20 40 60 80 RESPONSE TIME (s) TYPICAL PERFORMANCE CHARACTERISTICS Temperature Drift for Different Average Temperature Coefficient +0.5 +0.4 +0.3 VR CHANGE (%) +0.2 +0.1 0 -0.1 -0.2 -0.3 -51ppm/ C -22ppm/ C +12ppm/ C I R = 150 A Reverse Characteristics and Minimum Operating Current 100 TJ =25 C Noise Voltage vs Frequency 1000 IR = 200 A TJ =25 C REVERSE CURRENT (A) 80 60 40 20 0 NOISE (mV/Hz) 0.4 1.2 1.6 0.8 REVERSE VOLTAGE (V) 800 600 400 200 0 0 2.0 1 10 1k 10k 100 FREQUENCY (Hz) 100k -0.4 -0.5 -40 -20 0 20 40 60 80 TEMPERATURE ( C) 100 Ouput Impedance vs Frequency 1k IR= 1mA TJ =25 C, I R= 0.1I R Ouput Impedance vs Frequency 1k I R= 150A TJ =25 C, I R= 0.1I R C L= 0 IMPEDANCE () C L= 0 IMPEDANCE () 100 100 10 C L= 1 F TANTALUM 10 C L= 1F TANTALUM 1 XC L 1 XC L 0.1 100 1k 10k 100k FREQUENCY (Hz) 1M 0.1 100 1k 10k 100k FREQUENCY (Hz) 1M Advanced Monolithic Systems, Inc. 6680B Sierra Lane, Dublin, CA 94568 Phone (925) 556-9090 Fax (925) 556-9140 AMS4041 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 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 AMS4041 PACKAGE DIMENSIONS inches (millimeters) unless otherwise noted (Continued). SOT-89 PLASTIC PACKAGE (L) 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) BSC 0.118 (3.00) BSC 0.014-0.019 (0.36-0.48) 0.017-0.022 (0.44-0.56) L (SOT-89 ) AMS DRW# 042392 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. 6680B Sierra Lane, Dublin, CA 94568 Phone (925) 556-9090 Fax (925) 556-9140 |
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