Advanced Monolithic Systems AMS4041 MICROPOWER SHUNT VOLTAGE REFERENCE RoHS compliant FEATURES APPLICATIONS • Tight Output Voltage Tolerance • Low Output Noise • Operating Current 60µA to 100mA • Low Dynamic Impedance • Low Temperature Coefficient • Available in the sub-miniature SOT-23 Package • 2.5V Device ( AMS4040) also available • 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 60µA 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 -40°C to 85°and is available in small space saving TO92, SO-8, SOT-89 and SOT-23 packages. ORDERING INFORMATION: TOL. ±0.25% ±0.5% ±1.0% PACKAGE TYPE TO-92 AMS4041AN AMS4041BN AMS4041CN 8 LEAD SOIC AMS4041AS AMS4041BS AMS4041CS OPERATING SOT-89 AMS4041AL AMS4041BL AMS4041CL 3 LEAD SOT-23 AMS4041AM AMS4041BM AMS4041CM 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 1 8 + N/C 2 7 N/C N/C 3 6 N/C - 4 5 N/C SOT-89 (L) 3L SOT-23 (M) 3 * 1 2 3 1 + 2 - *This pin must be left floating or connected to pin 2 Bottom View Advanced Monolithic Systems, Inc. Top View Top View www.advanced-monolithic.com Phone (925) 443-0722 Top View Fax (925) 443-0723 AMS4041 ABSOLUTE MAXIMUM RATINGS (Note 1) Reverse Current Forward Current Storage temperature Lead Temperature (25 sec) 100mA 10mA -65°C to +150°C 265°C Internal Power Dissipation (PD) TO-92 Package SO-8 Package SOT-89 Package SOT-23 Package Thermal Resistance (θJA) TO-92 Package SO-8 Package SOT-89 Package SOT-23 Package 0.78W 0.71W 0.91W 0.28W 160°C/W 175°C/W 110°C/W 410°C/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 µA and TA = +25°C unless otherwise specified. Parameter Conditions Reverse Breakdown Voltage Deviation of Reverse Breakdown Voltage over Temperature Reverse Breakdown Voltage Change with Operating Current Change Min AMS4041A Typ Max 1.222 1.225 1.228 TA = Full Range 8.0 IRMIN ≤ IR ≤ 1mA 0.7 Min 1.219 AMS4041B Typ Max 1.225 1.231 17 8.0 1.5 0.7 2.0 1mA ≤ IR ≤ 15mA 4.0 6.0 Min 1.213 AMS4041C Typ Max 1.225 1.237 V 17 8.0 25 mV 1.5 0.7 2.0 mV 2.0 2.5 8.0 Units 6.0 2.5 2.5 8.0 8.0 mV 10.0 Reverse Breakdown Voltage Long Term Stability TA=25°C±.1°C T = 1000 Hr 120 120 120 ppm Wide Band Noise 10HZ ≤ f ≤ 10kHz 20 20 20 µVrms Reverse Dynamic Impedance IR = 1mA, f = 120Hz, 0.5 IAC = 0.1IR Minimum Operating Current 60 1.5 0. 5 80 60 100 1.5 0.5 80 60 100 2.0 Ω 80 µA 100 Parameters identified with boldface type apply at temperature extremes. All other numbers apply at TA = TJ = 25°C. TYPICAL APPLICATIONS Shunt Regulator VS RS IQ + IL IL VR AMS4041 Advanced Monolithic Systems, Inc. IQ www.advanced-monolithic.com Phone (925) 443-0722 Fax (925) 443-0723 AMS4041 TYPICAL APPLICATIONS Precision 1µA to 1mA Current Sources AMS4041 12V AMS4041 R1 20k 2 - R1 20k 8 1/2 LMC6062 3 4 + IOUT* 2 - 8 1/2 LMC6062 3 4 + 1 R2 IOUT* -1.0V TO -12V 1 R2 1.0V TO 12V -15V IOUT=1.2V/R2 Programmable Current Source 12V 30k 12 AOUT LF13006 LF13007 AMS4041 DIGITAL CONTROL +12V 0.1µF 2 INPUT ANA GND 8 + 5 1/2 LMC6062 7 6 3 2 + 1/2 LMC6062 4 - 1 123Ω, 0.5% IOUT IOUT = 1.2V/123Ω(1/gain set #) Advanced Monolithic Systems, Inc. www.advanced-monolithic.com Phone (925) 443-0722 Fax (925) 443-0723 AMS4041 START-UP CHARACTERISTICS AMS4041 RS VIN 1Hz rate VR RS = 30 k 5 VIN (V) AMS4041 Test circuit 0 TJ = 25°C VR (V) 3 2 1 0 0 20 40 60 80 RESPONSE TIME ( µs) TYPICAL PERFORMANCE CHARACTERISTICS Reverse Characteristics and Minimum Operating Current Temperature Drift for Different Average Temperature Coefficient VR CHANGE (%) +0.2 +12ppm/° C +0.1 0 -0.1 -22ppm/° C -0.3 -51ppm/° C IR = 200µ A TJ =25° C 80 800 NOISE (mV/√Hz) REVERSE CURRENT ( µA) TJ =25° C +0.3 -0.4 -0.5 -40 -20 1000 IR = 150µ A +0.4 -0.2 Noise Voltage vs Frequency 100 +0.5 60 40 20 100 0 0 0.4 1.2 1.6 0.8 REVERSE VOLTAGE (V) Ouput Impedance vs Frequency 1 10 1k 10k 100 FREQUENCY (Hz) 100k Ouput Impedance vs Frequency 100 CL= 0 10 2.0 1k IR= 1mA TJ =25° C, ∆IR= 0.1IR CL= 1µF TANTALUM 1 IMPEDANCE (Ω) IMPEDANCE (Ω) 1k 400 200 0 0 20 40 60 80 TEMPERATURE ( ° C) 600 IR= 150µA TJ =25° C, ∆IR= 0.1IR CL= 0 100 CL= 1µF TANTALUM 10 1 XCL XCL 0.1 0.1 100 1k 10k 100k FREQUENCY (Hz) Advanced Monolithic Systems, Inc. 1M www.advanced-monolithic.com 100 1k 10k 100k FREQUENCY (Hz) Phone (925) 443-0722 1M Fax (925) 443-0723 AMS4041 PACKAGE DIMENSIONS inches (millimeters) unless otherwise noted. 3 LEAD TO-92 PLASTIC PACKAGE (N) 0.180±0.005 (4.572±0.127) 0.060±0.005 (1.524±0.127) DIA 0.060±0.010 (1.524±0.254) 0.90 (2.286) NOM 0.180±0.005 (4.572±0.127) 0.140±0.010 (3.556±0.127) 5° NOM 0.500 (12.70) MIN 0.050 (1.270) MAX UNCONTROLLED LEAD DIMENSIONS 0.015±0.002 (0.381±0.051) 0.016±0.003 (0.406±0.076) 0.050±0.005 (1.270±0.127) 10° NOM 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 0.010-0.020 x 45° (0.254-0.508) 0.053-0.069 (1.346-1.752) 0.004-0.010 (0.101-0.254) 0.014-0.019 (0.355-0.483) 0.008-0.010 (0.203-0.254) 0.050 (1.270) TYP 0°-8° 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. www.advanced-monolithic.com Phone (925) 443-0722 Fax (925) 443-0723 AMS4041 PACKAGE DIMENSIONS inches (millimeters) unless otherwise noted (Continued). SOT-89 PLASTIC PACKAGE (L) 0.173-0.181 (4.40-4.60) 0.055-0.063 (1.40-1.60) 0.014-0.017 (0.35-0.44) 0.064-0.072 (1.62-1.83) 0.155-0.167 (3.94-4.25) 0.084-0.090 (2.13-2.29) 0.090-0.102 (2.29-2.60) 0.035-0.047 (0.89-1.20) 0.059 (1.50) BSC 0.014-0.019 (0.36-0.48) 0.017-0.022 (0.44-0.56) L (SOT-89 ) AMS DRW# 042392 0.118 (3.00) BSC 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. www.advanced-monolithic.com Phone (925) 443-0722 Fax (925) 443-0723