AMS3100AM

Advanced Monolithic Systems FEATURES AMS3100 ADJUSTABLE MICROPOWER VOLTAGE REFERENCE DIODE RoHS compliant APPLICATIONS • Battery Powered Systems • Instrumentation • A/D, D/A Converters • Temperature measurement • Current sources • Notebook/Personal Computer • Monitors/ VCR/ TV • Pagers • Adjustable from 1.24V to 5.30V • Operating Current 10µA to 20mA • 1% and 2% Initial Tolerance • 1Ω Dynamic Impedance • Low Temperature Coefficient • 1.2V Device and 2.5V Device also available GENERAL DESCRIPTION The AMS3100 are two-terminal micropower band-gap voltage reference that feature a very low dynamic impedance and good temperature coefficient, operating from 1.24V to 5.3V and over a 10µA to 20mA current range. AMS3100 is trimmed at wafer test level to optimize the temperature coefficient and tight output voltage tolerance. The advanced process technology used, makes the AMS3100 exceptionally tolerant of capacitive loading, making it easy to use in almost any reference application. The wide dynamic operating range allows its use with widely varying supplies with excellent regulation. The extremely low power drain, 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. Further more, the wide operating current allows it to replace older references with a tight tolerance part. Pin to pin compatible with other standard industry references, the AMS3100 offers the advantage of long term stability at low cost. The AMS3100 is operating over a -40°C to 85°C temperature range and is available in the space saving SOT-23 package. ORDERING INFORMATION: TOL. PACKAGE TYPE OPERATING TEMPERATURE RANGE -40°C to 85°C -40°C to 85°C -40°C to 85°C SOT-23 ±12mV AMS3100AM ±25mV AMS3100BM ±25mV AMS3100CM PIN CONNECTIONS 3L SOT-23 (M) 3 - 1 A 2 + A = Adjust pin. Top View Advanced Monolithic Systems, Inc. www.advanced-monolithic.com Phone (925) 443-0722 Fax (925) 443-0723 AMS3100 ABSOLUTE MAXIMUM RATINGS Reverse Current Forward Current Operating Temperature Range Storage temperature 30mA 10mA -40°C to 85°C -55°C to +150°C Lead Temperature (25 sec) Thermal Resistance (θJA) 215°C 410°C/W ELECTRICAL CHARACTERISTICS Electrical Characteristics at IR = 100 µA, and TA = +25°C unless otherwise specified. Parameter Reference Voltage Dynamic Output Impedance Conditions IR =100 µA IAC =0.1IR, f = 20Hz VOUT = VREF VOUT = 5.3V 10µA ≤IR ≤1mA 1mA ≤IR ≤20mA VOUT = VREF VOUT = 5.3V 10Hz ≤ f ≤ 10kHz VOUT = VREF VOUT = 5.3V Min 1.238 AMS3100A Typ Max 1.250 0.3 0.7 0.2 4 6 30 1.0 10 9 45 1.262 Min 1.225 AMS3100B Typ Max 1.250 0.3 0.7 0.2 4 6 30 1.0 10 9 45 1.275 Min 1.225 AMS3100C Typ Max 1.250 0.3 0.7 0.2 4 6 30 1.0 10 9 45 1.275 Units V Ω Reference Voltage Change with Current Min. Operating Current (Note 3) Wide Band Noise (Note 4) mV mV µA µA 50 170 25 50 170 50 50 170 100 150 µVrms µVrms ppm/°C Temperature Coeff. (Note 5) Long Term Stability (Note 4) TA=25°C±.1°C T = 1000 Hr 20 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: Parameters identified with boldface type apply at temperature extremes. All other numbers apply at TA = TJ = 25°C. Note 3: Guaranteed and 100% production tested Note 4: Guaranteed but not 100% production tested. These limits are not used to calculate average outgoing quality levels. Note 5: 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 -40°C, 25°C and 85°C. TYPICAL APPLICATIONS 1.2V Reference 9V R1 500k 1.2V + AMS3100 FB AMS3100 FB + 5.0V Reference 9V R1 50k Precision 10V Reference 15V R1 5k VOUT 10V + AMS3100 FB R3 68.1k 1% R2 301k 1% ⎛ R3 ⎞ VOUT = 1.24 ⎜ ⎜ R2 + 1⎟ ⎟ ⎝ ⎠ 5V R2 120k R3 364k - Advanced Monolithic Systems, Inc. www.advanced-monolithic.com Phone (925) 443-0722 Fax (925) 443-0723 AMS3100 TYPICAL APPLICATIONS (Continued) Low AC Noise Reference 15V R1 100k VOUT 10V + AMS3100 C1 0.47µF FB + C2 10µF R2 120k Current Source +15V + AMS3100 FB R1 2N2905 2N3964 R2 120k R4 33 R3 360kΩ 1 µA< I < 100 mA 1.24V IOUT = R1 25V Low Current Shunt Regulator V+ R3 200mA Shunt Regulator V+ R4 50 µA< I < 200 mA VOUT 2.5V 100 µA< I < 5 mA VOUT 25V + R1 120k FB R2 2.4M + AMS3100 2N2219 R3 1k FB R1 120k AMS3100 2N5115 R2 120k Voltage Level Detector Voltage Level Detector + AMS3100 D1 FB R1 120k D1 R2 1M + AMS3100 FB R1 120k λ λ R3 200 -5V R2 1M R3 330 < -12V LED ON -5V > -12V LED ON Advanced Monolithic Systems, Inc. www.advanced-monolithic.com Phone (925) 443-0722 Fax (925) 443-0723 AMS3100 TYPICAL APPLICATIONS (Continued) Bidirectional Clamp ± 2.4V VIN I R1 VOUT D2 1N457 AMS3100 + Bidirectional Adjustable Clamp ± 1.8V to ± 2.4V VIN I R1 VOUT D2 1N457 Bidirectional Adjustable Clamp ± 2.4V to ± 6V VIN I R1 VOUT + AMS3100 R2 330k FB R3 1M FB R4 330k D2 1N457 AMS3100 + + AMS3100 D1 1N457 FB R2 510k FB R3 510k R2 510k FB + AMS3100 D1 1N457 R3 510k FB R4 390k - AMS3100 + D1 1N457 TYPICAL PERFORMANCE CHARACTERISTICS REFERENCE VOLTAGE CHANGE (mV) AMS3100 Typical Temperature Coefficient 0 ∆Y ∆T -5 TEMPCO = ∆Y ∆T -10 -50 -40 -25 0 25 50 75 80 100 125 TEMPERATURE (° C) Advanced Monolithic Systems, Inc. www.advanced-monolithic.com Phone (925) 443-0722 Fax (925) 443-0723 AMS3100 TYPICAL PERFORMANCE CHARACTERISTICS (Continued) Reverse Characteristics OUTPUT VOLTAGE CHANGE (mV) 10 8 6 4 2 0 -2 0.01 0.1 1 10 100 REVERSE CURRENT (mA) T A =25° C T A =-40° C Reverse Characteristics 100 REVERSE CURRENT (µA) FORWARD VOLTAGE (V) 1.2 Forward Characteristics TA =85° C T A =-40° C 10 TA =85° C 0.8 1 TA =-40° C 0.4 TA =25° C T A =85° C T A =25° C 0.1 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 REVERSE VOLTAGE (V) Feedback Current 25 FEEDBACK CURRENT (nA) 20 15 10 MINIMUM CURRENT (µA) IR= 100µA IR= 100µA 0 0.01 0.1 1 10 Temperature Drift of 3 Representative Units 1.270 REFERENCE VOLTAGE (V) Minimum Operating Current 80 70 60 50 40 30 20 TYP @ 25° C AMS3100 WORST CASE 1.260 1.250 VOUT = VREF VOUT = 5.3V 1.240 5 0 -50 -25 0 25 50 75 100 125 TEMPERATURE (° C) Output Noise Voltage 1.230 -55 -35 -15 5 25 45 65 85 105 125 TEMPERATURE (° C) Dynamic Output Impedance 100 IR= 100µA ∆IR= 0.1IR T A =25° C 10 0 1 5 2 3 4 OUTPUT VOLTAGE (V) Response Time 6 5 OUTPUT INPUT 50k OUTPUT 120k AMS3100 364k 10,000 VOUT = VREF IR= 100µA V OUT = 5.3V OUTPUT IMPEDANCE (Ω) NOISE (nV/√Hz) 4 1,000 VOUT = VREF 10 VOUT = 5.3V VOLTAGE (V) 3 2 1 0 10 1 100 INPUT 0.1 10 100 1k 10k FREQUENCY (Hz) 100k 10 10 100 1k 10k FREQUENCY (Hz) 100k 0 0 50 100 150 200 TIME (µs) Advanced Monolithic Systems, Inc. www.advanced-monolithic.com Phone (925) 443-0722 Fax (925) 443-0723 AMS3100 PACKAGE DIMENSIONS inches (millimeters) unless otherwise noted. 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