Advanced Monolithic Systems AMS3100 ADJUSTABLE MICROPOWER VOLTAGE REFERENCE DIODE RoHS compliant FEATURES APPLICATIONS • 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 • Battery Powered Systems • Instrumentation • A/D, D/A Converters • Temperature measurement • Current sources • Notebook/Personal Computer • Monitors/ VCR/ TV • Pagers 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 SOT-23 ±12mV AMS3100AM ±25mV AMS3100BM ±25mV AMS3100CM OPERATING TEMPERATURE RANGE -40°C to 85°C -40°C to 85°C -40°C to 85°C 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) 215°C Thermal Resistance (θJA) 410°C/W ELECTRICAL CHARACTERISTICS Electrical Characteristics at IR = 100 µA, and TA = +25°C unless otherwise specified. AMS3100A Typ Max AMS3100B Typ Max AMS3100C Typ Max Parameter Conditions Reference Voltage IR =100 µA Dynamic Output Impedance IAC =0.1IR, f = 20Hz VOUT = VREF 0.3 0.3 0.3 VOUT = 5.3V 0.7 0.7 0.7 10µA ≤IR ≤1mA 0.2 1.0 0.2 1.0 0.2 1.0 mV 4 10 4 10 4 10 mV µA µA Reference Voltage Change with Current Min 1mA ≤IR ≤20mA 1.238 1.250 Min 1.262 1.225 1.250 1.275 Min 1.225 1.250 1.275 V Ω Min. Operating Current (Note 3) VOUT = VREF 6 9 6 9 6 9 VOUT = 5.3V 30 45 30 45 30 45 Wide Band Noise 10Hz ≤ f ≤ 10kHz (Note 4) Units VOUT = VREF 50 50 50 µVrms VOUT = 5.3V 170 170 170 µVrms Temperature Coeff. 25 50 100 150 ppm/°C (Note 5) Long Term Stability TA=25°C±.1°C (Note 4) 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 5.0V Reference 9V R1 500k R1 50k + VOUT 10V R2 120k + Advanced Monolithic Systems, Inc. R1 5k 5V FB - 15V ⎛ R3 ⎞ VOUT = 1.24 ⎜⎜ + 1⎟⎟ ⎝ R2 ⎠ 1.2V AMS3100 Precision 10V Reference AMS3100 FB AMS3100 - R3 364k www.advanced-monolithic.com R2 301k 1% + - Phone (925) 443-0722 FB R3 68.1k 1% Fax (925) 443-0723 AMS3100 TYPICAL APPLICATIONS (Continued) Low AC Noise Reference Current Source +15V 15V R1 100k AMS3100 2N2905 FB + C2 10µF - R4 33 FB AMS3100 R2 120k + R1 + VOUT 10V C1 0.47µF 2N3964 R2 120k R3 360kΩ 1 µA< I < 100 mA 1.24V IOUT = R1 25V Low Current Shunt Regulator 200mA Shunt Regulator V+ V+ R3 R4 100 µA< I < 5 mA VOUT 25V 50 µA< I < 200 mA R1 120k + AMS3100 - AMS3100 R2 2.4M 2N5115 R1 120k + FB FB 2N2219 R2 120k R3 1k Voltage Level Detector AMS3100 - λ D1 Voltage Level Detector R1 120k + R3 200 R1 120k + FB D1 λ R2 1M AMS3100 R2 1M R3 330 -5V FB - < -12V LED ON Advanced Monolithic Systems, Inc. VOUT 2.5V > -12V LED ON -5V www.advanced-monolithic.com Phone (925) 443-0722 Fax (925) 443-0723 AMS3100 TYPICAL APPLICATIONS (Continued) Bidirectional Clamp ± 2.4V Bidirectional Adjustable Clamp ± 1.8V to ± 2.4V VIN VIN I R1 I FB D1 1N457 FB I R2 510k AMS3100 R3 510k VIN R1 VOUT D2 1N457 R2 510k + AMS3100 Bidirectional Adjustable Clamp ± 2.4V to ± 6V FB + + AMS3100 - VOUT D2 1N457 AMS3100 R3 510k + FB D1 1N457 VOUT R2 330k + AMS3100 FB R3 1M - D1 1N457 R4 390k - R1 D2 1N457 AMS3100 FB R4 330k + REFERENCE VOLTAGE CHANGE (mV) TYPICAL PERFORMANCE CHARACTERISTICS 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 TA =85° C 6 4 T A =25° C 2 T A =-40° C 0 10 TA =85° C 1 TA =-40° C T A =-40° C 0.8 TA =25° C 0.4 T A =85° C T A =25° C 0.1 -2 0 0 0.1 1 10 100 REVERSE CURRENT (mA) Temperature Drift of 3 Representative Units 0.2 0.4 0.6 0.8 1.0 1.2 1.4 REVERSE VOLTAGE (V) 0.01 Feedback Current 1.250 1.240 1.230 MINIMUM CURRENT (µA) 1.260 20 15 VOUT = VREF 10 VOUT = 5.3V 5 AMS3100 WORST CASE 60 50 40 30 20 TYP @ 25° C 10 1 5 2 3 4 OUTPUT VOLTAGE (V) Response Time 6 10,000 IR= 100µA VOUT = VREF 5 OUTPUT V OUT = 5.3V 10 VOUT = 5.3V 1 INPUT 4 VOLTAGE (V) NOISE (nV/√Hz) IR= 100µA ∆IR= 0.1IR T A =25° C 70 Output Noise Voltage Dynamic Output Impedance 100 10 0 0 -50 -25 0 25 50 75 100 125 TEMPERATURE (° C) -55 -35 -15 5 25 45 65 85 105 125 TEMPERATURE (° C) 1 80 IR= 100µA FEEDBACK CURRENT (nA) IR= 100µA 0.1 Minimum Operating Current 25 1.270 REFERENCE VOLTAGE (V) 1.2 FORWARD VOLTAGE (V) 8 0.01 OUTPUT IMPEDANCE (Ω) Forward Characteristics 100 REVERSE CURRENT (µA) OUTPUT VOLTAGE CHANGE (mV) Reverse Characteristics 10 1,000 VOUT = VREF 100 50k 3 OUTPUT 120k 2 AMS3100 1 364k 0 10 0.1 10 10 100 1k 10k FREQUENCY (Hz) 100k Advanced Monolithic Systems, Inc. INPUT 0 10 100 1k 10k FREQUENCY (Hz) www.advanced-monolithic.com 100k Phone (925) 443-0722 0 50 100 150 200 TIME (µs) 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