AMS236AS

Advanced Monolithic Systems FEATURES • Low Temperature Coefficient • Wide Operating Current Range • Guaranteed Temperature Stability • Max. 0.6Ω Dynamic Impedance (A grade) • ±1% Initial Tolerance Available AMS236/AMS336 VOLTAGE REFERENCE DIODE RoHS compliant APPLICATIONS • Power Supplies • Instrumentation • 8 Bit A/D, D/A Reference • Current Loop Measurement and Control Systems • Reference for 5V Systems GENERAL DESCRIPTION The AMS236/AMS336 are precision band-gap voltage reference diodes. These voltage reference features a very low dynamic impedance and good temperature coefficient, operating over a wide current range of 400µA to 10mA. On-chip trimming is used to provide tight tolerance and minimize temperature drift. A third terminal allows the reference voltage to be trimmed ±5%. The AMS236/AMS336 are 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 AMS236 is rated for operation over -25°C to +85°C while the AMS336 is rated over a 0°C to 70°C temperature range. The AMS236/AMS336 are available in TO-92 and SO-8 packages. ORDERING INFORMATION: TOL. ±25mV ±50mV ±50mV ±100mV PACKAGE TYPE TO-92 AMS236AN AMS236BN AMS336AN AMS336BN 8 LEAD SOIC AMS236AS AMS236BS AMS336AS AMS336BS OPERATING TEMPERATURE RANGE -25°C to +85°C -25°C to +85°C 0°C to 70°C 0°C to 70°C 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. www.advanced-monolithic.com Phone (925) 443-0722 Fax (925) 443-0723 AMS236/AMS336 ABSOLUTE MAXIMUM RATINGS (Note 1) Reverse Current Forward Current Operating Temperature Range AMS236 AMS336 15mA 10mA -25°C to +85°C 0°C to +70°C Storage temperature Soldering information (25 sec) -55°C to +150°C 265°C ELECTRICAL CHARACTERISTICS Electrical Characteristics at IR = 1 mA, and TA = +25°C unless otherwise specified. Parameter Reverse Breakdown Voltage Reverse Dynamic Impedance Reverse Breakdown Voltage Change with current Temperature Stability Long Term Stability (Note 4) f = 100Hz 400µA ≤IR ≤10mA -25°C ≤ TA ≤ +85°C TA=25°C±0.1°C T = 1000 Hr Conditions Min 2.475 AMS236A Typ Max 2.500 0.2 0.4 2.6 3 3.5 20 2.525 0.6 1 6 10 9 Min 2.450 AMS236B Typ Max 2.500 0.2 0.4 2.6 3 3.5 20 2.550 0.6 1 6 10 9 Units V Ω mV mV ppm ELECTRICAL CHARACTERISTICS Electrical Characteristics at IR = 1 mA, and TA = +25°C unless otherwise specified. Parameter Reverse Breakdown Voltage Reverse Dynamic Impedance Reverse Breakdown Voltage Change with current Temperature Stability Long Term Stability (Note 4) f = 100Hz 400µA ≤IR ≤10mA 0°C ≤ TA ≤ 70°C TA=25°C±0.1°C T = 1000 Hr Conditions Min 2.450 AMS336A Typ Max 2.500 0.2 0.4 2.6 3 1.8 20 2.550 1.0 1.4 10 12 6 Min 2.400 AMS336B Typ Max 2.500 0.2 0.4 2.6 3 1.8 20 2.600 1.0 1.4 10 12 6 Units V Ω mV mV 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: AMS236 +125°C AMS336 +100°C Thermal Resistance ϕ JA (junction to ambient) TO-92 170°C/W (0.125” leads) SO-8 165°C/W Note 3: Parameters identified with boldface type apply at temperature extremes. All other numbers apply at TA = TJ = 25°C. Note 4: Temperature stability for the AMS236/336 family is guaranteed by design. Design limits are guaranteed (but not 100% production tested) over the specified temperature and supply voltage ranges. These limits are not used to calculate outgoing quality levels. 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. Advanced Monolithic Systems, Inc. www.advanced-monolithic.com Phone (925) 443-0722 Fax (925) 443-0723 AMS236/AMS336 TYPICAL PERFORMANCE CHARACTERISTICS Reverse Characteristics REVERSE VOLTAGE CHANGE (mV) 10 -1 REVERSE CURRENT ( µ A) 3.5 3.0 2.5 2.0 1.5 1.0 0.5 0 0 2 6 8 4 REVERSE CURRENT (mA) 10 VOLTAGE SWING (V) 2.5 2.0 1.0 0 6 0 0 2 4 TIME ( µ s) 6 8 2.5k INPUT OUTPUT OUTPUT Reverse Voltage Change Response Time 10 -2 10 -3 TJ = +25° C 10 -4 TJ = +85° C TJ = -25° C ~ ~ INPUT ~ ~ 10 -5 0.5 1.8 2.2 1.0 1.4 REVERSE VOLTAGE (V) 2.6 TYPICAL APPLICATIONS 2.5V Reference Wide Input Range Reference 2.5V Reference with Minimum Temperature Coefficient 5V VIN 3.5 TO 40V 10V 2.5k 2.5k 68 1N914* 2.5V VOUT = 2.5V AMS336 AMS336 AMS336 10k† 1N914* † Adjust to 2.50V * Any silicon signal diode Precision Power Regulator with Low Temperature Coefficient VIN AMS1085 IN OUT ADJ 1.2k VOUT Trimmed 2.5V Reference with Temperature Coefficient Independent of Breakdown Voltage 10V 5k 1N457 10k* 1N457 R1 375 AMS336 10k* TRIM AMS336 R2 2k OUTPUT ADJUST *Does not affect Temperature Coefficient Advanced Monolithic Systems, Inc. www.advanced-monolithic.com Phone (925) 443-0722 Fax (925) 443-0723 AMS336 PACKAGE DIMENSIONS inches (millimeters) unless otherwise noted. 3 LEAD TO-92 PLASTIC PACKAGE (N) 0.060±0.005 (1.524±0.127) DIA 0.180±0.005 (4.572±0.127) 0.060±0.010 (1.524±0.254) 0.140±0.010 (3.556±0.127) 0.180±0.005 (4.572±0.127) 0.90 (2.286) NOM 5° NOM 0.500 (12.70) MIN 10° NOM 0.050 (1.270) MAX UNCONTROLLED LEAD DIMENSIONS 0.050±0.005 (1.270±0.127) 0.016±0.003 (0.406±0.076) 0.015±0.002 (0.381±0.051) 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. www.advanced-monolithic.com Phone (925) 443-0722 Fax (925) 443-0723