Analog Microelectronics, Inc. Micropower Voltage Reference Diode AME385-2.5 n General Description n Key Features The AME385-2.5 is a micropower 2-terminal band-gap voltage regulator diode. It operates over a 20µA to 20mA current range. Each circuit is trimmed at wafer sort to provide a ±0.20% and ±0.50% initial tolerance. The design of the AME385-2.5 allows for a large range of load capacitances and operating currents. The low start-up current makes these part ideal for battery applications. Analog Microelectronics offers this part in a TO-92 and SO-8 package as well as the space saving SOT-23. l Small packages: SOT-23, TO-92, SO-8 l Tolerates capacitive loads l Fixed reverse breakdown voltage of 2.5V l Tight voltage tolerance ---------- ±0.20%, ±0.50% l Wide operating current ---------- 20µA to 20mA l Wide temperature range -------- -40oC to +85oC l Low temperature coefficient --- 100ppm/oC (max) l Excellent transient response n Applications l l l l l l Portable electronics Power supplies Computer peripherals Data acquisition systems Battery chargers Consumer electronics n Functional Block Diagram n Typical Application VR VS RS VR B andgap Cell GND Current S hunt V R = 2.5V RS = 1 I 1000pF V alue optional VS - VR I Analog Microelectronics, Inc. Micropower Voltage Reference Diode AME385-2.5 n Package Outline SOT-23 Top View TO-92-3 Bottom View NC * + NC * + TO-92-2 Bottom View + - - - SO-8 Top View NC 1 8 + NC 2 7 NC NC 3 6 NC - 4 5 NC * The NC pin must float or be connected to - (negative) n Ordering Information P art N u m b er Accu rac y M arkin g P acka g e Op e ratin g T em p . R a n g e A M E 385D E E T 0.2% A C S ww S OT-23 -40 C to +8 5 C A M E 385D E HA 0.2% AME 385 D E HA yyww S O-8 -40 C to +8 5 C A M E 385B E E T 0.5% A B Yww S OT-23 -40 C to +8 5 C TO-9 2-3 -40 C to +8 5 C TO-9 2-2 -40 C to +8 5 C S O-8 -40 C to +8 5 C A M E 385B E A T 0.5% A M E 385B E A S 0.5% A M E 385B E HA 0.5% AME 385 BEAT yyww AME 385 BEAS yyww AME 385 B E HA yyww O O O O O O O O O O O O P leas e c ons ult AME s ales offic e or authoriz ed R ep./D is tributor for other voltage ac c urac y and pac kage type availability. 2 Analog Microelectronics, Inc. Micropower Voltage Reference Diode AME385-2.5 n Absolute Maximum Ratings P a ra m e te r M a x im um Unit 50 mA S upply Current n Recommended Operating Conditions P a ra m e te r Ra ting Unit 100 µA ~ 20m A S upply Current A m bient Tem perature Range Junction Tem perature -40 to + 85 o C -40 to + 125 o C n Thermal Information P a ra m e te r Therm al R es is tanc e M a x im u m S O T-23 325 TO -92 180 S O -8 125 U n it o C / W M ax im um Junc tion Tem perature 150 o C M ax im um Lead Tem perature ( 10 S ec ) 300 o C Caution: Stress above the listed absolute rating may cause permanent damage to the device 3 Analog Microelectronics, Inc. Micropower Voltage Reference Diode AME385-2.5 n Electrical Specifications Unless otherwise specified, TA = 0~70 o C, I = 100 µA PARAMETER SYMBOL Reference Voltage, ±0.2% VREF TEST CONDITIONS MAX UNITS 2.495 2.50 2.505 V 2.487 2.50 2.513 V 20 µA IMIN IMIN < I < 1mA 1.5 3 5 20 Reference Voltage Change With Current dVREF/I Maximum Operation Current ILmax Reverse Dynamic Impedence RDI IR= 100mA, f=20Hz 1.5 Ohm Wideband Noise (rms) Vn IR= 100mA, 10 Hz<f<10KHz 60 µV IR= 100mA, TA=25oC, T=1000 Hours 20 ppm Reference Voltage Temp. Coeff. mV 1mA < I < 20mA Long term Stability 4 TYP IREF = 100µA Reference Voltage, ±0.5% Minimum Current MIN VREFTC 20 0oC < TA < 70oC mA 100 ppm/oC Analog Microelectronics, Inc. Micropower Voltage Reference Diode AME385-2.5 0.1 Output Voltage Change vs. Current Normalized Percentage Change vs. Temperature 4 -0.1 I = 100µA -0.2 (mV) % Change of VOUT 0 -0.3 -0.4 2 0 -0.5 -2 -0.6 -50 0 50 100 150 1 0 .0 100 (m A ) O ( C) Forward Characteristic Reverse Characteristic 100µA 1.0V 10µA IR 25oC 85oC 0.125V/DIV 1µA 85oC 25oC 100nA 0.0V 0.65V 1.3V VR Transient Response 2 5 oC 5V/DIV V IN VR 1V/DIV 200µS/DIV 5 0.0V 1µA 100µA 10mA Analog Microelectronics, Inc. Micropower Voltage Reference Diode AME385-2.5 n Package Dimension SOT-23 SYMBOLS MILLIMETERS INCHES MIN MAX MIN MAX A 1.00 1.40 0.0394 0.0551 A1 0.00 0.15 0.0000 0.0059 b 0.35 0.50 0.0138 0.0197 C 0.09 0.25 0.0035 0.0098 D 2.70 3.10 0.1063 0.1220 E 1.40 1.80 0.0551 0.0709 1.90 BSC e 0.0748 BSC H 2.60 3.00 0.1024 0.1181 L 0.35 0.55 0.0138 0.0197 θ1 0o 9o 0o 9o R 0.95(TYP) 0.0374(TYP) MILLIMETERS INCHES SO-8 SYMBOLS MIN MAX MIN MAX A 1.35 1.75 0.053 0.069 A1 0.10 0.25 0.004 0.010 A2 θ 1.45 REF B 0.33 0.51 0.013 0.020 C 0.19 0.25 0.007 0.010 D 4.80 5.00 0.189 0.1970 E 3.80 4.00 0.150 0.157 e 1.27 BSC 0.050 BSC H 5.80 6.20 0.228 0.244 L 0.40 1.27 0.016 0.050 y θ 6 0.057 REF 0.10 o 0 o 8 0.004 o 0 8o Analog Microelectronics, Inc. AME385-2.5 Micropower Voltage Reference Diode n Package Dimension TO-92-3 MILLIMETERS MIN MAX INCHES MIN MAX A 4.32 4.95 0.170 0.195 b 0.36 0.51 0.014 0.020 E 3.30 3.94 0.130 0.155 e 2.41 2.67 0.095 0.105 SYMBOLS e1 1.14 1.40 0.045 0.055 L 12.70 15.49 0.500 0.610 R 2.16 2.41 0.085 0.095 S1 1.14 1.52 0.045 0.060 W 0.41 0.56 0.016 0.022 D 4.45 4.95 0.175 0.195 a 4° 6° 4° 6° NOTE: 1. PACKAGE OUTLINE EXCLUSIVE OF ANY MOLD FLASHES DIMENSION 2. PACKAGE OUTLINE EXCLUSIVE OF BURR DIMENSION TO-92-2 MILLIMETERS MIN MAX INCHES MIN MAX A 4.32 4.95 0.170 0.195 b 0.36 0.51 0.014 0.020 E 3.30 3.94 0.130 0.155 SYMBOLS e 2.41 2.67 0.095 0.105 e1 1.14 1.40 0.045 0.055 L 12.70 15.49 0.500 0.610 R 2.16 2.41 0.085 0.095 S1 1.14 1.52 0.045 0.060 W 0.41 0.56 0.016 0.022 D 4.45 4.95 0.175 0.195 a ° 4 ° 6 ° 4 ° 6 NOTE: 1. PACKAGE OUTLINE EXCLUSIVE OF ANY MOLD FLASHES DIMENSION 2. PACKAGE OUTLINE EXCLUSIVE OF BURR DIMENSION 7 www.analogmicro.com E-Mail: [email protected] Life Support Policy: These products of Analog Microelectronics, Inc. are not authorized for use as critical components in lifesupport devices or systems, without the express written approval of the president of Analog Microelectronics, Inc. Analog Microelectronics, Inc. reserves the right to make changes in the circuitry and specifications of its devices and advises its customers to obtain the latest version of relevant information. Analog Microelectronics, Inc. , October 2001 Document: 2003-DS385-2.5-D Corporate Headquarters Asia Pacific Headquarters Analog Microelectronics, Inc. AME, Inc. 3100 De La Cruz Blvd. Suite 201 Santa Clara, CA. 95054-2046 2F, 187 Kang-Chien Road, Nei-Hu District Taipei 114, Taiwan, R.O.C. Tel : (408) 988-2388 Fax: (408) 988-2489 Tel : 886 2 2627-8687 Fax : 886 2 2659-2989