AME385DEHA

Analog Microelectronics, Inc. AME385-2.5 Micropower Voltage Reference Diode n General Description 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. n Key Features 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 VR n Typical Application VS RS VR B andgap Cell Current S hunt 1000pF V alue optional I V R = 2.5V GND RS = VS - VR I 1 Analog Microelectronics, Inc. AME385-2.5 Micropower Voltage Reference Diode n Package Outline SOT-23 Top View NC * TO-92-3 Bottom View TO-92-2 Bottom View NC * + - + - + - SO-8 Top View NC NC NC 1 2 3 4 8 7 6 5 + NC NC NC * The NC pin must float or be connected to - (negative) n Ordering Information P art N u m b er A M E 385D E E T Accu rac y 0.2% M arkin g A C S ww AME 385 D E HA yyww A B Yww AME 385 BEAT yyww AME 385 BEAS yyww AME 385 B E HA yyww P acka g e S OT-23 Op e ratin g T em p . R a n g e -40 C to +8 5 C O O A M E 385D E HA 0.2% S O-8 -40 C to +8 5 C O O O O A M E 385B E E T 0.5% S OT-23 -40 C to +8 5 C A M E 385B E A T 0.5% TO-9 2-3 -40 C to +8 5 C O O A M E 385B E A S 0.5% TO-9 2-2 -40 C to +8 5 C O O A M E 385B E HA 0.5% S O-8 -40 C to +8 5 C 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. AME385-2.5 Micropower Voltage Reference Diode n Absolute Maximum Ratings P a ra m e te r S upply Current M a x im um 50 Unit mA n Recommended Operating Conditions P a ra m e te r S upply Current A m bient Tem perature Range Junction Tem perature Ra ting 100 µA ~ 20m A -40 to + 85 -40 to + 125 o Unit C C o n Thermal Information P a ra m e te r S O T-23 Therm al R es is tanc e TO -92 S O -8 M ax im um Junc tion Tem perature M ax im um Lead Tem perature ( 10 S ec ) M a x im u m 325 180 125 150 300 o o U n it C/W C C o Caution: Stress above the listed absolute rating may cause permanent damage to the device 3 Analog Microelectronics, Inc. AME385-2.5 Micropower Voltage Reference Diode n Electrical Specifications Unless otherwise specified, TA = 0~70 o C, I = 100 µA PARAMETER Reference Voltage, ±0.2% VREF Reference Voltage, ±0.5% Minimum Current Reference Voltage Change With Current Maximum Operation Current Reverse Dynamic Impedence Wideband Noise (rms) Long term Stability Reference Voltage Temp. Coeff. VREFTC IMIN IMIN < I < 1mA dVREF/I 1mA < I < 20mA ILmax RDI Vn IR= 100mA, f=20Hz IR= 100mA, 10 Hz