AME385 Analog Microelectronics, AME385 Datasheet

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AME385

Manufacturer Part Number
AME385
Description
Micropower Voltage Reference Diode
Manufacturer
Analog Microelectronics
Datasheet

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AME385-1.2
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The AME385-1.2 is a micropower 2-terminal band-gap
voltage regulator diode. It operates over a 15 A to 20mA
current range. Each circuit is trimmed at wafer sort to
provide a 0.2% and 0.5% initial tolerance. The de-
sign of the AME385-1.2 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 packages as well as the space saving SOT-23.
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1
Applications
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General Description
Functional Block Diagram
V R
GND
Portable electronics
Power supplies
Computer peripherals
Data acquisition systems
Battery chargers
Consumer electronics
Analog Microelectronics, Inc.
B andgap
Feedbac k
Cell
Current
S hunt
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Typical Application
Key Features
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Micropower Voltage Reference Diode
V alue optional
Small packages: SOT-23, TO-92, SO-8
Tolerates capacitive loads
Fixed reverse breakdown voltage of 1.235V
Tight voltage tolerance ---------- 0.20%, 0.5%
Wide operating current ---------- 15 A to 20mA
Wide temperature range -------- -40
Low temperature coefficient --- 100ppm/
Excellent transient response
1000pF
RS =
V S
RS
V R
V S - V R
I
I
V R = 1.235V
o
C to +85
o
C (max)
o
C

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AME385 Summary of contents

Page 1

... It operates over 20mA current range. Each circuit is trimmed at wafer sort to provide a 0.2% and 0.5% initial tolerance. The de- sign of the AME385-1.2 allows for a large range of load capacitances and operating currents. The low start-up current makes these part ideal for battery applications. ...

Page 2

... Analog Microelectronics, Inc. AME385-1 Package Outline SOT-23 Top View SO-8 Top View + The NC pin must float or be connected to - (nega Ordering Information Part N umber Accuracy A ME385CE ET A ME385CE HA ...

Page 3

... Analog Microelectronics, Inc. AME385-1 Absolute Maximum Ratings Parame te r Supply Current Recommended Operating Conditions Parameter Supply Current Ambient Temperature Range Junction Temperature Thermal Information Jun era ...

Page 4

... Analog Microelectronics, Inc. AME385-1 Electrical Specifications Unless otherwise specified ~70 PARAMETER Reference Voltage, 0.2% 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. 4 Micropower Voltage Reference Diode ...

Page 5

... Analog Microelectronics, Inc. AME385-1.2 Normalized Percentage Change vs. Temperature 0.1 0 -0.1 -0.2 -0.3 -0.4 -0.5 -0.6 - Reverse Characteristic 100 100nA 0.0V 0.65V V R Transient Response 5V/DIV 0.5V/DIV 200 S/DIV 5 Micropower Voltage Reference Diode I = 100 A (mV) 100 150 1.0V 0.125V/DIV 0.0V 1. Output Voltage Change vs. Current ...

Page 6

... Analog Microelectronics, Inc. AME385-1 Package Dimension SOT-23 SO-8 6 Micropower Voltage Reference Diode MILLIMETERS SYMBOLS MIN MAX A 1.00 1.40 A 0.00 0. 0.35 0.50 C 0.09 0.25 D 2.70 3.10 E 1.40 1.80 1.90 BSC e H 2.60 3.00 L 0.35 0. 0.95(TYP) MILLIMETERS SYMBOLS MIN MAX A 1.35 1.75 A 0.10 0. 1.45 REF B 0.33 0.51 C 0.19 0.25 D 4.80 5.00 E 3.80 4.00 e 1.27 BSC H 5.80 6.20 L 0.40 1. INCHES MIN MAX 0 ...

Page 7

... Analog Microelectronics, Inc. AME385-1 Package Dimension TO-92-3 TO-92-2 7 Micropower Voltage Reference Diode MILLIMETERS SYMBOLS MIN MAX A 4.32 4.95 b 0.36 0.51 E 3.30 3.94 e 2.41 2.67 e1 1.14 1.40 L 12.70 15.49 R 2.16 2.41 S1 1.14 1.52 W 0.41 0.56 D 4.45 4.95 ° ° NOTE: 1. PACKAGE OUTLINE EXCLUSIVE OF ANY MOLD FLASHES DIMENSION 2. PACKAGE OUTLINE EXCLUSIVE OF BURR DIMENSION MILLIMETERS SYMBOLS MIN MAX A 4 ...

Page 8

... These products of Analog Microelectronics, Inc. are not authorized for use as critical components in life-support devices or systems, without the express written approval of the president 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. ...

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