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PDF AME385AEAT Data sheet ( Hoja de datos )
| Número de pieza | AME385AEAT | |
| Descripción | Micropower Voltage Reference Diode | |
| Fabricantes | Analog Microelectronics | |
| Logotipo |  |
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Analog Microelectronics, Inc.
AME385-1.2
Micropower Voltage Reference Diode
n General Description
The AME385-1.2 is a micropower 2-terminal band-gap
voltage regulator diode. It operates over a 15µA 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.
n Key Features
l Small packages: SOT-23, TO-92, SO-8
l Tolerates capacitive loads
l Fixed reverse breakdown voltage of 1.235V
l Tight voltage tolerance ---------- ±0.20%, ±0.5%
l Wide operating current ---------- 15µA to 20mA
l Wide temperature range -------- -40oC to +85oC
l Low temperature coefficient --- 100ppm/oC (max)
l Excellent transient response
n Applications
l Portable electronics
l Power supplies
l Computer peripherals
l Data acquisition systems
l Battery chargers
l Consumer electronics
n Functional Block Diagram
VR
Bandgap
Cell
Feedback
Current
Shunt
GND
n Typical Application
VS
RS
VR
1000pF
Value optional
VR = 1.235V
I
VS - VR
RS =
I
1
1 page  
Analog Microelectronics, Inc.
AME385-1.2
Micropower Voltage Reference Diode
Normalized Percentage Change vs.
Temperature
0.1
0
-0.1
-0.2 I = 100µA
-0.3
-0.4
-0.5
-0.6
-50
100µA
0 50 100
( OC)
Reverse Characteristic
150
Output Voltage Change vs. Current
2
1
(mV)
0
-1
0.0
1
(mA)
Forward Characteristic
1.0V
100
10µA
IR
1µA
85oC
25oC
100nA
0.0V
0.65V
VR
Transient Response
1.3V
5V/DIV
VIN
25oC
0.125V/DIV
0.0V
1µA
25oC
85oC
100µA
10mA
0.5V/DIV
VR
200µS/DIV
5
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet AME385AEAT.PDF ] | |
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