Analog Microelectronics, Inc.
AME40
Micropower Voltage Reference Diode
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General Description
The AME40 is a micropower 2-terminal band-gap voltage
regulator diode. It operates over a 40µA 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
AME40 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,
SO-8 packages as well as the space saving SOT-23.
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Key Features
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Small packages: SOT-23, TO-92, SO-8
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Tolerates capacitive loads
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Fixed reverse breakdown voltage of 2.5V
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Tight voltage tolerance ----------
±0.20%, ±0.50%
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Wide operating current ---------- 40µA to 20mA
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Wide temperature range -------- -40
o
C to +85
o
C
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Low temperature coefficient --- 100ppm/
o
C (max)
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Excellent transient response
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Applications
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Portable electronics
Power supplies
Computer peripherals
Data acquisition systems
Battery chargers
Consumer electronics
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Functional Block Diagram
VR
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Typical Application
VS
RS
VR
B andgap
Cell
Current
S hunt
1000pF
V alue optional
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V R = 2.5V
GND
RS =
VS - VR
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AME [ ANALOG MICROELECTRONICS ]
