AME, Inc.
AME40
Micropower Voltage Reference Diode
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General Description
The AME40 is a micropower 2-terminal band-gap volt-
age 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 de-
sign of the AME40 allows for a large range of load capaci-
tances 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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Functional Block Diagram
VR
Bandgap
Cell
Current
Shunt
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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%, ±0.5%
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Wide operating current ------- 40µA to 20mA
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Wide temperature range ----- -40
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C to +85
o
C
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Low temperature coefficient --100ppm/ C
(max)
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GND
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Typical Application
VS
RS
RS
VR
VR
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Excellent transient response
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Applications
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Portable electronics
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Power supplies
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Computer peripherals
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Data acquisition systems
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Battery chargers
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Consumer electronics
VS - VR
RS =
I
0.1µ F
Value optional
VR = 2.5V
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AME [ ANALOG MICROELECTRONICS ]
