AME, Inc.
AME41-1.2
Micropower Voltage Reference Diode
n
General Description
The AME41-1.2 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 ± 0.20% and ± 0.50% initial tolerance. The de-
sign of the AME41-1.2 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
Functional Block Diagram
VR
Bandgap
Cell
Feedback
Current
Shunt
n
Features
l
Small packages: SOT-23, TO-92, SO-8
l
Tolerates capacitive loads
l
Fixed reverse breakdown voltage of 1.25V
l
Tight voltage tolerance -------
±0.20%, ±0.5%
l
Wide operating current ------- 15µA to 20mA
l
Wide temperature range ----- -40
o
C to +85
o
C
l
Low temperature coefficient --100ppm/ C
(max)
o
GND
n
Typical Application
VS
VS
RS
RS
VR
VR
l
Excellent transient response
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Applications
l
Portable electronics
l
Power supplies
l
Computer peripherals
l
Data acquisition systems
l
Battery chargers
l
Consumer electronics
VS - VR
RS =
I
0.1µ F
Value optional
VR = 1.25V
1
AME, Inc.
AME41-1.2
Micropower Voltage Reference Diode
n
Pin Configuration
SO-8
Top View
8
7
6
5
SOT-23
Top View
AME 41-1.2
1. NC
2. NC
3. NC
4.
-
1
2
3
AME41-1.2
1.
2.
+
-
3. NC*
5. NC
6. NC
1
2
3
4
7. NC
8. +
TO-92-3
Bottom View
1
1
2
3
TO-92-2
Bottom View
AME 41-1.2
1. NC*
2.
3.
+
-
1
2
AME41-1.2
1. +
2. -
* The NC pin must float or be connected to - (negative)
2
AME, Inc.
AME41-1.2
Micropower Voltage Reference Diode
n
Ordering Information
AME41 x x x x x
Special Feature
Number of Pins
Package Type
Operating Temperature Range
Accuracy
Accuracy
Operating
Temperature Range
E: -40
O
C to 85
O
C
Package Type
Number of
Pins
Special Feature
D: 0.2%
A: 0.5%
A: TO-92
E: SOT-2X
H: SO-8
A: 8
S: 2
T: 3
L: Low Profile
Y: Lead Free & Low Profile
Z: Lead Free
3
AME, Inc.
AME41-1.2
Micropower Voltage Reference Diode
n
Ordering Information (contd.)
Part Number
AME41DEET
AME41DEETL
AME41DEETY
AME41DEETZ
AME41AEET
AME41AEETL
AME41AEETY
AME41AEETZ
Marking*
ACWww
ACWww
ACWww
ACWww
ACAww
ACAww
ACAww
ACAww
AME
41
AEAS
yyww
AME
41
AEAS
yyww
AME
41
AEAT
yyww
AME
41
AEAT
yyww
41
AEHA
yyww
41
AEHA
yyww
41
DEHA
yyww
41
DEHA
yyww
Accuracy
0.2%
0.2%
0.2%
0.2%
0.5%
0.5%
0.5%
0.5%
Package
SOT-23
TSOT-23
TSOT-23
SOT-23
SOT-23
TSOT-23
TSOT-23
SOT-23
Operating Temp. Range
- 40
o
C to + 85
o
C
- 40
o
C to + 85
o
C
- 40
o
C to + 85
o
C
- 40
o
C to + 85
o
C
- 40
o
C to + 85
o
C
- 40
o
C to + 85
o
C
- 40
o
C to + 85
o
C
- 40
o
C to + 85
o
C
- 40
o
C to + 85
o
C
AME41AEAS
0.5%
TO-92-2
AME41AEASZ
0.5%
TO-92-2
- 40
o
C to + 85
o
C
AME41AEAT
0.5%
TO-92-3
- 40
o
C to + 85
o
C
AME41AEATZ
0.5%
TO-92-3
- 40
o
C to + 85
o
C
AME41AEHA
0.5%
SO-8
- 40
o
C to + 85
o
C
AME41AEHAZ
0.5%
SO-8
- 40
o
C to + 85
o
C
AME41DEHA
0.2%
SO-8
- 40
o
C to + 85
o
C
AME41DEHAZ
0.2%
SO-8
- 40
o
C to + 85
o
C
* Package Options
Part Number
AME41XEAX
AME41XEAX-1
Package
TO-92 Taping
TO-92 Bulk
Lead Pitch
5.04mm
2.54mm
4
Note: ww & yyww represents date code
* A line on top of the first letter represents lead free plating such as ACA.
Please consult AME sales office or authorized Rep./Distributor for the availability of voltage accuracy and package
type.
AME, Inc.
AME41-1.2
Micropower Voltage Reference Diode
n
Absolute Maximum Ratings
Parameter
Supply Current
Maximum
50
Unit
mA
Caution: Stress above the listed absolute maximum rating may cause permanent damage to the device
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Recommended Operating Conditions
Parameter
Supply Current
Ambient Temperature Range
Junction Temperature
Rating
100µA ~ 20mA
-40 to +85
-40 to +125
Unit
o
C
C
o
n
Thermal Information
Parameter
SOT-23
Thermal Resistance
TO-92
SO-8
Maximum Junction Temperature
Maximum Lead Temperature ( 10 Sec)
Maximum
325
180
124
150
300
Unit
o
C/W
o
C
C
o
5
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