AME, Inc.
AME40
Micropower Voltage Reference Diode
n
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.
n
Key Features
l
Small packages: SOT-23, TO-92, SO-8
l
Tolerates capacitive loads
l
Fixed reverse breakdown voltage of 2.5V
l
Tight voltage tolerance ----------
±0.20%, ±0.50%
l
Wide operating current ---------- 40µA to 20mA
l
Wide temperature range -------- -40
o
C to +85
o
C
l
Low temperature coefficient --- 100ppm/
o
C (max)
l
Excellent transient response
n
Applications
l
l
l
l
l
l
Portable electronics
Power supplies
Computer peripherals
Data acquisition systems
Battery chargers
Consumer electronics
n
Functional Block Diagram
VR
n
Typical Application
VS
RS
B andgap
Cell
Current
S hunt
VR
VR=2.5V
GND
0.1µF
Value optional
I
RS =
VS -VR
I
1
AME, Inc.
AME40
Micropower Voltage Reference Diode
n
Package Outline
SOT-23 Top View
NC *
TO-92-3 Bottom View
TO-92-2 Bottom View
NC *
+
-
+
-
+
-
SO-8 Top View
NC
NC
NC
-
1
2
3
4
8
7
6
5
+
NC
NC
NC
* The NC pin must float or be connected to - (negative)
n
Ordering Information
Part Number
AME40BEET
Accuracy
0.2%
Marking
ACUww
AME
40BEHA
yyww
ABZww
AME
40
AEAS
yyww
AME
40
AEAT
yyww
AME
40AEHA
yyww
Package Operating Temp. Range
SOT-23
-40
O
C to +85
O
C
AME40BEHA
0.2%
SO-8
-40
O
C to +85
O
C
AME40AEET
0.5%
SOT-23
-40
O
C to +85
O
C
AME40AEAS
0.5%
TO-92-2
-40
O
C to +85
O
C
AME40AEAT
0.5%
TO-92-3
-40
O
C to +85
O
C
AME40AEHA
0.5%
SO-8
-40
O
C to +85
O
C
2
Please consult AME sales office or authorized Rep./Distributor for other voltage accuracy and
package type availability.
AME, Inc.
AME40
Micropower Voltage Reference Diode
n
Absolute Maximum Ratings
Parameter
Supply Current
Maximum
20
Unit
mA
Caution: Stress above the listed absolute maximum rating may cause permanent damage to the device
n
Recommended Operating Conditions
Parameter
Supply Current
Ambient Temperature Range
Junction Temperature
Rating
60
µ
A ~ 12mA
-40 to +85
-40 to +125
o
Unit
C
C
o
n
Thermal Information
Parameter
SOT-23
Thermal Resistance
TO-92
Maximum Junction Temperature
Maximum Lead Temperature ( 10 Sec)
180
150
300
o
Maximum
336
o
Unit
C/W
C
C
o
3
AME, Inc.
AME40
Micropower Voltage Reference Diode
n
Electrical Specifications
Unless otherwise specified, TA = 25
o
C, I = 100
µ
A
PARAMETER
Reference Voltage,
±
0.2%
V
REF
Reference Voltage,
±
0.5%
Minimum Current
Reference Voltage Change With
Current
Reference Voltage Temp. Coeff.
I
MIN
I
MIN
< I < 1mA
dV
REF/I
1mA < I < 20mA
V
REFTC
0
o
C < T
A
< 70
o
C
4
8
100
ppm/
o
C
1.5
SYMBOL
TEST CONDITIONS
T
A
= 25 C, I
REF
= 100
µ
A
o
MIN
2.495
2.487
TYP
2.500
2.500
MAX
2.505
2.513
40
3
UNITS
V
V
µ
A
mV
4
AME, Inc.
AME40
Normalized Percentage Change vs.
Temperature
0.1
0
25 C
o
Micropower Voltage Reference Diode
Output Voltage Change vs. Current
% Change of V
OUT
-0.1
-0.2
-0.3
-0.4
-0.5
0 .5 V /D IV
VR
I = 100µA
5 V /D IV
V
IN
-0.6
-50
0
50
100
150
(
O
C)
Reverse Characteristic
100µA
1.0V
Forward Characteristic
10µA
I
R
1µA
85
o
C
25
o
C
0.125V/div
25
o
C
85
o
C
100nA
0.0V
0.65V
1.3V
0.0V
1µA
100µA
10mA
V
R
Transient Response
25 C
o
5V/DIV
V
IN
VR
0.5V/DIV
200µS/DIV
5
Wireless Connectivity
京公网安备 11010802033920号
EEWORLD
