Analog Microelectronics, Inc.
1
AME41-ADJ
Micropower Voltage Reference Diode
n
n
n
n
n
General Description
The AME41-ADJ is a micropower 3-terminal band-gap
voltage regulator diode with a user adjustable output volt-
age. It operates over a 15
A 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 AME41-
ADJ 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
n
n
n
n
Key Features
l
Small packages: SOT-23, TO-92, SO-8
l
Tolerates capacitive loads
l
User adjustable reverse breakdown voltage
l
Tight voltage tolerance ----------
0.20%,
0.50%
l
Wide operating current ---------- 15
A 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
n
n
n
n
Typical Application
n
n
n
n
n
Applications
l
Portable electronics
l
Power supplies
l
Computer peripherals
l
Data acquisition systems
l
Battery chargers
l
Consumer electronics
n
n
n
n
n
Functional Block Diagram
V R
G ND
A DJ
B andgap
Cell
Feedbac k
Current
S hunt
V S
V R
RS =
V R =
1.27 (R1 + R2)
R1
V S - V R
I
1000pF
V alue optional
RS
R1
R2
I
Analog Microelectronics, Inc.
2
Micropower Voltage Reference Diode
AME41-ADJ
n
n
n
n
n
Ordering Information
n
n
n
n
n
Package Outline
* The NC pin must float or be connected to - (negative)
SOT-23 Top View
A D J
+
-
T O - 9 2 B o t t o m V i e w
A D J
+
-
N C
N C
N C
N C
N C
+
-
SO-8 Top View
A D J
Part Number
Accuracy
Marking
Package
Operating Temp. Range
AME41EEET
0.2%
ACYww
SOT-23
-40
O
C to +85
O
C
AME41EEHA
0.2%
AME
41EEHA
yyww
SO-8
-40
O
C to +85
O
C
AME41BEET
0.5%
ACBww
SOT-23
-40
O
C to +85
O
C
AME41BEAT
0.5%
AME
41
BEAT
yyww
TO-92
-40
O
C to +85
O
C
AME41BEHA
0.5%
AME
41BEHA
yyww
SO-8
-40
O
C to +85
O
C
Please consult AME sales office or authorized Rep./Distributor for other voltage accuracy and
package type availability.
Analog Microelectronics, Inc.
3
AME41-ADJ
Micropower Voltage Reference Diode
n
n
n
n
n
Absolute Maximum Ratings
n
n
n
n
n
Recommended Operating Conditions
n
n
n
n
n
Thermal Information
Caution: Stress above the listed absolute rating may cause permanent damage to the device
Parameter
Maximum
Unit
Supply Current
50
mA
Parameter
Rating
Unit
Supply Current
100
A ~ 20mA
Ambient Temperature Range
-40 to +85
o
C
Junction Temperature
-40 to +125
o
C
M a x im u m
U n it
S O T-23
325
TO -92
180
S O -8
124
M ax im um Junc tion Tem perature
150
o
C
M ax im um Lead Tem perature ( 10 S ec )
300
o
C
P a ra m e te r
o
C / W
Therm al R es is tanc e
Analog Microelectronics, Inc.
4
Micropower Voltage Reference Diode
AME41-ADJ
n
n
n
n
n
Electrical Specifications
Unless otherwise specified, TA
=
25
o
C, I
=
100
A
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNITS
Reference Voltage,
0.2%
1.247
1.250
1.253
V
Reference Voltage,
0.5%
1.244
1.250
1.256
V
Minimum Current
I
MIN
15
A
I
MIN
< I < 1mA
1.5
3
1mA < I < 20mA
4
8
ADJ Pin Current
I
ADJ
20
nA
Reference Voltage Temp. Coeff.
V
REFTC
0
o
C < T
A
< 70
o
C
100
ppm/
o
C
Reference Voltage Change With
Current
dV
REF/I
mV
V
REF
T
A
=
25
o
C, I
REF
=
100
A
Analog Microelectronics, Inc.
5
AME41-ADJ
Micropower Voltage Reference Diode
25
o
C
85
o
C
Forward Characteristic
85
o
C
25
o
C
1
A
100
A
10mA
0.125V/DIV
0.0V
1.0V
Reverse Characteristic
25
o
C
85
o
C
0.0V
0.65V
1.3V
V
R
100
A
10
A
1
A
100nA
I
R
V R
V
IN
5 V / D I V
0.5V/DIV
2 5
o
C
Output Voltage Change vs. Current
Current (mA)
Output Voltage Change (mV)
0.01
1
100
-1
0
1
2
-0.6
-0.5
-0.4
-0.3
-0.2
-0.1
0
0.1
-50
0
50
100
150
Normalized Percentage Change vs.
Temperature
% Change of V
OUT
(
O
C)
I = 100
A
Transient Response
200
S/DIV
PDF 
ZIP