AME AME385BEAT Micropower voltage reference diode Datasheet

Analog Microelectronics, Inc.
Micropower Voltage Reference Diode
AME385-2.5
n General Description
n Key Features
The AME385-2.5 is a micropower 2-terminal band-gap
voltage regulator diode. It operates over a 20µA 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 AME385-2.5 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 package as well as the space saving SOT-23.
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 ---------- 20µA to 20mA
l Wide temperature range -------- -40oC to +85oC
l Low temperature coefficient --- 100ppm/oC (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
n Typical Application
VR
VS
RS
VR
B andgap
Cell
GND
Current
S hunt
V R = 2.5V
RS =
1
I
1000pF
V alue optional
VS - VR
I
Analog Microelectronics, Inc.
Micropower Voltage Reference Diode
AME385-2.5
n Package Outline
SOT-23 Top View
TO-92-3 Bottom View
NC *
+
NC *
+
TO-92-2 Bottom View
+
-
-
-
SO-8 Top View
NC
1
8
+
NC
2
7
NC
NC
3
6
NC
-
4
5
NC
* The NC pin must float or be connected to - (negative)
n Ordering Information
P art N u m b er
Accu rac y
M arkin g
P acka g e
Op e ratin g T em p . R a n g e
A M E 385D E E T
0.2%
A C S ww
S OT-23
-40 C to +8 5 C
A M E 385D E HA
0.2%
AME
385 D E HA
yyww
S O-8
-40 C to +8 5 C
A M E 385B E E T
0.5%
A B Yww
S OT-23
-40 C to +8 5 C
TO-9 2-3
-40 C to +8 5 C
TO-9 2-2
-40 C to +8 5 C
S O-8
-40 C to +8 5 C
A M E 385B E A T
0.5%
A M E 385B E A S
0.5%
A M E 385B E HA
0.5%
AME
385
BEAT
yyww
AME
385
BEAS
yyww
AME
385 B E HA
yyww
O
O
O
O
O
O
O
O
O
O
O
O
P leas e c ons ult AME s ales offic e or authoriz ed R ep./D is tributor for other voltage ac c urac y and
pac kage type availability.
2
Analog Microelectronics, Inc.
Micropower Voltage Reference Diode
AME385-2.5
n Absolute Maximum Ratings
P a ra m e te r
M a x im um
Unit
50
mA
S upply Current
n Recommended Operating Conditions
P a ra m e te r
Ra ting
Unit
100 µA ~ 20m A
S upply Current
A m bient Tem perature Range
Junction Tem perature
-40 to + 85
o
C
-40 to + 125
o
C
n Thermal Information
P a ra m e te r
Therm al R es is tanc e
M a x im u m
S O T-23
325
TO -92
180
S O -8
125
U n it
o
C / W
M ax im um Junc tion Tem perature
150
o
C
M ax im um Lead Tem perature ( 10 S ec )
300
o
C
Caution: Stress above the listed absolute rating may cause permanent damage to the device
3
Analog Microelectronics, Inc.
Micropower Voltage Reference Diode
AME385-2.5
n Electrical Specifications
Unless otherwise specified, TA = 0~70 o C, I = 100 µA
PARAMETER
SYMBOL
Reference Voltage, ±0.2%
VREF
TEST CONDITIONS
MAX
UNITS
2.495
2.50
2.505
V
2.487
2.50
2.513
V
20
µA
IMIN
IMIN < I < 1mA
1.5
3
5
20
Reference Voltage Change With
Current
dVREF/I
Maximum Operation Current
ILmax
Reverse Dynamic Impedence
RDI
IR= 100mA, f=20Hz
1.5
Ohm
Wideband Noise (rms)
Vn
IR= 100mA, 10 Hz<f<10KHz
60
µV
IR= 100mA, TA=25oC,
T=1000 Hours
20
ppm
Reference Voltage Temp. Coeff.
mV
1mA < I < 20mA
Long term Stability
4
TYP
IREF = 100µA
Reference Voltage, ±0.5%
Minimum Current
MIN
VREFTC
20
0oC < TA < 70oC
mA
100
ppm/oC
Analog Microelectronics, Inc.
Micropower Voltage Reference Diode
AME385-2.5
0.1
Output Voltage Change vs. Current
Normalized Percentage Change vs.
Temperature
4
-0.1
I = 100µA
-0.2
(mV)
% Change of VOUT
0
-0.3
-0.4
2
0
-0.5
-2
-0.6
-50
0
50
100
150
1
0 .0
100
(m A )
O
( C)
Forward Characteristic
Reverse Characteristic
100µA
1.0V
10µA
IR
25oC
85oC
0.125V/DIV
1µA
85oC
25oC
100nA
0.0V
0.65V
1.3V
VR
Transient Response
2 5 oC
5V/DIV
V IN
VR
1V/DIV
200µS/DIV
5
0.0V
1µA
100µA
10mA
Analog Microelectronics, Inc.
Micropower Voltage Reference Diode
AME385-2.5
n Package Dimension
SOT-23
SYMBOLS
MILLIMETERS
INCHES
MIN
MAX
MIN
MAX
A
1.00
1.40
0.0394
0.0551
A1
0.00
0.15
0.0000
0.0059
b
0.35
0.50
0.0138
0.0197
C
0.09
0.25
0.0035
0.0098
D
2.70
3.10
0.1063
0.1220
E
1.40
1.80
0.0551
0.0709
1.90 BSC
e
0.0748 BSC
H
2.60
3.00
0.1024
0.1181
L
0.35
0.55
0.0138
0.0197
θ1
0o
9o
0o
9o
R
0.95(TYP)
0.0374(TYP)
MILLIMETERS
INCHES
SO-8
SYMBOLS
MIN
MAX
MIN
MAX
A
1.35
1.75
0.053
0.069
A1
0.10
0.25
0.004
0.010
A2
θ
1.45 REF
B
0.33
0.51
0.013
0.020
C
0.19
0.25
0.007
0.010
D
4.80
5.00
0.189
0.1970
E
3.80
4.00
0.150
0.157
e
1.27 BSC
0.050 BSC
H
5.80
6.20
0.228
0.244
L
0.40
1.27
0.016
0.050
y
θ
6
0.057 REF
0.10
o
0
o
8
0.004
o
0
8o
Analog Microelectronics, Inc.
AME385-2.5
Micropower Voltage Reference Diode
n Package Dimension
TO-92-3
MILLIMETERS
MIN
MAX
INCHES
MIN
MAX
A
4.32
4.95
0.170
0.195
b
0.36
0.51
0.014
0.020
E
3.30
3.94
0.130
0.155
e
2.41
2.67
0.095
0.105
SYMBOLS
e1
1.14
1.40
0.045
0.055
L
12.70
15.49
0.500
0.610
R
2.16
2.41
0.085
0.095
S1
1.14
1.52
0.045
0.060
W
0.41
0.56
0.016
0.022
D
4.45
4.95
0.175
0.195
a
4°
6°
4°
6°
NOTE:
1. PACKAGE OUTLINE EXCLUSIVE OF ANY MOLD FLASHES
DIMENSION
2. PACKAGE OUTLINE EXCLUSIVE OF BURR DIMENSION
TO-92-2
MILLIMETERS
MIN
MAX
INCHES
MIN
MAX
A
4.32
4.95
0.170
0.195
b
0.36
0.51
0.014
0.020
E
3.30
3.94
0.130
0.155
SYMBOLS
e
2.41
2.67
0.095
0.105
e1
1.14
1.40
0.045
0.055
L
12.70
15.49
0.500
0.610
R
2.16
2.41
0.085
0.095
S1
1.14
1.52
0.045
0.060
W
0.41
0.56
0.016
0.022
D
4.45
4.95
0.175
0.195
a
°
4
°
6
°
4
°
6
NOTE:
1. PACKAGE OUTLINE EXCLUSIVE OF ANY MOLD FLASHES
DIMENSION
2. PACKAGE OUTLINE EXCLUSIVE OF BURR DIMENSION
7
www.analogmicro.com
E-Mail: [email protected]
Life Support Policy:
These products of Analog Microelectronics, Inc. are not authorized for use as critical components in lifesupport devices or systems, without the express written approval of the president
of Analog Microelectronics, Inc.
Analog Microelectronics, Inc. reserves the right to make changes in the circuitry and specifications of its
devices and advises its customers to obtain the latest version of relevant information.
 Analog Microelectronics, Inc. , October 2001
Document: 2003-DS385-2.5-D
Corporate Headquarters
Asia Pacific Headquarters
Analog Microelectronics, Inc.
AME, Inc.
3100 De La Cruz Blvd. Suite 201
Santa Clara, CA. 95054-2046
2F, 187 Kang-Chien Road, Nei-Hu District
Taipei 114, Taiwan, R.O.C.
Tel : (408) 988-2388
Fax: (408) 988-2489
Tel : 886 2 2627-8687
Fax : 886 2 2659-2989
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