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Precision Micropower Shunt Mode
Voltage References
Data Sheet
FEATURES
Ultracompact SC70 and SOT-23 packages
Low temperature coefficient: 75 ppm/°C (maximum)
Pin compatible with LM4040/LM4050
Initial accuracy: ±0.1%
No external capacitor required
Wide operating current range: 50 µA to 15 mA
Extended temperature range: −40°C to +125°C
Qualified for automotive applications
ADR5040/ADR5041/ADR5043/ADR5044/ADR5045
PIN CONFIGURATION
ADR5040/ADR5041/
ADR5043/ADR5044/
ADR5045
V+
1
3
NC
V–
2
NOTES
1. NC = NO CONNECT.
2. PIN 3 MUST BE LEFT FLOATING OR
CONNECTED TO GROUND.
APPLICATIONS
Portable, battery-powered equipment
Automotives
Power supplies
Data acquisition systems
Instrumentation and process control
Energy management
Figure 1. 3-Lead SC70 (KS) and 3-Lead SOT-23 (RT)
GENERAL DESCRIPTION
Designed for space-critical applications, the ADR5040/
ADR5041/ADR5043/ADR5044/ADR5045 are high precision
shunt voltage references, housed in ultrasmall SC70 and SOT-23
packages. These voltage references are multipurpose, easy-to-use
references that can be used in a vast array of applications. They
feature low temperature drift, an initial accuracy of better than
0.1%, and fast settling time.
Available in output voltages of 2.048 V, 2.5 V, 3.0 V, 4.096 V, and
5.0 V, the advanced design of the ADR5040/ADR5041/ADR5043/
ADR5044/ADR5045 eliminates the need for compensation by an
external capacitor, yet the references are stable with any capacitive
load. The minimum operating current increases from 50 µA to
a maximum of 15 mA. This low operating current and ease of use
make these references ideally suited for handheld, battery-powered
applications. This family of references has been characterized
over the extended temperature range of −40°C to +125°C. The
ADR5041W and the ADR5044W are qualified for automotive
applications and are available in a 3-lead SOT-23 package.
Table 1. Selection Table
Part
ADR5040A
ADR5040B
ADR5041A
ADR5041B
ADR5043A
ADR5043B
ADR5044A
ADR5044B
ADR5045A
ADR5045B
Voltage (V)
2.048
2.048
2.5
2.5
3.0
3.0
4.096
4.096
5.0
5.0
Initial
Accuracy (%)
±0.2
±0.1
±0.2
±0.1
±0.2
±0.1
±0.2
±0.1
±0.2
±0.1
Temperature
Coefficient
(ppm/°C)
100
75
100
75
100
75
100
75
100
75
Rev. B
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks and registered trademarks are the property of their respective owners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
www.analog.com
Fax: 781.461.3113 ©2007–2012 Analog Devices, Inc. All rights reserved.
06526-001
ADR5040/ADR5041/ADR5043/ADR5044/ADR5045
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications ....................................................................................... 1
Pin Configuration ............................................................................. 1
General Description ......................................................................... 1
Revision History ............................................................................... 2
Specifications..................................................................................... 3
ADR5040 Electrical Characteristics .......................................... 3
ADR5041 Electrical Characteristics .......................................... 3
ADR5043 Electrical Characteristics .......................................... 4
ADR5044 Electrical Characteristics .......................................... 4
ADR5045 Electrical Characteristics .......................................... 5
Data Sheet
Absolute Maximum Ratings ............................................................6
Thermal Resistance .......................................................................6
ESD Caution...................................................................................6
Typical Performance Characteristics ..............................................7
Terminology .................................................................................... 10
Theory of Operation ...................................................................... 11
Applications Information .......................................................... 11
Outline Dimensions ....................................................................... 13
Ordering Guide .......................................................................... 14
Automotive Products ................................................................. 15
REVISION HISTORY
8/12—Rev. A to Rev. B
Changes to Features Section and General Description Section ...... 1
Updated Outline Dimensions ....................................................... 13
Moved Ordering Guide.................................................................. 14
Changes to Ordering Guide .......................................................... 14
Added Automotive Products Section .......................................... 15
12/07—Rev. 0 to Rev. A
Changes to Features.......................................................................... 1
Changes to Initial Accuracy and Temperature Coefficient
Parameters in Table 2 Through Table 6 ..........................................3
Updated Outline Dimensions ....................................................... 13
Changes to Ordering Guide .......................................................... 13
1/07—Revision 0: Initial Version
Rev. B | Page 2 of 16
Data Sheet
SPECIFICATIONS
ADR5040 ELECTRICAL CHARACTERISTICS
I
IN
= 50 µA to 15 mA, T
A
= 25°C, unless otherwise noted.
Table 2.
Parameter
OUTPUT VOLTAGE
Grade A
Grade B
INITIAL ACCURACY
Grade A
Grade B
TEMPERATURE COEFFICIENT
1
Grade A
Grade B
OUTPUT VOLTAGE CHANGE vs. I
IN
TCV
OUT
Symbol
V
OUT
ADR5040/ADR5041/ADR5043/ADR5044/ADR5045
Conditions
I
IN
= 100 µA
Min
2.044
2.046
Typ
2.048
2.048
Max
2.052
2.050
+4.096
±0.2
+2.048
±0.1
Unit
V
V
mV
%
mV
%
ppm/°C
ppm/°C
mV
mV
Ω
µA
µA
µV rms
µV rms
µs
ppm
V
OERR
I
IN
= 100 µA
–4.096
–2.048
–40°C < T
A
< +125°C
10
10
100
75
1.75
8
0.2
50
60
∆V
R
DYNAMIC OUTPUT IMPEDANCE
MINIMUM OPERATING CURRENT
VOLTAGE NOISE
TURN-ON SETTLING TIME
OUTPUT VOLTAGE HYSTERESIS
1
(∆V
R
/∆I
R
)
I
IN
e
N
t
R
∆V
OUT_HYS
I
IN
= 50 µA to 1 mA
–40°C < T
A
< +125°C
I
IN
= 1 mA to 15 mA
–40°C < T
A
< +125°C
I
IN
= 50 µA to 15 mA
T
A
= 25°C
–40°C < T
A
< +125°C
I
IN
= 100 µA; 0.1 Hz to 10 Hz
I
IN
= 100 µA; 10 Hz to 10 kHz
C
LOAD
= 0 µF
I
IN
= 1 mA
0.4
4
2.8
120
28
40
Guaranteed by design.
ADR5041 ELECTRICAL CHARACTERISTICS
I
IN
= 50 µA to 15 mA, T
A
= 25°C, unless otherwise noted.
Table 3.
Parameter
OUTPUT VOLTAGE
Grade A
Grade B
INITIAL ACCURACY
Grade A
Grade B
TEMPERATURE COEFFICIENT
1
Grade A
Grade B
OUTPUT VOLTAGE CHANGE vs. I
IN
TCV
OUT
–40°C < T
A
< +125°C
10
10
∆V
R
I
IN
= 50 µA to 1 mA
–40°C < T
A
< +125°C
I
IN
= 1 mA to 15 mA
–40°C < T
A
< +125°C
0.5
4
100
75
1.8
8
ppm/°C
ppm/°C
mV
mV
Symbol
V
OUT
Conditions
I
IN
= 100 µA
Min
2.495
2.4975
V
OERR
I
IN
= 100 µA
–5
–2.5
+5
±0.2
+2.5
±0.1
mV
%
mV
%
Typ
2.500
2.500
Max
2.505
2.5025
Unit
V
V
Rev. B | Page 3 of 16
ADR5040/ADR5041/ADR5043/ADR5044/ADR5045
Parameter
DYNAMIC OUTPUT IMPEDANCE
MINIMUM OPERATING CURRENT
VOLTAGE NOISE
TURN-ON SETTLING TIME
OUTPUT VOLTAGE HYSTERESIS
1
Data Sheet
Min
Typ
Max
0.2
50
60
Unit
Ω
µA
µA
µV rms
µV rms
µs
ppm
Symbol
(∆V
R
/∆I
R
)
I
IN
e
N
t
R
∆V
OUT_HYS
Conditions
I
IN
= 50 µA to 15 mA
T
A
= 25°C
–40°C < T
A
< +125°C
I
IN
= 100 µA; 0.1 Hz to 10 Hz
I
IN
= 100 µA; 10 Hz to 10 kHz
C
LOAD
= 0 µF
I
IN
= 1 mA
3.2
150
35
40
Guaranteed by design.
ADR5043 ELECTRICAL CHARACTERISTICS
I
IN
= 50 µA to 15 mA, T
A
= 25°C, unless otherwise noted.
Table 4.
Parameter
OUTPUT VOLTAGE
Grade A
Grade B
INITIAL ACCURACY
Grade A
Grade B
TEMPERATURE COEFFICIENT
1
Grade A
Grade B
OUTPUT VOLTAGE CHANGE vs. I
IN
TCV
OUT
–40°C < T
A
< +125°C
10
10
∆V
R
I
IN
= 50 µA to 1 mA
–40°C < T
A
< +125°C
I
IN
= 1 mA to 15 mA
–40°C < T
A
< +125°C
I
IN
= 50 µA to 15 mA
T
A
= 25°C
–40°C < T
A
< +125°C
I
IN
= 100 µA; 0.1 Hz to 10 Hz
I
IN
= 100 µA; 10 Hz to 10 kHz
C
LOAD
= 0 µF
I
IN
= 1 mA
0.7
4
100
75
2.2
8
0.2
50
60
ppm/°C
ppm/°C
mV
mV
Ω
µA
µA
µV rms
µV rms
µs
ppm
Symbol
V
OUT
Conditions
I
IN
= 100 µA
Min
2.994
2.997
V
OERR
I
IN
= 100 µA
–6
–3
+6
±0.2
+3
±0.1
mV
%
mV
%
Typ
3.000
3.000
Max
3.006
3.003
Unit
V
V
DYNAMIC OUTPUT IMPEDANCE
MINIMUM OPERATING CURRENT
VOLTAGE NOISE
TURN-ON SETTLING TIME
OUTPUT VOLTAGE HYSTERESIS
1
(∆V
R
/∆I
R
)
I
IN
e
N
t
R
∆V
OUT_HYS
4.3
180
42
40
Guaranteed by design.
ADR5044 ELECTRICAL CHARACTERISTICS
I
IN
= 50 µA to 15 mA, T
A
= 25°C, unless otherwise noted.
Table 5.
Parameter
OUTPUT VOLTAGE
Grade A
Grade B
INITIAL ACCURACY
Grade A
Grade B
Symbol
V
OUT
Conditions
I
IN
= 100 µA
Min
4.088
4.092
V
OERR
I
IN
= 100 µA
–8.192
–4.096
+8.192
±0.2
+4.096
±0.1
mV
%
mV
%
Typ
4.096
4.096
Max
4.104
4.100
Unit
V
V
Rev. B | Page 4 of 16
Analog electronics
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