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
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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
Data Sheet
Parameter
TEMPERATURE COEFFICIENT
1
Grade A
Grade B
OUTPUT VOLTAGE CHANGE vs. I
IN
Symbol
TCV
OUT
ADR5040/ADR5041/ADR5043/ADR5044/ADR5045
Conditions
–40°C < T
A
< +125°C
Min
Typ
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
Max
100
75
3
8
0.2
50
60
Unit
ppm/°C
ppm/°C
mV
mV
Ω
µA
µA
µV rms
µV rms
µs
ppm
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
5.4
240
56
40
Guaranteed by design.
ADR5045 ELECTRICAL CHARACTERISTICS
I
IN
= 50 µA to 15 mA, T
A
= 25°C, unless otherwise noted.
Table 6.
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
0.8
4
100
75
4
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
4.990
4.995
V
OERR
I
IN
= 100 µA
–10
–5
+10
±0.2
+5
±0.1
mV
%
mV
%
Typ
5.000
5.000
Max
5.010
5.005
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
6.6
280
70
40
Guaranteed by design.
Rev. B | Page 5 of 16
