ADR5041AKSZ-R2 [ADI]
Precision Micropower Shunt Mode Voltage References; 精密微功耗并联模式电压基准
| 型号： | ADR5041AKSZ-R2 |
| 厂家： | 
ADI |
| 描述： | Precision Micropower Shunt Mode Voltage References |
| 文件： | 总16页 (文件大小：425K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Precision Micropower Shunt Mode
Voltage References
ADR5040/ADR5041/ADR5043/ADR5044/ADR5045
Data Sheet
FEATURES
PIN CONFIGURATION
ADR5040/ADR5041/
ADR5043/ADR5044/
Ultracompact SC70 and SOT-23 packages
Low temperature coefficient: 75 ppm/°C (maximum)
Pin compatible with LM4040/LM4050
Initial accuracy: 0.1%
ADR5045
V+
1
2
No external capacitor required
3
NC
Wide operating current range: 50 µA to 15 mA
Extended temperature range: −40°C to +125°C
Qualified for automotive applications
V–
NOTES
1. NC = NO CONNECT.
2. PIN 3 MUST BE LEFT FLOATING OR
CONNECTED TO GROUND.
APPLICATIONS
Figure 1. 3-Lead SC70 (KS) and 3-Lead SOT-23 (RT)
Portable, battery-powered equipment
Automotives
Power supplies
Data acquisition systems
Instrumentation and process control
Energy management
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.
Table 1. Selection Table
Temperature
Coefficient
(ppm/°C)
Initial
Part
Voltage (V) Accuracy (%)
ADR5040A 2.048
ADR5040B 2.048
ADR5041A 2.5
ADR5041B 2.5
ADR5043A 3.0
ADR5043B 3.0
ADR5044A 4.096
ADR5044B 4.096
ADR5045A 5.0
ADR5045B 5.0
0.2
0.1
0.2
0.1
0.2
0.1
0.2
0.1
0.2
0.1
100
75
100
75
100
75
100
75
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.
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.
ADR5040/ADR5041/ADR5043/ADR5044/ADR5045
TABLE OF CONTENTS
Data Sheet
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
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
Parameters in Table 2 Through Table 6..........................................3
Updated Outline Dimensions....................................................... 13
Changes to Ordering Guide.......................................................... 13
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
1/07—Revision 0: Initial Version
12/07—Rev. 0 to Rev. A
Changes to Features.......................................................................... 1
Changes to Initial Accuracy and Temperature Coefficient
Rev. B | Page 2 of 16
Data Sheet
ADR5040/ADR5041/ADR5043/ADR5044/ADR5045
SPECIFICATIONS
ADR5040 ELECTRICAL CHARACTERISTICS
IIN = 50 µA to 15 mA, TA = 25°C, unless otherwise noted.
Table 2.
Parameter
OUTPUT VOLTAGE
Grade A
Symbol
Conditions
Min
Typ
Max
Unit
VOUT
IIN = 100 µA
2.044
2.046
2.048
2.048
2.052
2.050
V
V
Grade B
INITIAL ACCURACY
Grade A
VOERR
IIN = 100 µA
–4.096
–2.048
+4.096
0.2
+2.048
0.1
mV
%
mV
%
Grade B
TEMPERATURE COEFFICIENT1
Grade A
Grade B
TCVOUT
∆VR
–40°C < TA < +125°C
10
10
100
75
ppm/°C
ppm/°C
OUTPUT VOLTAGE CHANGE vs. IIN
IIN = 50 µA to 1 mA
–40°C < TA < +125°C
IIN = 1 mA to 15 mA
–40°C < TA < +125°C
IIN = 50 µA to 15 mA
TA = 25°C
–40°C < TA < +125°C
IIN = 100 µA; 0.1 Hz to 10 Hz
IIN = 100 µA; 10 Hz to 10 kHz
CLOAD = 0 µF
0.4
4
1.75
mV
8
mV
DYNAMIC OUTPUT IMPEDANCE
MINIMUM OPERATING CURRENT
(∆VR/∆IR)
IIN
0.2
50
60
Ω
µA
µA
VOLTAGE NOISE
eN
2.8
120
28
µV rms
µV rms
µs
TURN-ON SETTLING TIME
tR
OUTPUT VOLTAGE HYSTERESIS
∆VOUT_HYS
IIN = 1 mA
40
ppm
1 Guaranteed by design.
ADR5041 ELECTRICAL CHARACTERISTICS
IIN = 50 µA to 15 mA, TA = 25°C, unless otherwise noted.
Table 3.
Parameter
OUTPUT VOLTAGE
Grade A
Symbol
Conditions
Min
Typ
Max
Unit
VOUT
IIN = 100 µA
2.495
2.4975
2.500
2.500
2.505
2.5025
V
V
Grade B
INITIAL ACCURACY
Grade A
VOERR
IIN = 100 µA
–5
+5
mV
%
mV
%
0.2
+2.5
0.1
Grade B
–2.5
TEMPERATURE COEFFICIENT1
Grade A
Grade B
TCVOUT
∆VR
–40°C < TA < +125°C
10
10
100
75
ppm/°C
ppm/°C
OUTPUT VOLTAGE CHANGE vs. IIN
IIN = 50 µA to 1 mA
–40°C < TA < +125°C
IIN = 1 mA to 15 mA
–40°C < TA < +125°C
0.5
4
1.8
8
mV
mV
Rev. B | Page 3 of 16
ADR5040/ADR5041/ADR5043/ADR5044/ADR5045
Data Sheet
Parameter
Symbol
(∆VR/∆IR)
IIN
Conditions
Min
Typ
Max
0.2
50
Unit
Ω
DYNAMIC OUTPUT IMPEDANCE
MINIMUM OPERATING CURRENT
IIN = 50 µA to 15 mA
TA = 25°C
µA
–40°C < TA < +125°C
IIN = 100 µA; 0.1 Hz to 10 Hz
IIN = 100 µA; 10 Hz to 10 kHz
CLOAD = 0 µF
60
µA
VOLTAGE NOISE
eN
3.2
150
35
µV rms
µV rms
µs
TURN-ON SETTLING TIME
tR
OUTPUT VOLTAGE HYSTERESIS
∆VOUT_HYS
IIN = 1 mA
40
ppm
1 Guaranteed by design.
ADR5043 ELECTRICAL CHARACTERISTICS
IIN = 50 µA to 15 mA, TA = 25°C, unless otherwise noted.
Table 4.
Parameter
OUTPUT VOLTAGE
Grade A
Symbol
Conditions
Min
Typ
Max
Unit
VOUT
IIN = 100 µA
2.994
2.997
3.000
3.000
3.006
3.003
V
V
Grade B
INITIAL ACCURACY
Grade A
VOERR
IIN = 100 µA
–6
–3
+6
0.2
+3
0.1
mV
%
mV
%
Grade B
TEMPERATURE COEFFICIENT1
Grade A
Grade B
TCVOUT
∆VR
–40°C < TA < +125°C
10
10
100
75
ppm/°C
ppm/°C
OUTPUT VOLTAGE CHANGE vs. IIN
IIN = 50 µA to 1 mA
–40°C < TA < +125°C
IIN = 1 mA to 15 mA
–40°C < TA < +125°C
IIN = 50 µA to 15 mA
TA = 25°C
–40°C < TA < +125°C
IIN = 100 µA; 0.1 Hz to 10 Hz
IIN = 100 µA; 10 Hz to 10 kHz
CLOAD = 0 µF
0.7
4
2.2
mV
8
mV
DYNAMIC OUTPUT IMPEDANCE
MINIMUM OPERATING CURRENT
(∆VR/∆IR)
IIN
0.2
50
60
Ω
µA
µA
VOLTAGE NOISE
eN
4.3
180
42
µV rms
µV rms
µs
TURN-ON SETTLING TIME
tR
OUTPUT VOLTAGE HYSTERESIS
∆VOUT_HYS
IIN = 1 mA
40
ppm
1 Guaranteed by design.
ADR5044 ELECTRICAL CHARACTERISTICS
IIN = 50 µA to 15 mA, TA = 25°C, unless otherwise noted.
Table 5.
Parameter
OUTPUT VOLTAGE
Grade A
Symbol
Conditions
Min
Typ
Max
Unit
VOUT
IIN = 100 µA
4.088
4.092
4.096
4.096
4.104
4.100
V
V
Grade B
INITIAL ACCURACY
Grade A
VOERR
IIN = 100 µA
–8.192
–4.096
+8.192
0.2
+4.096
0.1
mV
%
mV
%
Grade B
Rev. B | Page 4 of 16
Data Sheet
ADR5040/ADR5041/ADR5043/ADR5044/ADR5045
Parameter
TEMPERATURE COEFFICIENT1
Symbol
Conditions
Min
Typ
Max
Unit
TCVOUT
–40°C < TA < +125°C
Grade A
Grade B
10
10
100
75
ppm/°C
ppm/°C
OUTPUT VOLTAGE CHANGE vs. IIN
∆VR
IIN = 50 µA to 1 mA
–40°C < TA < +125°C
IIN = 1 mA to 15 mA
–40°C < TA < +125°C
IIN = 50 µA to 15 mA
TA = 25°C
0.7
4
3
mV
8
mV
DYNAMIC OUTPUT IMPEDANCE
MINIMUM OPERATING CURRENT
(∆VR/∆IR)
IIN
0.2
50
60
Ω
µA
µA
–40°C < TA < +125°C
IIN = 100 µA; 0.1 Hz to 10 Hz
IIN = 100 µA; 10 Hz to 10 kHz
CLOAD = 0 µF
VOLTAGE NOISE
eN
5.4
240
56
µV rms
µV rms
µs
TURN-ON SETTLING TIME
tR
OUTPUT VOLTAGE HYSTERESIS
∆VOUT_HYS
IIN = 1 mA
40
ppm
1 Guaranteed by design.
ADR5045 ELECTRICAL CHARACTERISTICS
IIN = 50 µA to 15 mA, TA = 25°C, unless otherwise noted.
Table 6.
Parameter
OUTPUT VOLTAGE
Grade A
Symbol
Conditions
Min
Typ
Max
Unit
VOUT
IIN = 100 µA
4.990
4.995
5.000
5.000
5.010
5.005
V
V
Grade B
INITIAL ACCURACY
Grade A
VOERR
IIN = 100 µA
–10
–5
+10
0.2
+5
mV
%
mV
%
Grade B
0.1
TEMPERATURE COEFFICIENT1
Grade A
Grade B
TCVOUT
∆VR
–40°C < TA < +125°C
10
10
100
75
ppm/°C
ppm/°C
OUTPUT VOLTAGE CHANGE vs. IIN
IIN = 50 µA to 1 mA
–40°C < TA < +125°C
IIN = 1 mA to 15 mA
–40°C < TA < +125°C
IIN = 50 µA to 15 mA
TA = 25°C
–40°C < TA < +125°C
IIN = 100 µA; 0.1 Hz to 10 Hz
IIN = 100 µA; 10 Hz to 10 kHz
CLOAD = 0 µF
0.8
4
4
mV
8
mV
DYNAMIC OUTPUT IMPEDANCE
MINIMUM OPERATING CURRENT
(∆VR/∆IR)
IIN
0.2
50
60
Ω
µA
µA
VOLTAGE NOISE
eN
6.6
280
70
µV rms
µV rms
µs
TURN-ON SETTLING TIME
tR
OUTPUT VOLTAGE HYSTERESIS
∆VOUT_HYS
IIN = 1 mA
40
ppm
1 Guaranteed by design.
Rev. B | Page 5 of 16
ADR5040/ADR5041/ADR5043/ADR5044/ADR5045
ABSOLUTE MAXIMUM RATINGS
Data Sheet
THERMAL RESISTANCE
Ratings apply at 25°C, unless otherwise noted.
θJA is specified for the worst-case conditions, that is, a device
soldered in a circuit board for surface-mount packages.
Table 7.
Parameter
Rating
Table 8. Thermal Resistance
Reverse Current
25 mA
Forward Current
20 mA
Package Type
θJA
θJC
Unit
Storage Temperature Range
Extended Temperature Range
Junction Temperature Range
Lead Temperature (Soldering, 60 sec)
–65°C to +150°C
–40°C to +125°C
–65°C to +150°C
300°C
177.4
102
3-Lead SC70 (KS)
580.5
270
°C/W
°C/W
3-Lead SOT-23 (RT)
Stresses above those listed under Absolute Maximum Ratings
may cause permanent damage to the device. This is a stress
rating only; functional operation of the device at these or any
other conditions above those indicated in the operational
section of this specification is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect
device reliability.
ESD CAUTION
Rev. B | Page 6 of 16
Data Sheet
ADR5040/ADR5041/ADR5043/ADR5044/ADR5045
TYPICAL PERFORMANCE CHARACTERISTICS
TA = 25°C, IIN = 100 µA, unless otherwise noted.
6
15
I
= 150µA
R
I
= 150µA
R
4
2
10
5
0
0
–2
–4
–5
–10
–15
–6
–8
–40 –25 –10
5
20
35
50
65
80
95 110 125
–40 –25 –10
5
20
35
50
65
80
95 110 125
TEMPERATURE (°C)
TEMPERATURE (°C)
Figure 2. ADR5041 VOUT Change vs. Temperature
Figure 5. ADR5045 VOUT Change vs. Temperature
5
8
6
4
4
3
2
1
–40°C
2
0
+125°C
+25°C
–2
–4
–6
–8
+125°C
+25°C
–40°C
0
0
5
10
15
20
0
5
10
15
20
I
(mA)
I
(mA)
SHUNT
SHUNT
Figure 3. ADR5041 Reverse Voltage Change vs. ISHUNT
Figure 6. ADR5045 Reverse Voltage Change vs. ISHUNT
V
IN
V
IN
V
OUT
V
OUT
10µs/DIV
10µs/DIV
Figure 4. ADR5041 Start-Up Characteristics
Figure 7. ADR5045 Start-Up Characteristics
Rev. B | Page 7 of 16
ADR5040/ADR5041/ADR5043/ADR5044/ADR5045
Data Sheet
+25µA
+25µA
–25µA
–25µA
I
R
= 100µA ± 25µA
I
= 100mA ± 25µA
SHUNT
= 100kΩ
SHUNT
R = 100kΩ
L
L
10µs/DIV
40µs/DIV
Figure 8. ADR5041 Load Transient Response
Figure 11. ADR5045 Load Transient Response
+250µA
–250µA
+250µA
–250µA
I
= 1mA ± 250µA
= 10kΩ
I
= 1mA ± 250µA
= 10kΩ
SHUNT
R
SHUNT
R
L
L
10µs/DIV
10µs/DIV
Figure 9. ADR5041 Transient Response
Figure 12. ADR5045 Transient Response
+2.5mA
–2.5mA
+2.5mA
–2.5mA
I
= 10mA ± 2.5mA
I
SHUNT
= 10mA ± 2.5mA
SHUNT
R
= 1kΩ
R
= 1kΩ
L
L
10µs/DIV
10µs/DIV
Figure 10. ADR5041 Transient Response
Figure 13. ADR5045 Transient Response
Rev. B | Page 8 of 16
Data Sheet
ADR5040/ADR5041/ADR5043/ADR5044/ADR5045
10k
10k
C = 0µF
C = 0µF
1k
1k
100
100
I
= 150µA
IN
I
= 150µA
IN
10
1
10
1
C = 1µF
C = 1µF
I
= 1mA
IN
I
= 1mA
IN
0.1
100
0.1
100
1k
10k
FREQUENCY (Hz)
100k
1M
1k
10k
FREQUENCY (Hz)
100k
1M
Figure 14. ADR5041 Output Impedance vs. Frequency
Figure 17. ADR5045 Output Impedance vs. Frequency
10k
10k
1k
1k
1
10
100
1k
10k
1
10
100
1k
10k
FREQUENCY (Hz)
FREQUENCY (Hz)
Figure 18. ADR5045 Voltage Noise Density
Figure 15. ADR5041 Voltage Noise Density
100
90
2.048V
2.5V
80
70
60
50
40
30
20
10
3V
4.096V 5V
0
0
1
2
3
4
5
6
REVERSE VOLTAGE (V)
Figure 16. ADR504x Reverse Characteristics and Minimum Operating Current
Rev. B | Page 9 of 16
ADR5040/ADR5041/ADR5043/ADR5044/ADR5045
TERMINOLOGY
Data Sheet
Thermal Hysteresis
Temperature Coefficient
The change in output voltage after the device is cycled through
temperatures ranging from +25°C to −40°C, then to +125°C, and
back to +25°C. This is common in precision reference and is
caused by thermal-mechanical package stress. Changes in envi-
ronmental storage temperature, board mounting temperature, and
the operating temperature are some of the factors that can
contribute to thermal hysteresis. The following equation
expresses a typical value from a sample of parts put through
such a cycle:
The change in output voltage with respect to operating temperature
changes. It is normalized by an output voltage of 25°C. This
parameter is expressed in ppm/°C and is determined by the
following equation:
VOUT
(
T2
25°C
)
−VOUT
(
T1
)
ppm
°C
TCVOUT
=
×106
(1)
VO
(
)
×
(
T2 −T1
)
UT
where:
V
V
V
OUT(25°C) = VOUT at 25°C.
OUT(T1) = VOUT at Temperature 1.
OUT(T2) = VOUT at Temperature 2.
VOUT ] HYS = VOUT
(
25°C
)
−VOUT ]TC
VOUT
(
25°C −VOUT ]TC
)
(2)
VOUT ] HYS
[
ppm
]
=
×106
VOUT 25°C
( )
where:
V
V
OUT(25°C) = VOUT at 25°C.
OUT_TC = VOUT at 25°C after a temperature cycle from +25°C to
−40°C, then to +125°C, and back to +25°C.
Rev. B | Page 10 of 16
Data Sheet
ADR5040/ADR5041/ADR5043/ADR5044/ADR5045
THEORY OF OPERATION
V
S
The ADR504x family uses the band gap concept to produce
a stable, low temperature coefficient voltage reference suitable
for high accuracy data acquisition components and systems. The
devices use the physical nature of a silicon transistor base-emitter
voltage in the forward-biased operating region. All such transistors
have approximately a −2 mV/°C temperature coefficient (TC),
making them unsuitable for direct use as a low temperature
coefficient reference. Extrapolation of the temperature charac-
teristic of any one of these devices to absolute zero (with the
collector current proportional to the absolute temperature),
however, reveals that its VBE approaches approximately the
silicon band gap voltage. Therefore, if a voltage develops with
an opposing temperature coefficient to sum the VBE, a zero
temperature coefficient reference results.
R
I
+ I
L
BIAS
IN
V
OUT
I
L
I
IN
ADR5040/ADR5041/
ADR5043/ADR5044/
ADR5045
Figure 19. Shunt Reference
Precision Negative Voltage Reference
The ADR5040/ADR5041/ADR5043/ADR5044/ADR5045 are
suitable for applications where a precise negative voltage is desired.
Figure 20 shows the ADR5045 configured to provide a negative
output. Caution should be exercised in using a low temperature
sensitive resistor to avoid errors from the resistor.
APPLICATIONS INFORMATION
The ADR5040/ADR5041/ADR5043/ADR5044/ADR5045 are
a series of precision shunt voltage references. They are designed
to operate without an external capacitor between the positive
and negative terminals. If a bypass capacitor is used to filter the
supply, the references remain stable.
ADR5045
V
OUT
–5V
R
BIAS
For a stable voltage, all shunt voltage references require an
external bias resistor (RBIAS) between the supply voltage and the
reference (see Figure 19). The RBIAS sets the current that flows
through the load (IL) and the reference (IIN). Because the load
and the supply voltage can vary, the RBIAS needs to be chosen
based on the following considerations:
V
CC
Figure 20. Negative Precision Reference Configuration
Stacking the ADR504x for User-Definable Outputs
Multiple ADR504x parts can be stacked together to allow the
user to obtain a desired higher voltage. Figure 21a shows three
ADR5045 devices configured to give 15 V. The bias resistor,
RBIAS must be small enough to supply the minimum IIN current
R
BIAS, is chosen using Equation 3, noting that the same bias current
to the ADR5040/ADR5041/ADR5043/ADR5044/ADR5045,
even when the supply voltage is at its minimum value and
the load current is at its maximum value.
flows through all the shunt references in series. Figure 21b shows
three ADR5045 devices stacked together to give −15 V. RBIAS is
calculated in the same manner as before. Parts of different voltages
can also be added together; that is, an ADR5041 and an ADR5045
can be added together to give an output of +7.5 V or −7.5 V, as
desired. Note, however, that the initial accuracy error is the sum
of the errors of all the stacked parts, as are the temperature
coefficient and output voltage change vs. input current.
RBIAS must be large enough so that IIN does not exceed 15 mA
when the supply voltage is at its maximum value and the
load current is at its minimum value.
Given these conditions, RBIAS is determined by the supply
voltage (VS), the ADR5040/ADR5041/ADR5043/ADR5044/
ADR5045 load and operating current (IL and IIN), and the
ADR5040/ADR5041/ADR5043/ADR5044/ADR5045 output
voltage (VOUT).
V
DD
R
ADR5045
ADR5045
ADR5045
BIAS
VS VOUT
RBIAS
(3)
+15V
IL IIN
ADR5045
ADR5045
ADR5045
–15V
R
BIAS
–V
DD
(a)
(b)
Figure 21. 15 V Output with Stacked ADR5045 Devices
Rev. B | Page 11 of 16
ADR5040/ADR5041/ADR5043/ADR5044/ADR5045
Data Sheet
Adjustable Precision Voltage Source
Programmable Current Source
The ADR5040/ADR5041/ADR5043/ADR5044/ADR5045,
combined with a precision low input bias op amp such as the
AD8610, can be used to output a precise adjustable voltage.
Figure 22 illustrates the implementation of this application
using the ADR5040/ADR5041/ADR5043/ADR5044/ADR5045.
The output of the op amp, VOUT, is determined by the gain of the
circuit, which is completely dependent on the resistors, R1 and R2.
By using just a few ultrasmall and inexpensive parts, it is possible
to build a programmable current source, as shown in Figure 23.
The constant voltage on the gate of the transistor sets the current
through the load. Varying the voltage on the gate changes the
current. The AD5247 is a digital potentiometer with I2C® digital
interface, and the AD8601 is a precision rail-to-rail input op
amp. Each incremental step of the digital potentiometer increases
or decreases the voltage at the noninverting input of the op amp.
Therefore, this voltage varies with respect to the reference
voltage.
V
OUT = (1 + R2/R1)VREF
An additional capacitor, C1, in parallel with R2, can be added to
filter out high frequency noise. The value of C1 is dependent on
the value of R2.
V
DD
R
R
SENSE
BIAS
V
CC
R
BIAS
V
REF
ADR5040/
ADR5041/
ADR5043/
ADR5044/
ADR5045
V
= V (1 + R2/R1)
REF
AD8610
R2
OUT
ADR5040/ADR5041/
ADR5043/ADR5044/
ADR5045
V+
AD8601
V–
AD5247
R1
I
LOAD
C1
(OPTIONAL)
GND
Figure 22. Adjustable Voltage Source
Figure 23. Programmable Current Source
Rev. B | Page 12 of 16
Data Sheet
ADR5040/ADR5041/ADR5043/ADR5044/ADR5045
OUTLINE DIMENSIONS
2.20
2.00
1.80
1.35
1.25
1.15
2.40
2.10
1.80
3
1
2
0.65 BSC
0.40
0.10
1.00
0.80
1.10
0.80
0.30
0.20
0.10
0.26
0.10
0.40
0.25
SEATING
PLANE
0.10 MAX
COPLANARITY
0.10
ALL DIMENSIONS COMPLIANT WITH EIAJ SC70
Figure 24. 3-Lead Thin Shrink Small Outline Transistor Package [SC70]
(KS-3)
Dimensions shown in millimeters
3.04
2.90
2.80
1.40
1.30
1.20
3
2.64
2.10
1
2
0.60
0.45
1.03
0.89
2.05
1.78
1.02
0.54
REF
0.95
0.88
GAUGE
PLANE
1.12
0.89
0.100
0.013
0.180
0.085
0.51
0.37
SEATING
PLANE
0.25
0.60 MAX
0.30 MIN
COMPLIANT TO JEDEC STANDARDS TO-236-AB
Figure 25. 3-Lead Small Outline Transistor Package [SOT-23-3]
(RT-3)
Dimensions shown in millimeters
Rev. B | Page 13 of 16
ADR5040/ADR5041/ADR5043/ADR5044/ADR5045
Data Sheet
ORDERING GUIDE
Initial
Tempco
Output
Voltage (V) (mV)
Accuracy
Industrial
(ppm/°C)
Temperature
Range
Package
Description
Package Ordering
Model1, 2
Option
KS-3
KS-3
KS-3
RT-3
RT-3
RT-3
KS-3
KS-3
RT-3
RT-3
KS-3
KS-3
KS-3
RT-3
RT-3
RT-3
KS-3
KS-3
RT-3
RT-3
RT-3
RT-3
KS-3
KS-3
KS-3
RT-3
RT-3
RT-3
KS-3
KS-3
RT-3
RT-3
KS-3
KS-3
KS-3
RT-3
RT-3
RT-3
KS-3
KS-3
RT-3
RT-3
RT-3
RT-3
Quantity
Branding
R2J
R2J
R2J
R2J
R2J
R2J
R2L
R2L
ADR5040AKSZ-R2
ADR5040AKSZ-REEL
ADR5040AKSZ-REEL7
ADR5040ARTZ-R2
ADR5040ARTZ-REEL
ADR5040ARTZ-REEL7
ADR5040BKSZ-R2
ADR5040BKSZ-REEL7
ADR5040BRTZ-R2
ADR5040BRTZ-REEL7
ADR5041AKSZ-R2
ADR5041AKSZ-REEL
ADR5041AKSZ-REEL7
ADR5041ARTZ-R2
ADR5041ARTZ-REEL
ADR5041ARTZ-REEL7
ADR5041BKSZ-R2
ADR5041BKSZ-REEL7
ADR5041BRTZ-R2
ADR5041BRTZ-REEL7
ADR5041WARTZ-R7
ADR5041WBRTZ-R7
ADR5043AKSZ-R2
ADR5043AKSZ-REEL
ADR5043AKSZ-REEL7
ADR5043ARTZ-R2
ADR5043ARTZ-REEL
ADR5043ARTZ-REEL7
ADR5043BKSZ-R2
ADR5043BKSZ-REEL7
ADR5043BRTZ-R2
ADR5043BRTZ-REEL7
ADR5044AKSZ-R2
ADR5044AKSZ-REEL
ADR5044AKSZ-REEL7
ADR5044ARTZ-R2
ADR5044ARTZ-REEL
ADR5044ARTZ-REEL7
ADR5044BKSZ-R2
ADR5044BKSZ-REEL7
ADR5044BRTZ-R2
ADR5044BRTZ-REEL7
ADR5044WARTZ-R7
ADR5044WBRTZ-R7
2.048
2.048
2.048
2.048
2.048
2.048
2.048
2.048
2.048
2.048
2.500
2.500
2.500
2.500
2.500
2.500
2.500
2.500
2.500
2.500
2500
2.500
3.0
4.096
4.096
4.096
4.096
4.096
4.096
2.048
2.048
2.048
2.048
5
5
5
5
5
5
2.5
2.5
2.5
100
100
100
100
100
100
75
75
75
75
–40°C to +125°C 3-Lead SC70
–40°C to +125°C 3-Lead SC70
–40°C to +125°C 3-Lead SC70
–40°C to +125°C 3-Lead SOT-23-3
–40°C to +125°C 3-Lead SOT-23-3
–40°C to +125°C 3-Lead SOT-23-3
–40°C to +125°C 3-Lead SC70
–40°C to +125°C 3-Lead SC70
–40°C to +125°C 3-Lead SOT-23-3
–40°C to +125°C 3-Lead SOT-23-3
–40°C to +125°C 3-Lead SC70
–40°C to +125°C 3-Lead SC70
–40°C to +125°C 3-Lead SC70
–40°C to +125°C 3-Lead SOT-23-3
–40°C to +125°C 3-Lead SOT-23-3
–40°C to +125°C 3-Lead SOT-23-3
–40°C to +125°C 3-Lead SC70
–40°C to +125°C 3-Lead SC70
–40°C to +125°C 3-Lead SOT-23-3
–40°C to +125°C 3-Lead SOT-23-3
–40°C to +125°C 3-Lead SOT-23-3
–40°C to +125°C 3-Lead SOT-23-3
–40°C to +125°C 3-Lead SC70
–40°C to +125°C 3-Lead SC70
–40°C to +125°C 3-Lead SC70
–40°C to +125°C 3-Lead SOT-23-3
–40°C to +125°C 3-Lead SOT-23-3
–40°C to +125°C 3-Lead SOT-23-3
–40°C to +125°C 3-Lead SC70
–40°C to +125°C 3-Lead SC70
–40°C to +125°C 3-Lead SOT-23-3
–40°C to +125°C 3-Lead SOT-23-3
–40°C to +125°C 3-Lead SC70
–40°C to +125°C 3-Lead SC70
–40°C to +125°C 3-Lead SC70
–40°C to +125°C 3-Lead SOT-23-3
–40°C to +125°C 3-Lead SOT-23-3
–40°C to +125°C 3-Lead SOT-23-3
–40°C to +125°C 3-Lead SC70
–40°C to +125°C 3-Lead SC70
–40°C to +125°C 3-Lead SOT-23-3
–40°C to +125°C 3-Lead SOT-23-3
–40°C to +125°C 3-Lead SOT-23-3
–40°C to +125°C 3-Lead SOT-23-3
250
10,000
3,000
250
10,000
3,000
250
3,000
250
3,000
250
10,000
3,000
250
10,000
3,000
250
3,000
250
3,000
3,000
3,000
250
10,000
3,000
250
10,000
3,000
250
3,000
250
3,000
250
10,000
3,000
250
10,000
3,000
250
3,000
250
3,000
3,000
3,000
R2L
R2L
100
100
100
100
100
100
75
75
75
75
100
75
R2N
R2N
R2N
R2N
R2N
R2N
R2Q
R2Q
R2Q
R2Q
R2N
R2Q
R2S
2.5
5
2.5
6
6
6
6
6
6
3
3
100
100
100
100
100
100
75
75
75
75
3.0
3.0
3.0
3.0
3.0
3.0
3.0
3.0
R2S
R2S
R2S
R2S
R2S
R2U
R2U
R2U
R2U
R2W
R2W
R2W
R2W
R2W
R2W
R2Y
R2Y
R2Y
R2Y
R2W
R2Y
3
3
3.0
4.096
4.096
4.096
4.096
4.096
4.096
4.096
4.096
4.096
4.096
4.096
4.096
8.192
8.192
8.192
8.192
8.192
8.192
4.096
4.096
4.096
4.096
8.192
4.096
100
100
100
100
100
100
75
75
75
75
100
75
Rev. B | Page 14 of 16
Data Sheet
ADR5040/ADR5041/ADR5043/ADR5044/ADR5045
Initial
Accuracy
Voltage (V) (mV)
Tempco
Industrial
(ppm/°C)
Output
Temperature
Range
Package
Description
Package Ordering
Model1, 2
Option
KS-3
KS-3
KS-3
RT-3
RT-3
RT-3
KS-3
KS-3
RT-3
RT-3
Quantity
Branding
R30
R30
R30
R30
R30
R30
R32
R32
ADR5045AKSZ-R2
ADR5045AKSZ-REEL
ADR5045AKSZ-REEL7
ADR5045ARTZ-R2
ADR5045ARTZ-REEL
ADR5045ARTZ-REEL7
ADR5045BKSZ-R2
ADR5045BKSZ-REEL7
ADR5045BRTZ-R2
ADR5045BRTZ-REEL7
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
10
10
10
10
10
10
5
5
5
5
100
100
100
100
100
100
75
75
75
75
–40°C to +125°C 3-Lead SC70
–40°C to +125°C 3-Lead SC70
–40°C to +125°C 3-Lead SC70
–40°C to +125°C 3-Lead SOT-23-3
–40°C to +125°C 3-Lead SOT-23-3
–40°C to +125°C 3-Lead SOT-23-3
–40°C to +125°C 3-Lead SC70
–40°C to +125°C 3-Lead SC70
–40°C to +125°C 3-Lead SOT-23-3
–40°C to +125°C 3-Lead SOT-23-3
250
10,000
3,000
250
10,000
3,000
250
3,000
250
3,000
R32
R32
1 Z = RoHS Compliant Part.
2 W = Qualified for Automotive Applications.
AUTOMOTIVE PRODUCTS
The ADR5041W and ADR5044W models are available with controlled manufacturing to support the quality and reliability requirements
of automotive applications. Note that these automotive models may have specifications that differ from the commercial models; therefore,
designers should review the Specifications section of this data sheet carefully. Only the automotive grade products shown are available for
use in automotive applications. Contact your local Analog Devices account representative for specific product ordering information and
to obtain the specific Automotive Reliability reports for these models.
Rev. B | Page 15 of 16
ADR5040/ADR5041/ADR5043/ADR5044/ADR5045
NOTES
Data Sheet
Purchase of licensed I2C components of Analog Devices or one of its sublicensed Associated Companies conveys a license for the purchaser under the Philips I2C Patent
Rights to use these components in an I2C system, provided that the system conforms to the I2C Standard Specification as defined by Philips.
©2007–2012 Analog Devices, Inc. All rights reserved. Trademarks and
registered trademarks are the property of their respective owners.
D06526-0-8/12(B)
Rev. B | Page 16 of 16
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