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ADR445ARMZ-REEL7

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18
Ultralow Noise, LDO XFET Voltage
References with Current Sink and Source
Data Sheet
ADR440/ADR441/ADR443/ADR444/ADR445
Rev. F Document Feedback
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.
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One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700 ©2005–2016 Analog Devices, Inc. All rights reserved.
Technical Support www.analog.com
FEATURES
Ultralow noise (0.1 Hz to 10 Hz)
ADR440: 1 µV p-p
ADR441: 1.2 µV p-p
ADR443: 1.4 µV p-p
ADR444: 1.8 µV p-p
ADR445: 2.25 µV p-p
Superb temperature coefficient
A grade: 10 ppm/°C
B grade: 3 ppm/°C
Low dropout operation: 500 mV
Input range: (V
OUT
+ 500 mV) to 18 V
High output source and sink current
+10 mA and −5 mA, respectively
Wide temperature range: −40°C to +125°C
APPLICATIONS
Precision data acquisition systems
High resolution data converters
Battery-powered instrumentation
Portable medical instruments
Industrial process control systems
Precision instruments
Optical control circuits
PIN CONFIGURATIONS
NOTES
1. NC = NO CONNECT
2. TP = TEST PIN (DO NOT CONNECT)
TP
1
V
IN
2
NC
3
GND
4
TP
8
NC
7
V
OUT
6
TRIM
5
ADR440/
ADR441/
ADR443/
ADR444/
ADR445
TOP VIEW
(Not to Scale)
05428-001
Figure 1. 8-Lead SOIC_N (R-Suffix)
05428-002
TP
1
V
IN
2
NC
3
GND
4
TP
8
NC
7
V
OUT
6
TRIM
5
ADR440/
ADR441/
ADR443/
ADR444/
ADR445
TOP VIEW
(Not to Scale)
NOTES
1. NC = NO CONNECT
2. TP = TEST PIN (DO NOT CONNECT)
Figure 2. 8-Lead MSOP (RM-Suffix)
GENERAL DESCRIPTION
The ADR44x series is a family of XFET® voltage references
featuring ultralow noise, high accuracy, and low temperature
drift performance. Using Analog Devices, Inc., patented
temperature drift curvature correction and XFET (eXtra
implanted junction FET) technology, voltage change vs.
temperature nonlinearity in the ADR44x is greatly minimized.
The XFET references offer better noise performance than
buried Zener references, and XFET references operate off
low supply voltage headroom (0.5 V). This combination of
features makes the ADR44x family ideally suited for precision
signal conversion applications in high-end data acquisition
systems, optical networks, and medical applications.
The ADR44x family has the capability to source up to 10 mA of
output current and sink up to −5 mA. It also comes with a trim
terminal to adjust the output voltage over a 0.5% range without
compromising performance.
Offered in two electrical grades, the ADR44x family is avail-
able in 8-lead MSOP and narrow SOIC packages. All versions
are specified over the extended industrial temperature range of
−40°C to +125°C.
Table 1. Selection Guide
Model
Output
Voltage
(V)
Initial
Accuracy
(mV)
Temperature
Coefficient
(ppm/°C)
ADR440A
2.048
10
ADR440B 2.048 ±1 3
ADR441A 2.500 ±3 10
ADR441B 2.500 ±1 3
ADR443A 3.000 ±4 10
ADR443B 3.000 ±1.2 3
ADR444A 4.096 ±5 10
ADR444B 4.096 ±1.6 3
ADR445A 5.000 ±6 10
ADR445B 5.000 ±2 3
ADR440/ADR441/ADR443/ADR444/ADR445 Data Sheet
Rev. F | Page 2 of 18
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications ....................................................................................... 1
Pin Configurations ........................................................................... 1
General Description ......................................................................... 1
Revision History ............................................................................... 2
Specifications ..................................................................................... 3
ADR440 Electrical Characteristics ............................................. 3
ADR441 Electrical Characteristics ............................................. 4
ADR443 Electrical Characteristics ............................................. 5
ADR444 Electrical Characteristics ............................................. 6
ADR445 Electrical Characteristics ............................................. 7
Absolute Maximum Ratings ............................................................ 8
Thermal Resistance ...................................................................... 8
ESD Caution .................................................................................. 8
Typical Performance Characteristics ............................................. 9
Theory of Operation ...................................................................... 14
Power Dissipation Considerations ........................................... 14
Basic Voltage Reference Connections ..................................... 14
Noise Performance ..................................................................... 14
Turn-On Time ............................................................................ 14
Applications Information .............................................................. 15
Output Adjustment .................................................................... 15
Bipolar Outputs .......................................................................... 15
Programmable Voltage Source ................................................. 15
Programmable Current Source ................................................ 16
High Voltage Floating Current Source .................................... 16
Precision Output Regulator (Boosted Reference) ................. 16
Outline Dimensions ....................................................................... 17
Ordering Guide .......................................................................... 18
REVISION HISTORY
9/2016—Rev. E to Rev. F
Changes to Figure 38 ...................................................................... 16
11/2010—Rev. D to Rev. E
Deleted Negative Reference Section ............................................. 15
Deleted Figure 37; Renumbered Sequentially ............................ 15
3/2010—Rev. C to Rev. D
Changes to Figure 37 ...................................................................... 15
Updated Outline Dimensions ....................................................... 18
3/2008—Rev. B to Rev. C
Changes to Table 8 ............................................................................ 8
Change to Figure 11 ....................................................................... 10
Changes to Figure 36 ...................................................................... 15
Changes to Figure 39 ...................................................................... 16
Changes to Figure 41 ...................................................................... 17
Updated Outline Dimensions ....................................................... 18
8/2007—Rev. A to Rev. B
Change to Table 2, Ripple Rejection Ratio Specification ............ 3
Change to Table 3, Ripple Rejection Ratio Specification ............ 4
Change to Table 4, Ripple Rejection Ratio Specification ............ 5
Change to Table 5, Ripple Rejection Ratio Specification ............ 6
Change to Table 6, Ripple Rejection Ratio Specification ............ 7
9/2006—Rev. 0 to Rev. A
Updated Format .................................................................. Universal
Changes to Features .......................................................................... 1
Changes to Pin Configurations ....................................................... 1
Changes to Specifications Section ................................................... 3
Changes to Figure 4 and Figure 5 .................................................... 9
Inserted Figure 6 and Figure 7 ......................................................... 9
Changes to Figure 15 ...................................................................... 11
Changes to Power Dissipation Considerations Section ............ 14
Changes to Figure 35 and Figure 36............................................. 15
Changes to Figure 38 and Table 9................................................. 16
Updated Outline Dimensions ....................................................... 18
Changes to Ordering Guide .......................................................... 19
10/2005—Revision 0: Initial Version
Data Sheet ADR440/ADR441/ADR443/ADR444/ADR445
Rev. F | Page 3 of 18
SPECIFICATIONS
ADR440 ELECTRICAL CHARACTERISTICS
V
IN
= 3 V to 18 V, T
A
= 25°C, C
IN
= C
OUT
= 0.1 µF, unless otherwise noted.
Table 2.
Parameter Symbol Conditions Min Typ Max Unit
OUTPUT VOLTAGE V
O
A Grade
2.045 2.048 2.051 V
B Grade
2.047 2.048 2.049 V
INITIAL ACCURACY V
OERR
A Grade
3 mV
0.15 %
B Grade 1 mV
0.05 %
TEMPERATURE DRIFT TCV
O
A Grade −40°C < T
A
< +125°C 2 10 ppm/°C
B Grade −40°C < T
A
< +125°C 1 3 ppm/°C
LINE REGULATION ΔV
O
/ΔV
IN
−40°C < T
A
< +125°C −20 +10 +20 ppm/V
LOAD REGULATION ΔV
O
/ΔI
LOAD
I
LOAD
= 0 mA to 10 mA, V
IN
= 3.5 V,
−40°C < T
A
< +125°C
−50 +50 ppm/mA
ΔV
O
/ΔI
LOAD
I
LOAD
= 0 mA to −5 mA, V
IN
= 3.5 V,
−40°C < T
A
< +125°C
−50 +50 ppm/mA
QUIESCENT CURRENT I
IN
No load, −40°C < T
A
< +125°C 3 3.75 mA
VOLTAGE NOISE e
N
p-p 0.1 Hz to 10 Hz 1 μV p-p
VOLTAGE NOISE DENSITY e
N
1 kHz 45 nV/√Hz
TURN-ON SETTLING TIME t
R
10 μs
LONG-TERM STABILITY
1
V
O
1000 hours 50 ppm
OUTPUT VOLTAGE HYSTERESIS V
O_HYS
70 ppm
RIPPLE REJECTION RATIO RRR f
IN
= 1 kHz −80 dB
SHORT CIRCUIT TO GND I
SC
27 mA
SUPPLY VOLTAGE OPERATING RANGE V
IN
3 18 V
SUPPLY VOLTAGE HEADROOM V
IN
− V
O
500 mV
1
The long-term stability specification is noncumulative. The drift in the subsequent 1000-hour period is significantly lower than in the first 1000-hour period.
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18

ADR445ARMZ-REEL7

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Buy ADR445ARMZ-REEL7
Manufacturer:
Analog Devices Inc.
Description:
Voltage References LDO 5.0V w/ Crnt Sink & Srce
Lifecycle:
New from this manufacturer.
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