ANALOG DEVICES ADR430, ADR431, ADR433, ADR434, ADR435 Service Manual
...
Ultralow Noise XFET Voltage References
T
2
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ADR430/ADR431/ADR433/ADR434/ADR435/ADR439
with Current Sink and Source Capability
FEATURES
Low noise (0.1 Hz to 10.0 Hz): 3.5 μV p-p @ 2.5 V output
No external capacitor required
Low temperature coefficient
A Grade: 10 ppm/°C maximum
B Grade: 3 ppm/°C maximum
Load regulation: 15 ppm/mA
Line regulation: 20 ppm/V
Wide operating range
ADR430: 4.1 V to 18 V
ADR431: 4.5 V to 18 V
ADR433: 5.0 V to 18 V
ADR434: 6.1 V to 18 V
ADR435: 7.0 V to 18 V
ADR439: 6.5 V to 18 V
High output source and sink current: +30 mA and −20 mA
Wide temperature range: −40°C to +125°C
APPLICATIONS
Precision data acquisition systems
High resolution data converters
Medical instruments
Industrial process control systems
Optical control circuits
Precision instruments
PIN CONFIGURATIONS
1
TP
ADR43x
V
2
IN
TOP VIEW
NC
3
(Not to Scale)
GND
4
NOTES
1. NC = NO CONNECT
2. TP = TEST PIN (DO NOT CONNECT )
Figure 1. 8-Lead MSOP (RM-8)
1
TP
ADR43x
V
2
IN
TOP VIEW
NC
3
(Not to Scale)
GND
4
NOTES
1. NC = NO CONNEC
. TP = TEST PIN (DO NOT CONNECT)
Figure 2. 8-Lead SOIC_N (R-8)
8
TP
NC
7
6
V
OUT
5
TRIM
04500-001
TP
8
7
NC
6
V
OUT
TRIM
5
04500-041
GENERAL DESCRIPTION
The ADR43x series is a family of XFET® voltage references
featuring low 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 ADR43x is minimized.
The XFET references operate at lower current (800 µA) and
l
ower supply voltage headroom (2 V) than buried Zener
references. Buried Zener references require more than 5 V
headroom for operation. The ADR43x XFET references are
the only low noise solutions for 5 V systems.
The ADR43x family has the capability to source up to 30 mA of
utput current and sink up to 20 mA. It also comes with a trim
o
terminal to adjust the output voltage over a 0.5% range without
compromising performance.
The ADR43x is available in 8-lead MSOP and 8-lead narrow
SO
IC packages. All versions are specified over the extended
industrial temperature range of −40°C to +125°C.
Rev. D
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Anal og Devices for its use, nor for any infringements of patents or ot her
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.
Table 1. Selection Guide
Temperature
Model
Output
V
oltage (V)
Accuracy, ±
(mV)
C
oefficient
(ppm/°C)
ADR430A 2.048 3 10
ADR430B 2.048 1 3
ADR431A 2.500 3 10
ADR431B 2.500 1 3
ADR433A 3.000 4 10
ADR433B 3.000 1.5 3
ADR434A 4.096 5 10
ADR434B 4.096 1.5 3
ADR435A 5.000 6 10
ADR435B 5.000 2 3
ADR439A 4.500 5.5 10
ADR439B 4.500 2 3
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 ©2006–2007 Analog Devices, Inc. All rights reserved.
ADR430/ADR431/ADR433/ADR434/ADR435/ADR439
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TABLE OF CONTENTS
Features.............................................................................................. 1
Applications....................................................................................... 1
Pin Configurations ........................................................................... 1
General Description ......................................................................... 1
Revision History ............................................................................... 2
Specifications..................................................................................... 3
ADR430 Electrical Characteristics............................................. 3
ADR431 Electrical Characteristics............................................. 4
ADR433 Electrical Characteristics............................................. 5
ADR434 Electrical Characteristics............................................. 6
ADR435 Electrical Characteristics............................................. 7
ADR439 Electrical Characteristics............................................. 8
Absolute Maximum Ratings............................................................ 9
Thermal Resistance ...................................................................... 9
ESD Caution.................................................................................. 9
Typical Performance Characteristics ........................................... 10
Theory of Operation ...................................................................... 15
Basic Voltage Reference Connections...................................... 15
Noise Performance..................................................................... 15
Turn-On Time ............................................................................ 15
Applications..................................................................................... 16
Output Adjustment.................................................................... 16
Reference for Converters in Optical Network Control
Circuits......................................................................................... 16
Negative Precision Reference Without Precision Resistors.. 16
High Voltage Floating Current Source.................................... 17
Kelvin Connection ..................................................................... 17
Dual-Polarity References........................................................... 17
Programmable Current Source ................................................ 18
Programmable DAC Reference Voltage .................................. 18
Precision Voltage Reference for Data Converters.................. 19
Precision Boosted Output Regulator....................................... 19
Outline Dimensions....................................................................... 20
Ordering Guide .......................................................................... 21
REVISION HISTORY
12/07—Rev. C to Rev. D
Changes to Initial Accuracy and Ripple Rejection Ratio
arameters in Table 2 through Table 7 .......................................... 3
P
Changes to Table 9............................................................................ 9
Changes to Theory of Operation Section.................................... 15
Updated Outline Dimensions....................................................... 20
8/06—Rev. B to Rev. C
Updated Format..................................................................Universal
Changes to Table 1............................................................................ 1
Changes to Table 3............................................................................ 4
Changes to Table 4............................................................................ 5
Changes to Table 7............................................................................ 8
Changes to Figure 26...................................................................... 14
Changes to Figure 31...................................................................... 16
Updated Outline Dimensions....................................................... 20
Changes to Ordering Guide.......................................................... 21
9/04—Rev. A to Rev. B
Added New Grade..............................................................Universal
Changes to Specifications.................................................................3
Replaced Figure 3, Figure 4, Figure 5........................................... 10
Updated Ordering Guide .............................................................. 21
6/04—Rev. 0 to Rev. A
Changes to Format............................................................. Universal
Changes to the Ordering Guide ................................................... 20
12/03—Revision 0: Initial Version
Rev. D | Page 2 of 24
ADR430/ADR431/ADR433/ADR434/ADR435/ADR439
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SPECIFICATIONS
ADR430 ELECTRICAL CHARACTERISTICS
VIN = 4.1 V to 18 V, IL = 0 mA, TA = 25°C, unless otherwise noted.
Table 2.
Parameter Symbol Conditions Min Typ Max Unit
OUTPUT VOLTAGE VO
A Grade 2.045 2.048 2.051 V
B Grade 2.047 2.048 2.049 V
INITIAL ACCURACY V
A Grade ±3 mV
±0.15 %
B Grade ±1 mV
±0.05 %
TEMPERATURE COEFFICIENT TCVO
A Grade −40°C < TA < +125°C 2 10 ppm/°C
B Grade −40°C < TA < +125°C 1 3 ppm/°C
LINE REGULATION ∆VO/∆VIN VIN = 4.1 V to 18 V, −40°C < TA < +125°C 5 20 ppm/V
LOAD REGULATION ∆VO/∆IL IL = 0 mA to 10 mA, VIN = 5.0 V, −40°C < TA < +125°C 15 ppm/mA
∆VO/∆IL IL = −10 mA to 0 mA, VIN = 5.0 V, −40°C < TA < +125°C 15 ppm/mA
QUIESCENT CURRENT IIN No load, −40°C < TA < +125°C 560 800 μA
VOLTAGE NOISE eN p-p 0.1 Hz to 10.0 Hz 3.5 μV p-p
VOLTAGE NOISE DENSITY eN 1 kHz 60 nV/√Hz
TURN-ON SETTLING TIME tR C
LONG-TERM STABILITY
OUTPUT VOLTAGE HYSTERESIS V
RIPPLE REJECTION RATIO RRR fIN = 1 kHz –70 dB
SHORT CIRCUIT TO GND ISC 40 mA
SUPPLY VOLTAGE
OPERATING RANGE
SUPPLY VOLTAGE HEADROOM VIN − VO 2 V
1
The long-term stability specification is noncumulative. The drift in subsequent 1000-hour periods is significantly lower than in the first 1000-hour period.
1
OERR
= 0 μF 10 μs
L
∆VO 1000 hours 40 ppm
20 ppm
O_HYS
4.1 18 V
V
IN
Rev. D | Page 3 of 24
ADR430/ADR431/ADR433/ADR434/ADR435/ADR439
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ADR431 ELECTRICAL CHARACTERISTICS
VIN = 4.5 V to 18 V, IL = 0 mA, TA = 25°C, unless otherwise noted.
Table 3.
Parameter Symbol Conditions Min Typ Max Unit
OUTPUT VOLTAGE VO
A Grade 2.497 2.500 2.503 V
B Grade 2.499 2.500 2.501 V
INITIAL ACCURACY V
A Grade ±3 mV
±0.12 %
B Grade ±1 mV
±0.04 %
TEMPERATURE COEFFICIENT TCVO
A Grade −40°C < TA < +125°C 2 10 ppm/°C
B Grade −40°C < TA < +125°C 1 3 ppm/°C
LINE REGULATION ∆VO/∆VIN VIN = 4.5 V to 18 V, −40°C < TA < +125°C 5 20 ppm/V
LOAD REGULATION ∆VO/∆IL IL = 0 mA to 10 mA, VIN = 5.0 V, −40°C < TA < +125°C 15 ppm/mA
∆VO/∆IL IL = −10 mA to 0 mA, VIN = 5.0 V, −40°C < TA < +125°C 15 ppm/mA
QUIESCENT CURRENT IIN No load, −40°C < TA < +125°C 580 800 μA
VOLTAGE NOISE eN p-p 0.1 Hz to 10.0 Hz 3.5 μV p-p
VOLTAGE NOISE DENSITY eN 1 kHz 80 nV/√Hz
TURN-ON SETTLING TIME tR C
LONG-TERM STABILITY
OUTPUT VOLTAGE HYSTERESIS V
RIPPLE REJECTION RATIO RRR fIN = 1 kHz −70 dB
SHORT CIRCUIT TO GND ISC 40 mA
SUPPLY VOLTAGE
OPERATING RANGE V
SUPPLY VOLTAGE HEADROOM VIN − VO 2 V
1
The long-term stability specification is noncumulative. The drift in subsequent 1000-hour periods is significantly lower than in the first 1000-hour period.
1
OERR
= 0 μF 10 μs
L
∆VO 1000 hours 40 ppm
20 ppm
O_HYS
4.5 18 V
IN
Rev. D | Page 4 of 24
ADR430/ADR431/ADR433/ADR434/ADR435/ADR439
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ADR433 ELECTRICAL CHARACTERISTICS
VIN = 5.0 V to 18 V, IL = 0 mA, TA = 25°C, unless otherwise noted.
Table 4.
Parameter Symbol Conditions Min Typ Max Unit
OUTPUT VOLTAGE VO
A Grade 2.996 3.000 3.004 V
B Grade 2.9985 3.000 3.0015 V
INITIAL ACCURACY V
A Grade ±4 mV
±0.13 %
B Grade ±1.5 mV
±0.05 %
TEMPERATURE COEFFICIENT TCVO
A Grade −40°C < TA < +125°C 2 10 ppm/°C
B Grade −40°C < TA < +125°C 1 3 ppm/°C
LINE REGULATION ∆VO/∆VIN
LOAD REGULATION ∆VO/∆IL
∆VO/∆IL
QUIESCENT CURRENT IIN No load, −40°C < TA < +125°C 590 800 μA
VOLTAGE NOISE eN p-p 0.1 Hz to 10.0 Hz 3.75 μV p-p
VOLTAGE NOISE DENSITY eN 1 kHz 90 nV/√Hz
TURN-ON SETTLING TIME tR C
LONG-TERM STABILITY
1
OUTPUT VOLTAGE
HYSTERESIS
RIPPLE REJECTION RATIO RRR fIN = 1 kHz −70 dB
SHORT CIRCUIT TO GND ISC 40 mA
SUPPLY VOLTAGE
OPERATING RANGE V
SUPPLY VOLTAGE
HEADROOM
1
The long-term stability specification is noncumulative. The drift in subsequent 1000-hour periods is significantly lower than in the first 1000-hour period.
OERR
= 5 V to 18 V, −40°C < TA <
V
IN
5 20 ppm/V
+125°C
= 0 mA to 10 mA, VIN = 6 V,
I
L
−40°C < T
= −10 mA to 0 mA, VIN = 6 V,
I
L
−40°C < T
= 0 μF 10 μs
L
< +125°C
A
< +125°C
A
15 ppm/mA
15 ppm/mA
∆VO 1000 hours 40 ppm
V
20 ppm
O_HYS
5.0 18 V
IN
V
− VO 2 V
IN
Rev. D | Page 5 of 24
ADR430/ADR431/ADR433/ADR434/ADR435/ADR439
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ADR434 ELECTRICAL CHARACTERISTICS
VIN = 6.1 V to 18 V, IL = 0 mA, TA = 25°C, unless otherwise noted.
Table 5.
Parameter Symbol Conditions Min Typ Max Unit
OUTPUT VOLTAGE VO
A Grade 4.091 4.096 4.101 V
B Grade 4.0945 4.096 4.0975 V
INITIAL ACCURACY V
A Grade ±5 mV
±0.12 %
B Grade ±1.5 mV
±0.04 %
TEMPERATURE COEFFICIENT TCVO
A Grade −40°C < TA < +125°C 2 10 ppm/°C
B Grade −40°C < TA < +125°C 1 3 ppm/°C
LINE REGULATION ∆VO/∆VIN VIN = 6.1 V to 18 V, −40°C < TA < +125°C 5 20 ppm/V
LOAD REGULATION ∆VO/∆IL IL = 0 mA to 10 mA, VIN = 7 V, −40°C < TA < +125°C 15 ppm/mA
∆VO/∆IL IL = −10 mA to 0 mA, VIN = 7 V, −40°C < TA < +125°C 15 ppm/mA
QUIESCENT CURRENT IIN No load, −40°C < TA < +125°C 595 800 μA
VOLTAGE NOISE eN p-p 0.1 Hz to 10.0 Hz 6.25 μV p-p
VOLTAGE NOISE DENSITY eN 1 kHz 100 nV/√Hz
TURN-ON SETTLING TIME tR C
LONG-TERM STABILITY
OUTPUT VOLTAGE HYSTERESIS V
RIPPLE REJECTION RATIO RRR fIN = 1 kHz −70 dB
SHORT CIRCUIT TO GND ISC 40 mA
SUPPLY VOLTAGE
OPERATING RANGE V
SUPPLY VOLTAGE HEADROOM VIN − VO 2 V
1
The long-term stability specification is noncumulative. The drift in subsequent 1000-hour periods is significantly lower than in the first 1000-hour period.
1
OERR
= 0 μF 10 μs
L
∆VO 1000 hours 40 ppm
20 ppm
O_HYS
6.1 18 V
IN
Rev. D | Page 6 of 24
ADR430/ADR431/ADR433/ADR434/ADR435/ADR439
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ADR435 ELECTRICAL CHARACTERISTICS
VIN = 7.0 V to 18 V, IL = 0 mA, TA = 25°C, unless otherwise noted.
Table 6.
Parameter Symbol Conditions Min Typ Max Unit
OUTPUT VOLTAGE VO
A Grade 4.994 5.000 5.006 V
B Grade 4.998 5.000 5.002 V
INITIAL ACCURACY V
A Grade ±6 mV
±0.12 %
B Grade ±2 mV
±0.04 %
TEMPERATURE COEFFICIENT TCVO
A Grade −40°C < TA < +125°C 2 10 ppm/°C
B Grade −40°C < TA < +125°C 1 3 ppm/°C
LINE REGULATION ∆VO/∆VIN VIN = 7 V to 18 V, −40°C < TA < +125°C 5 20 ppm/V
LOAD REGULATION ∆VO/∆IL IL = 0 mA to 10 mA, VIN = 8 V, −40°C < TA < +125°C 15 ppm/mA
∆VO/∆IL IL = −10 mA to 0 mA, VIN = 8 V, −40°C < TA < +125°C 15 ppm/mA
QUIESCENT CURRENT IIN No load, −40°C < TA < +125°C 620 800 μA
VOLTAGE NOISE eN p-p 0.1 Hz to 10 Hz 8 μV p-p
VOLTAGE NOISE DENSITY eN 1 kHz 115 nV/√Hz
TURN-ON SETTLING TIME tR C
LONG-TERM STABILITY
OUTPUT VOLTAGE HYSTERESIS V
RIPPLE REJECTION RATIO RRR fIN = 1 kHz −70 dB
SHORT CIRCUIT TO GND ISC 40 mA
SUPPLY VOLTAGE OPERATING RANGE VIN 7.0 18 V
SUPPLY VOLTAGE HEADROOM VIN − VO 2 V
1
The long-term stability specification is noncumulative. The drift in subsequent 1000-hour periods is significantly lower than in the first 1000-hour period.
1
OERR
= 0 μF 10 μs
L
∆VO 1000 hours 40 ppm
20 ppm
O_HYS
Rev. D | Page 7 of 24
ADR430/ADR431/ADR433/ADR434/ADR435/ADR439
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ADR439 ELECTRICAL CHARACTERISTICS
VIN = 6.5 V to 18 V, IL = 0 mV, TA = 25°C, unless otherwise noted.
Table 7.
Parameter Symbol Conditions Min Typ Max Unit
OUTPUT VOLTAGE VO
A Grade 4.4946 4.500 4.5054 V
B Grade 4.498 4.500 4.502 V
INITIAL ACCURACY V
A Grade ±5.5 mV
±0.12 %
B Grade ±2 mV
±0.04 %
TEMPERATURE COEFFICIENT TCVO
A Grade −40°C < TA < +125°C 2 10 ppm/°C
B Grade −40°C < TA < +125°C 1 3 ppm/°C
LINE REGULATION ∆VO/∆VIN VIN = 6.5 V to 18 V, −40°C < TA < +125°C 5 20 ppm/V
LOAD REGULATION ∆VO/∆IL IL = 0 mA to 10 mA, VIN = 6.5 V, −40°C < TA < +125°C 15 ppm/mA
∆VO/∆IL IL = −10 mA to 0 mA, VIN = 6.5 V, −40°C < TA < +125°C 15 ppm/mA
QUIESCENT CURRENT IIN No load, −40°C < TA < +125°C 600 800 μA
VOLTAGE NOISE eN p-p 0.1 Hz to 10.0 Hz 7.5 μV p-p
VOLTAGE NOISE DENSITY eN 1 kHz 110 nV/√Hz
TURN-ON SETTLING TIME tR C
LONG-TERM STABILITY
OUTPUT VOLTAGE HYSTERESIS V
RIPPLE REJECTION RATIO RRR fIN = 1 kHz −70 dB
SHORT CIRCUIT TO GND ISC 40 mA
SUPPLY VOLTAGE OPERATING RANGE VIN 6.5 18 V
SUPPLY VOLTAGE HEADROOM VIN − VO 2 V
1
The long-term stability specification is noncumulative. The drift in subsequent 1000-hour periods is significantly lower than in the first 1000-hour period.
1
OERR
= 0 μF 10 μs
L
∆VO 1000 hours 40 ppm
20 ppm
O_HYS
Rev. D | Page 8 of 24
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