adr431-ep Analog Devices, Inc., adr431-ep Datasheet

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adr431-ep

Manufacturer Part Number
adr431-ep
Description
Low Noise Xfet Voltage References With Current Sink And Source Capability Adr431-ep/adr434-ep/adr435-ep
Manufacturer
Analog Devices, Inc.
Datasheet
FEATURES
Low noise (0.1 Hz to 10.0 Hz): 3.5 μV p-p @ 2.5 V
No external capacitor required
Low temperature coefficient
Load regulation: 15 ppm/mA
Line regulation: 20 ppm/V
Wide operating range: 4.5 V to 18 V (ADR431-EP)
High output source and sink current: +10 mA and −10 mA
ENHANCED PRODUCT FEATURES
Supports defense and aerospace applications (AQEC
Military temperature range (−55°C to +125°C)
Controlled manufacturing baseline
One assembly/test site
One fabrication site
Enhanced product change notification
Qualification data available on request
APPLICATIONS
Precision data acquisition systems
High resolution data converters
Optical control circuits
Precision instruments
GENERAL DESCRIPTION
The ADR431-EP/ADR434-EP/ADR435-EP are 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 ADR431-EP/ADR434-EP/ADR435-EP is minimized.
The XFET references operate at lower current (800 μA) and
lower supply voltage headroom (2 V) than buried Zener
references. Buried Zener references require more than 5 V
headroom for operation. The ADR431-EP/ADR434-EP/
ADR435-EP XFET references are optimal low noise solutions
for 5 V systems.
Rev. A
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.
T Grade: 3 ppm/°C maximum (ADR434-EP/ADR435-EP)
T Grade: 5 ppm/°C maximum (ADR431-EP)
standard)
OUT
(ADR431-EP)
Low Noise XFET Voltage References with
ADR431-EP/ADR434-EP/ADR435-EP
Current Sink and Source Capability
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.461.3113
The ADR431-EP/ADR434-EP/ADR435-EP have the capability
to source up to 10 mA of output current and sink up to −10 mA.
They also come with a trim terminal to adjust the output
voltage over a 0.5% range without compromising performance.
The ADR431-EP/ADR434-EP/ADR435-EP are available in an
8-lead narrow SOIC package and are specified over the military
temperature range of −55°C to +125°C.
Additional application and technical information can be found
in the
data sheet.
Table 1. Selection Guide
Model
ADR431T-EP
ADR434T-EP
ADR435T-EP
ADR430/ADR431/ADR433/ADR434/ADR435/ADR439
Output
Voltage (V)
2.500
4.096
5.000
GND
NOTES
1. NC = NO CONNECT.
2. TP = TEST PIN (DO NOT CONNECT).
V
NC
TP
PIN CONFIGURATION
IN 2
Figure 1. 8-Lead SOIC_N (R-8)
1
3
4
©2010 Analog Devices, Inc. All rights reserved.
ADR431-EP/
ADR434-EP/
ADR435-EP
(Not to Scale)
TOP VIEW
Accuracy
(mV)
±1.0
±1.5
±2.0
8
7
6
5
TP
COMP
V
TRIM
OUT
Temperature
Coefficient (ppm/°C)
5
3
3
www.analog.com

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adr431-ep Summary of contents

Page 1

... T Grade: 3 ppm/°C maximum (ADR434-EP/ADR435-EP) T Grade: 5 ppm/°C maximum (ADR431-EP) Load regulation: 15 ppm/mA Line regulation: 20 ppm/V Wide operating range: 4 (ADR431-EP) High output source and sink current: +10 mA and −10 mA ENHANCED PRODUCT FEATURES Supports defense and aerospace applications (AQEC standard) Military temperature range (− ...

Page 2

... ADR431-EP/ADR434-EP/ADR435-EP TABLE OF CONTENTS Features .............................................................................................. 1 Enhanced Product Features ............................................................ 1 Applications ....................................................................................... 1 Pin Configuration ............................................................................. 1 General Description ......................................................................... 1 Revision History ............................................................................... 2 Specifications ..................................................................................... 3 ADR431-EP Electrical Characteristics ...................................... 3 ADR434-EP Electrical Characteristics ...................................... 4 REVISION HISTORY 8/10—Rev Rev. A Added ADR431-EP ....................................................... Throughout Added ADR435-EP ....................................................... Throughout Changes to Ordering Guide ............................................................ 8 7/10—Revision 0: Initial Version ADR435-EP Electrical Characteristics .......................................5 Absolute Maximum Ratings ...

Page 3

... SPECIFICATIONS ADR431-EP ELECTRICAL CHARACTERISTICS 25°C, unless otherwise noted Table 2. Parameter OUTPUT VOLTAGE T Grade INITIAL ACCURACY T Grade TEMPERATURE COEFFICIENT T Grade LINE REGULATION LOAD REGULATION QUIESCENT CURRENT VOLTAGE NOISE VOLTAGE NOISE DENSITY TURN-ON SETTLING TIME LONG-TERM STABILITY ...

Page 4

... ADR431-EP/ADR434-EP/ADR435-EP ADR434-EP ELECTRICAL CHARACTERISTICS 25°C, unless otherwise noted Table 3. Parameter Symbol OUTPUT VOLTAGE V T Grade INITIAL ACCURACY V T Grade TEMPERATURE COEFFICIENT TCV T Grade LINE REGULATION ΔV LOAD REGULATION ΔV ΔV QUIESCENT CURRENT I VOLTAGE NOISE ...

Page 5

... μ ∆V 1000 hours O V O_HYS RRR kHz − Rev Page ADR431-EP/ADR434-EP/ADR435-EP Min Typ 4.998 5.000 1 < +125°C 5 < +125°C A < +125°C A 620 8 115 −70 40 7.0 2 Max Unit 5 ...

Page 6

... ADR431-EP/ADR434-EP/ADR435-EP ABSOLUTE MAXIMUM RATINGS T = 25°C, unless otherwise noted. A Table 5. Parameter Supply Voltage Output Short-Circuit Duration to GND Storage Temperature Range Operating Temperature Range Junction Temperature Range Lead Temperature, Soldering (60 sec) Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. This is a stress rating only ...

Page 7

... pF kΩ 0.80 0.75 0.70 0.65 +125°C 0.60 +25°C 0.55 –55°C 0.50 0.45 0.40 0.35 0. INPUT VOLTAGE (V) Figure 2. Supply Current vs. Temperature = 2 kΩ p- MHz 25°C, unless otherwise noted Rev Page ADR431-EP/ADR434-EP/ADR435-EP ...

Page 8

... ADR431-EP/ADR434-EP/ADR435-EP OUTLINE DIMENSIONS 0.25 (0.0098) 0.10 (0.0040) COPLANARITY ORDERING GUIDE Accuracy, ± Output 1 Model Voltage (V) (mV) ADR431TRZ-EP 2.500 1.0 ADR431TRZ-EP-R7 2.500 1.0 ADR434TRZ-EP 4.096 1.5 ADR434TRZ-EP-R7 4.096 1.5 ADR435TRZ-EP 5.000 2.0 ADR435TRZ-EP-R7 5.000 2 RoHS Compliant Part. ©2010 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners ...

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