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 supply headroom (2 V) than buried Zener references. Buried Zener references require more than 5 V headroom for operations. 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 output current and sink up to 20 mA. It also comes with a trim terminal to adjust the output voltage over a 0.5% range without compromising performance.
The ADR43x is available in 8-lead MSOP and narrow SOIC packages. All versions are specified over the extended industrial temperature range of −40°C to +125°C.
The ADR435-EP Supports defense and aerospace applications (AQEC standard)Applications
|Title||Content Type||File Type|
|ADR430/ADR431/ADR433/ADR434/ADR435/ADR439: Ultralow Noise XFET Voltage References with Current Sink and Source Capability Data Sheet (Rev J, 07/2011) (pdf, 1847 kB)||Data Sheets|
|ADR431-EP/ADR434-EP/ADR435-EP: Low Noise XFET Voltage References with Current Sink and Source Capability (Rev A, 08/2010) (pdf, 145 kB)||Data Sheets|
|ADR431/ADR434/ADR435-DSCC: Microcircuit, Linear, Low Noise, Voltage Reference, Monolithic Silicon Military Data Sheet (Rev A, 12/2010) (pdf)||Data Sheets|
|AN-713: The Effect of Long-Term Drift on Voltage References (pdf, 237 kB)||Application Notes|
|CN-0261: Optimizing AC Performance in an 18-bit, 250 kSPS, PulSAR Measurement Circuit (pdf, 327 kB)||Circuit Note|
|CN0305: A 16-Bit, 300 kSPS Low Power Successive Approximation ADC System with Optimum Low Power Drive Amplifier for Sub-Nyquist Input Signals Up to 4 kHz (pdf, 271 kB)||Circuit Note|
|CN-0306: A 16-Bit, 100 kSPS Low Power Successive Approximation ADC System with Optimum Low Power Drive Amplifier for Sub-Nyquist Input Signals Up to 1 kHz (pdf, 306 kB)||Circuit Note|
|CN-0240: Bidirectional Isolated High-Side Current Sense with 270 V Common-Mode Rejection (pdf, 336 kB)||Circuit Note|
|CN-0180: Precision Single-Supply Differential ADC Driver for Industrial-Level Signals (pdf, 388 kB)||Circuit Note|
|CN-0131: 16 Channels of Programmable Output Span Using the AD5360 16-Bit Voltage Output DAC (pdf, 85 kB)||Circuit Note|
|CN-0130: Integrated Device Power Supply (DPS) for ATE with Output Voltage Range 0 V to 25 V (pdf, 231 kB)||Circuit Note|
|CN-0123: Automated Calibration Technique That Reduces the AD5360 16-Channel, 16-Bit DAC Offset Voltage to Less Than 1 mV (pdf, 132 kB)||Circuit Note|
|CN-0104: Parametric Measurement Unit and Supporting Components for ATE Applications Using the AD5522 PMU and the AD7685 16-Bit ADC (pdf, 247 kB)||Circuit Note|
|CN-0033: Converting a Single-Ended Signal with the AD7984 Differential PulSAR ADC (pdf, 98 kB)||Circuit Note|
|CN-0032: Converting a Single-Ended Signal with the AD7982 Differential PulSAR ADC (pdf, 99 kB)||Circuit Note|
|Low Cost, Low Power, High Performance AED||Technical Articles||HTML|
|High Performance Electrocardiogram (ECG) Signal Conditioning||Technical Articles||HTML|
Low-Power Data Conversion Technology Enhances Portability
|ADR43x: The Newest Family of High Precision, Low Noise XFET®||Overview||HTML|
ICs for Programmable Logic Control and Distributed Control Systems
(pdf, 976 kB)
Analog Devices leadership in industrial IC technology, with the development of the iCMOS™ and iPolar™ processes, has uniquely defined high voltage and low voltage integration to deliver smaller, higher performance, and more cost effective ICs for industrial systems.
|RAQs index||Rarely Asked Questions||HTML|
|What do I need to know about selecting and using Voltage References?||FAQs/RAQs||HTML|
|Glossary of EE Terms||Glossary||HTML|
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|Voltage Reference Selection & Evaluation Wizard||Design Calculators||HTML|
Symbols and Footprints— Analog Devices offers Symbols & Footprints which are compatible with a large set of today’s CAD systems for broader and easier support.
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