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.
Data Sheet, Rev. C, 3/08
|Title||Content Type||File Type|
|ADR440/ADR441/ADR443/ADR444/ADR445: Ultralow Noise, LDO XFET Voltage References with Current Sink and Source Data Sheet (Rev E, 11/2010) (pdf, 522 kB)||Data Sheets|
|CN-0272: 2 MHz Bandwidth PIN Photodiode Preamp with Dark Current Compensation (pdf, 376 kB)||Circuit Note|
|CN-0271:K-Type Thermocouple Measurement System with Integrated Cold Junction Compensation (pdf, 565 kB)||Circuit Note|
|CN-0067: Fully Isolated Input Module Based on the AD7793 24-Bit Σ-Δ ADC, the ADuM5401 Digital Isolator, and a High Performance In-Amp (pdf, 271 kB)||Circuit Note|
|CN-0066: Fully Isolated Input Module Based on the AD7793 24-Bit Σ-Δ ADC and the ADuM5401 Digital Isolator (pdf)||Circuit Note|
|CN-0028: Precision, Bipolar, Configuration for the AD5547/AD5557 DAC (pdf, 86 kB)||Circuit Note|
|CN-0027: Precision, Unipolar, Noninverting Configuration for the AD5547/AD5557 DAC (pdf, 90 kB)||Circuit Note|
|UG-181: PLC Demo System User Guide (pdf, 541 kB)||User Guides|
Low-Power Data Conversion Technology Enhances Portability
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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.
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