ADR444 Datasheet PDF | Analog Devices

Analog Devices ADR444

The ADR44x series is a family of XFET® voltage references featuring ultralow noise, high accuracy, and low temperature drift performance. 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.

Part No.	ADR444
Datasheet	ADR444 Download
Manufacturer	Analog Devices
Description	LDO XFET Voltage References
Buy	Stock & Price

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: (VOUT + 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

GENERAL DESCRIPTION

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 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.