GENERAL DESCRIPTION

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.

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

ADR441A属于集成电路（IC） > 电压基准。亚德诺半导体技术有限公司制造生产的ADR441A电压基准产品属于基准电压源系列，可通过相对较不稳定的电源提供稳定的电势，电压值始终保持恒定，以便在测量、控制和类似应用中用作比较的标准。其功能行为可能与用于大功率调节的线性稳压器相似，但基准电压源器件却不适合用于此类用途。用作比较标准时，若输出电流容量或实际负载电流增大，其性能通常会降低。