Ultralow Noise, LDO XFET Voltage Reference with Current Sink and Source Enhanced Product ADR441-EP FEATURES TYPICAL APPLICATION CIRCUIT Ultralow voltage noise (0.1 Hz to 10 Hz): 1.2 V p-p DNC 1 8 DNC Superb temperature drift: 5 ppm/C V ADR441-EP IN 2 7 NIC Low dropout operation (supply voltage headroom): 500 mV TOP VIEW + V OUT (Not to Scale) 10F 0.1F NIC 3 6 Supply voltage operating range: 3 V to 18 V GND 0.1F High output source and sink current 4 5 TRIM +10 mA and 5 mA, respectively NOTES 1. NIC = NOT INTERNALLY CONNECTED. ENHANCED PRODUCT FEATURES THIS PIN IS NOT CONNECTED INTERNALLY. 2. DNC = DO NOT CONNECT. DO NOT CONNECT TO THIS PIN. Supports defense and aerospace applications (AQEC Figure 1. standard) Military temperature range (55C to +125C) Controlled manufacturing baseline 1 assembly/test site 1 fabrication site Product change notification Qualification data available on request APPLICATIONS Precision data acquisition systems High resolution data converters Battery-powered instrumentation Precision instruments Military communication Unmanned systems Avionics GENERAL DESCRIPTION 1 The ADR441-EP is a XFET voltage reference featuring The ADR441-EP has the capability to source up to +10 mA of ultralow noise, high accuracy, and low temperature drift output current and sink up to 5 mA. The device also comes with a trim terminal to adjust the output voltage over a 0.5% performance. Using Analog Devices, Inc., temperature drift curvature correction and extra implanted junction FET (XFET) range without compromising performance. technology, voltage change vs. temperature nonlinearity in the The ADR441-EP is available in an 8-lead, narrow SOIC package. ADR441-EP is greatly minimized. The ADR441-EP is specified over the military temperature range The XFET reference offers better noise performance than buried of 55C to +125C. Additional application and technical Zener references, and the XFET reference operates off information can be found in the ADR441 data sheet. low supply voltage headroom (500 mV). This combination of features makes the ADR441-EP ideally suited for precision signal conversion applications in high end data acquisition systems, military communication, and avionics applications. 1 Protected by U.S. Patent Number 5,838,192. Rev. 0 Document Feedback 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 One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. rights of third parties that may result from its use. Specifications subject to change without notice. No Tel: 781.329.4700 2018 Analog Devices, Inc. All rights reserved. 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. Technical Support www.analog.com 17030-001ADR441-EP Enhanced Product TABLE OF CONTENTS Features .............................................................................................. 1 Absolute Maximum Ratings ............................................................4 Enhanced Product Features ............................................................ 1 Thermal Resistance .......................................................................4 Applications ....................................................................................... 1 ESD Caution...................................................................................4 Typical Application Circuit ............................................................. 1 Pin Configuration and Function Descriptions ..............................5 General Description ......................................................................... 1 Typical Performance Characteristics ..............................................6 Revision History ............................................................................... 2 Outline Dimensions ..........................................................................8 Specifications ..................................................................................... 3 Ordering Guide .............................................................................8 Electrical Characteristics ............................................................. 3 REVISION HISTORY 7/2018Revision 0: Initial Version Rev. 0 Page 2 of 8