Infrared Light Angle Sensor Data Sheet ADPD2140 FEATURES FUNCTIONAL BLOCK DIAGRAM XR XL YB YT 2-axis light angle measurement 5 6 7 8 Linear response to the angle of incident light Integrated visible light blocking optical filter No optics required and no need for precise alignment Low junction capacitance: 12.7 pF per channel at V = 0.2 V R Low reverse dark current: 1.74 pA at V = 0.2 V (all four R ADPD2140 channels connected in parallel) 4 8-lead, 2 mm 3 mm, 0.65 mm height, LFCSP PDC Figure 1. APPLICATIONS Gesture for user interface control in portable devices Object location tracking Industrial and automation monitoring Angle sensing Proximity sensing Object distance measurement (triangulation) GENERAL DESCRIPTION The ADPD2140 is an optical sensor that measures the angle of detect user hand movements for gesture recognition. The incident infrared light. Light angles calculated from the ADPD2140 ADPD2140 requires four photodiode channels. Therefore, use response are linear to 5 within an angular field of view of 35. the ADPD1080BCPZ with the ADPD2140. 2 The ADPD2140 has a radiant sensitive area of 0.31 mm . The Packaged in a small, clear mold, 2 mm 3 mm, 8-lead LFCSP, low junction capacitance and low dark current of the ADPD2140 the ADPD2140 is specified over the 40C to +85C operating allows optimal integration with the ADPD1080 photometric temperature range. front end. The ADPD2140 can be used with a synchronous infrared light source such as a light emitting diode (LED) to 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 16403-001ADPD2140 Data Sheet TABLE OF CONTENTS Features .............................................................................................. 1 Typical Performance Characteristics ..............................................6 Applications ....................................................................................... 1 Theory of Operation .........................................................................7 Functional Block Diagram .............................................................. 1 Angular Response .........................................................................7 General Description ......................................................................... 1 Typical Connection Diagram ......................................................7 Revision History ............................................................................... 2 Applications Information .................................................................8 Specif icat ions ..................................................................................... 3 Gesture Recognition .....................................................................8 Absolute Maximum Ratings ............................................................ 4 Object Triangulation .....................................................................9 Thermal Resistance ...................................................................... 4 Evaluation Board Schematic and Layout .................................... 10 Soldering Profile ........................................................................... 4 Outline Dimensions ....................................................................... 12 ESD Caution .................................................................................. 4 Ordering Guide .......................................................................... 12 Pin Configuration and Function Descriptions ............................. 5 REVISION HISTORY 8/2018Revision 0: Initial Version Rev. 0 Page 2 of 12