Proximity sensors

Understand your surroundings using our high-speed, high-resolution AFE for time-of-flight (ToF) based proximity and distance sensing.

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Our proximity sensing products, tools, and development kits enable the next generation of optical sensing systems such as factory automation, building automation, appliances, and more. Our devices allow for full customization of every aspect of your design using TI’s time-of-flight chipsets in your long-range distance measurements, obstacle detection, or avoidance applications.

Why choose our proximity and distance sensors?


System design flexibility

Detect near and far objects of various shapes, sizes, colors, materials and reflectivity levels in a wide or narrow field of view (FoV).


Precision distance measurements

Accurately detect objects with a 3-mm resolution at a range of 3 centimeters to 15 meters.


Target localization

Determine object distance and direction using up to 3 sensing zones.

Technical resources

Video series
Video series
TI Precision labs - Time of flight training series
Learn about the time of flight and proximity sensing technology and the tools we offer for easy implementation into industrial and consumer applications.
Application note
Application note
Introduction to Time-of-Flight Long Range Proximity and Distance Sensor System (Rev. B)
This document describes the detailed functionality of Time of Flight proximity systems, explains the trade-offs involved in a typical Time of Flight system, and provides a step by step design flow.
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Application note
Application note
How to select the right proximity sensor technology
Take a look at our infographic to quickly understand the pros and cons of each proximity sensing technology we offer including optical time of flight.
document-pdfAcrobat PDF

Design & development resources

Simulation tool
OPT3101 system estimator tool

The OPT3101 system estimator tool analyzes the performance of the OPT3101, which is a time-of-flight (ToF)-based, long-range proximity and distance sensor analog front end (AFE). The tool determines if the OPT3101 is able to meet design requirements under various conditions.

Software development kit (SDK)
OPT3101 software development kit (SDK)

The OPT3101 software development kit (SDK) provides a C++ library of functions to control and calibrate systems using the OPT3101, which is a time-of-flight (ToF)-based, long-range proximity and distance sensor analog front end (AFE).

IDE, configuration, compiler or debugger
OPT3101 configurator tool

The OPT3101 time-of-flight (ToF) analog front end (AFE) configurator tool is an offline graphical user interface (GUI) for customizing the configuration of the OPT3101, which is a ToF-based, long-range proximity and distance sensor AFE. OPT3101CONFIG-SW provides a high level of (...)