LIDAR Pulsed Time of Flight Reference Design


Design files


Light Detection and Ranging (LIDAR) systems use the time taken by the light to fly back and forth to an object in an effort to measure the distance to this target.  The TIDA-00663 reference design shows how to design the time measurement back-end for LIDAR based on Time to Digital Converter (TDC) as well as associated front-end.  The LIDAR pulsed time of flight reference design can be used in all those applications where measuring distance to the target by establishing a physical contact is not possible.  Typical examples include measuring presence of objects on a conveyor belt in logistic centers, ensuring safety distances around moving robot arms among many others.

  • LIDAR pulsed time of flight measurement
  • Distance resolution at system level <1cm
  • TDC resolution of 1.65cm and a white noise of 1.05cm RMS
  • TX energy: 70W peak over 40ns
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A fully assembled board has been developed for testing and performance validation only, and is not available for sale.

Design files & products

Design files

Download ready-to-use system files to speed your design process.


Reference design overview and verified performance test data


Detailed schematic diagram for design layout and components


Complete listing of design components, reference designators, and manufacturers/part numbers


Detailed overview of design layout for component placement


Files used for 3D models or 2D drawings of IC components

TIDCD15.ZIP (440 K)

Design file that contains information on physical board layer of design PCB

TIDRPA3.PDF (1572 K)

PCB layer plot file used for generating PCB design layout


Includes TI products in the design and potential alternatives.

AND gates

SN74LVC1G081-ch, 2-input 1.65-V to 5.5-V 32 mA drive strength AND gate

Data sheet: PDF

TLV35024.5ns Rail-to-Rail Comparator

Data sheet: PDF | HTML
Digital potentiometers (digipots)

TPL0202-10256-tap dual-channel digital potentiometer (digipot) with SPI and nonvolatile memory

Data sheet: PDF | HTML
Inverting buffers & drivers

SN74LVC2G142-ch, 1.65-V to 5.5-V inverters with Schmitt-Trigger inputs

Data sheet: PDF | HTML
Load switches

TPS229682-ch, 5.5-V, 4-A, 25-mΩ load switch with adj. rise time and output discharge

Data sheet: PDF | HTML
Low-side drivers

UCC27321Automotive 9-A/9-A single-channel gate driver with inverting input

Data sheet: PDF | HTML
Transimpedance amplifiers

OPA857Ultralow-Noise, Wideband, Pseudo-Differential Output Transimpedance Amplifier

Data sheet: PDF | HTML
Ultrasonic sensor AFEs

TDC7200Time-to-digital converter for time-of-flight (ToF) applications for LIDAR and ultrasonic

Data sheet: PDF | HTML

Technical documentation

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Type Title Date
* Design guide LIDAR Pulsed Time of Flight Reference Design (Rev. B) Jan. 22, 2018
E-book Ein Techniker-Leitfaden für Industrieroboter-Designs Mar. 25, 2020
E-book E-book: An engineer’s guide to industrial robot designs Feb. 12, 2020

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