LIDAR Pulsed Time of Flight Reference Design

(ACTIVE) TIDA-00663

Description & Features

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Key Document

Description

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.

Features
  • 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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Schematic/Block Diagram

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Design Guide

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Design Files

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Bill of Materials (BOM)

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TI Devices (8)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
OPA857  Ultralow-Noise, Wideband, Pseudo-Differential Output Transimpedance Amplifier  Operational amplifiers (op amps)  Sample & Buy View Design Kits & Evaluation Modules
SN74LVC1G08  Single 2-Input Positive-AND Gate  Gate  Sample & Buy View Design Kits & Evaluation Modules
SN74LVC2G14  Dual Schmitt-Trigger Inverter  Buffer/driver  Sample & Buy View Design Kits & Evaluation Modules
TDC7200  Time-to-Digital Converter for Time-of-Flight Applications in LIDAR, Magnetostrictive and Flow Meters  Specialty sensors  Sample & Buy View Design Kits & Evaluation Modules
TLV3502  4.5ns Rail-to-Rail Comparator  Amplifiers  Sample & Buy Not Available
TPL0202-10  256-Taps Dual-Channel Digital Potentiometer With SPI Interface and Nonvolatile Memory  Data converters  Sample & Buy Not Available
TPS22968  5.5V, 4A, 25mΩ, 2-Channel Load Switch With Quick Output Discharge and Adjustable Rise Time  Power switches  Sample & Buy View Design Kits & Evaluation Modules
UCC27321  Single 9-A High Speed Low-Side MOSFET Driver With Enable  Gate drivers  Sample & Buy Not Available

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
OPA857 Download Download
SN74LVC1G08 Download Download
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SN74LVC2G14 Download
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TDC7200 Download Download
TLV3502 Download Download
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TPL0202-10 Download -
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UCC27321 Download Download
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Technical Documents

View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.

User guides (1)
Title Abstract Type Size (KB) Date Views TI Recommends
PDF 796 22 Jan 2018 0
Design files (6)
Title Abstract Type Size (KB) Date Views
ZIP 440 16 Dec 2016 0
ZIP 687 16 Dec 2016 0
PDF 1572 16 Dec 2016 0
PDF 306 16 Dec 2016 0
PDF 73 16 Dec 2016 0
PDF 481 16 Dec 2016 0

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