LIDAR-Pulsed Time-of-Flight Reference Design Using High-Speed Data Converters
Description
Time-of-flight (ToF) optical methods for measuring distance with high precision are utilized in a variety of applications, such as laser safety scanners, range finders, drones, and guidance systems. This design details the advantages of a high-speed data-converter-based solution, including target identification, relaxed sample-rate requirements, and a simplified signal chain. The design also addresses optics, driver and receiver front-end circuitry, analog-to-digital converters (ADCs), digital-to-analog converters (DACs), and signal processing.
Features
- Measurement range of 1.5 m to 9 m
- Range measurement mean error of <±6 mm and standard deviation of <3 cm
- 5.75-W pulsed 905-nm near-infrared laser diode and driver with <1-mW average output power
- Laser collimation and photo receiver focusing optics
- 125-MSPS 15-bit ADC and 500-MSPS 16-bit DAC signal chains
- Pulsed ToF measurement method with DFT-based range estimation
| Download the bill of materials for TIDA-01187 | Download |
Design File
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Download the design file for TIDA-01187| Title | Updated | Type | Size (KB) | |
|---|---|---|---|---|
| Design Guide | 03 Feb 2017 | 1708 |