Teledyne SP Devices

LiDAR - Light Detection and Ranging

  • LiDAR

    When LiDAR (Light Detection And Ranging) is used for mapping the shore line it is necessary to measure above and below the water level. This technique is used for monitoring meandering rivers and studying flood risk and erosion of the coast line. These environments have different requirements on a LiDAR system. An infrared laser is used for land and a green laser to penetrate the water (topo-bathymetric LiDAR). In good conditions, a depth of up to 50 meters can be monitored. This LiDAR application puts several requirements on the waveform digitizer including high resolution amplitude capability (a Time to Digital Converter (TDC) is not enough) and high channel count to accommodate certain laser requirements.

    Recommended Products

    SP Devices’ offers several waveform digitizers suitable for LIDAR applications:

    • ADQ14DC-4C offers 4 channels at 1 GSPS with 14 bits resolution. The high vertical resolution allows for accurate images during underwater surveys. The four channels are available for multiple detectors connected to lasers with different wavelengths. The ADQ14 also allows for high throughput to the PC for fast scanning capabilities. Input impedance matching is also important, especially in an over voltage condition. The signals are strong and the over voltage protection circuitry often acts as a non-linear current sink. To avoid the non-linear condition and resulting large reflections during over voltage, the first stage of the ADQ14DC is linear and resistive. This means that there is an attenuation of reflections even in an over voltage scenario.
    • ADQ412-4G also offers 4 channels, but at 2 GSPS per channel and with 12 bits vertical resolution.
    • ADQ7DC offers 1 or 2 channels with 10 or 5 GSPS per channel and with 14 bits vertical resolution.


    Read more about LiDAR in "Full waveform hyperspectral LiDAR for terrestrial laser scanning".

  • LiDAR
    Click to show more images
  • LiDAR
    Click to show more images


    • Single/dual channel
    • Up to 10 GSPS sampling rate
    • Up to 3 GHz input bandwidth
    • DC-coupled

    Learn More
  • ADQ14
    • Single/dual channel
    • Up to 2 GSPS sampling rate
    • Up to 1.2 GHz input bandwidth
    • DC-coupled

    Learn More
  • ADQ14
    • Dual/quad channel
    • Up to 4 GSPS sampling rate
    • Up to 2 GHz input bandwidth
    • AC-coupled

    Learn More

  • "The technical and intellectual support from the team at Teledyne SP Devices has been playing an important role in our research."

    Associate Professor at Hong Kong University (HKU)
    who has implemented a system supporting line scan rates of 10M lines/s

  • "I can state that ADQ7DC is the best digitizer for high resolution positron lifetime spectroscopy I found on the market."

    prof. Jakub Čížek, Department of Low Temperature Physics at Charles University, Prague

  • "The ADQ7DC digitizer is the best device of this type available on the market with high sampling rate, wide analog bandwidth, quality and stability of signal acquisition. A professional team of the SP Devices engineers ensure support and quick response to the inquiries."

    M. Sc. Grzegorz Nitecki, Faculty of Electronics, Military Academy of Technology, Warsaw, Poland

  • Send us an email, call our headquarters or check our Contact page to find your local sales representative.

    Call Us Email Us

  • Sign up for our newsletter and stay up-to-date on new products and updates.

    Sign Up For Newsletter ISO logo

We use cookies on our website. Some of them are essential for the operation of the site, while others help us to improve this site and the user experience (tracking cookies). You can decide for yourself whether you want to allow cookies or not. Please note that if you reject them, you may not be able to use all the functionalities of the site.