LDB / LSB Series

InGaAs Linear Photodiode Arrays

The LDB / LSB-series linear InGaAs photodiode arrays have set the standard for high performance in near-infrared spectroscopy and imaging applications.

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    SUI produces LDB / LSB InGaAs array products with 256 and 512 elements on a 25 µm or 50 µm pixel pitch with pixel heights of 250 and 500 µm. Standard wavelength range of 0.8 to 1.7 μm, a shorter range of 0.8 to 1.45 μm or extended wavelength range of 1.1 to 2.2 μm. These channels are 100% operable and have unmatched uniformity. The photodetector arrays are hybridized with CMOS readout integrated circuits (ROIC) of SUI exclusive design to offer maximum noise immunity and sensitivity.

    Operating circuit designs need only provide for one analog supply and two digital control lines for optimum ROIC performance. Two separate gains are selectable with a single input. Arrays are available with thermoelectric coolers for temperature stabilization and monitoring. These arrays are widely used for optical performance monitoring of S, C & L band channels in DWDM networks. Other applications include agricultural sorting, biomedical analysis, thermal imaging and industrial process control.  The SUI LDB / LSB-Series photodiode arrays are telecommunication system reliable and available in volume.

    • Easy to use analog design
    • 25 µm or 50 µm pitch – one-half inch and one-quarter inch array
    • Wavelength ranges of 0.8 to 2.2 μm
    • Pixel heights of 250 μm or 500 μm
    • Antiblooming to prevent charge overflow from saturated pixels
    • Two separate gains are selectable with a single input
    • Available with 1 or 2 stage thermoelectric cooler, or without a cooler for uncooled or externally-cooled operation
    • Max lps 5KHz – Analog output
    • ESD Resistant

    Commercial Applications

    • Optical performance monitoring of S, C & L band channels in DWDM networks
    • Agricultural sorting
    • Biomedical analysis
    • Thermal imaging
    • Industrial process control
    Support Documents
    LDB-LSB Series Sales Sheet (pdf) LDB / LSB / LE / LSE Data Sheet (pdf) InGaAs Photodiode Linear Array Product Family Datasheet (pdf) Linear Array QE Chart (pdf) RMA Form (pdf)

    These commodities, technology and/or software are subject to the Export Administration Act as promulgated by the Export Administration Regulations. Diversion contrary to U.S. law is prohibited.

     LDB (Tall Pixel) Series    
     Export Classification:  EAR EAR99  HTS – 8541.40.6050
     LDB (Square Pixel) Series    
     Export Classification:  6A002.a.3.d.2.a.  HTS – 8541.40.6050

    The Harmonized Tariff Schedule codes of the line items of merchandise contained in this document are accurate to the best of our knowledge as of May 21, 2021.  RTX does not assume any liability that should arise from the provision of this information in connection with national customs laws and regulations or other international trade requirements.