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SLA32

Features

A 2 x 16 staggered element silicon-based thermopile array. Each active area is 0.05mm x 0.65mm with a time constant of 7ms and a very low Temperature Coefficient of Responsivity of -0.01%/°C. It is packaged in a 38-pin DIP.

Applications

Spectral analysis and line temperature measurements.

Benefit

A proven design with no readout electronics.

Options

  • See Standard Windows and Filters (PDF) for list of optical filter options.
  • Internal 30kΩ 5% NTC chip thermistor provides ambient package temperature measurement. See DC-4005 section of Thermistor Options (PDF).
  • SLA32 Thermopile Array

    SLA32 Thermopile Array

  • SLA32 Array circuit overlay

    SLA32 Array circuit overlay

Datasheet

For more detailed information see the datasheet:

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SLA32 277.40 KB
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Parameter Min Typical Max Symbol Units Comments
Active Area size 0.5 x .65 AA mm Hot junction size, per element.
Element Area .0325 A mm2
Number of Junctions 74 Per element.
Number of Channels 2 x 16 staggered Per detector package.
Output Voltage 10.0 14.8 20.0 Vs μV DC,  H=330μW/cm2 (3)
Signal-to-Noise Ratio 250 423 741 SNR √Hz DC, SNR=Vs/Vn
Responsivity 93.2 138.0 186.5 V/W DC, =Vs/HA  (2)
Resistance 45 76 100 R kΩ Detector element
Temperature Coefficient of -.01 %/°C Best linear fit, 0° to 85°C (1)
Temperature Coefficient of  R -.2 %/°C Best fit, 0° to 85°C (1)
Noise Voltage 27 35 40 Vn nV/√Hz Vn2=4kTR
Noise Equivalent Power .15 .26 .43 NEP nW/√Hz DC,  NEP= VnHA/Vs (2)
Detectivity 4.2 7.1 12.0 D* 108√Hz/W DC,  D*=Vs/ VnH√A  (2)
Time Constant 7 Τ ms Chopped, -3dB point (1)
Field of View N/A FOV Degrees See Assembly Drawings for FOV Description.
Package Type .97″ x 1.27″ Standard package hole size:Ø.437
Element Matching 5 10 M % M=|VA-VB|/VB (2)
Element Separation .61 mm Center to Center
Operating Temperature -50 100 Ta °C

Specifications apply at 23°C with KBr Window and Nitrogen encapsulating gas.

Export License Required

Not Currently RoHS Compliant

Technical Library

  • Icon
    Introduction to Thermopile Detectors 157.34 KB
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  • Icon
    Infrared Radiation and Radiometry Introduction 131.12 KB
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  • Icon
    Emissivity Correction for a Radiometer 120.07 KB
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  • Icon
    Thermopile Time Constant Determination 102.89 KB
    Download

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Phone: +1 (734) 426-3921 | Fax: +1 (734) 426-5090 | info@dexterresearch.com

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