Planar multi channel pyroelectric detectors from InfraTec

Planar Multi Channel Detectors

Detectors for gas analysis and flame detection

  • Two, three or four spectral channels in one housing
  • Low channel crosstalk (< 0.1 %)
  • Signal processing with JFET or operational amplifier
  • Thermally compensated (optional)
  • With special chip holder for reducing the microphonic sensitivity (optional)
PYROMID® multi channel pyroelectric detectors from InfraTec
PYROMID® Multi Channel Detectors

PYROMID® Multi Channel Detectors

Dual and quad channel detectors for gas analysis

  • Integrated beam splitter in the detector or micromechanical frame for compact design
  • One common aperture opening for all channels
  • Inside filter, common entry window
  • Low channel crosstalk (< 0.1 %)
  • Signal processing with JFET or operational amplifier

Multi Channel Detectors

Type LIE, LIM: Detectors with standard design
LME, LMM: Detectors with reduced microphonic effect
LRE, LRM: Detectors with micromechanical frame
LFP: Detectors with tunable Fabry‐Pérot filter
Housing TO18, TO46: 5.4 mm in diameter
TO5, TO39: 9.2 mm in diameter
TO8: 15.2 mm in diameter
The number following the hyphen indicates the number of pins.
Channel Number of measuring channels
Aperture (mm) Size of the circular or rectangular aperture through which radiation hits the sensitive elements.
Operating modes Size of the circular or rectangular aperture through which radiation hits the sensitive elements.
JFET/OpAmp Integrated signal condition like integrated junction field effect transistors (JFET) for detectors in voltage mode or integrated operational amplifiers (OpAmp) for detectors in current mode.
Thermal Compensation A pyroelectric detector is sensitive to changes in temperature. Changes in ambient temperature have an influence on the measurement signal and shifts the operating point. This effect reduces a thermal compensation. Therefore, each pyroelectric element gets an additional optically inactive element, which compensates for unwanted currents.
Low Micro Patented micromechanical chip attachment (LowMicro) by InfraTec to reduce the effects of interfering impact sounds.
Detectivity* As a key parameter, the specific detectivity D* characterizes the signal-to-noise ratio of infrared detectors.
InfraTec Detector Filter Multi Channel Detectors
Aperture (mm)
Operating modes
Thermal Compensation
Low Micro
Download further information
LIM-011TO84ø 2.5Voltage ModeJFETNoNo0.8LIM-011


LIM-054TO842.8 x 2.8Current ModeOpAmpNoNo0.42LIM-054


LIM-214TO84ø 9.5Voltage ModeJFETYesNo4.5LIM-214
LIM-314TO84ø 9.5Voltage ModeJFETYesNo3.5LIM-314
LMM-244TO84ø 9.5Current ModeOpAmpYesYes6.0LMM-244
LMM-274TO84ø 3.5Current ModeOpAmpYesYes6.0LMM-274

Single supply operation

LRM-244TO848.5 x 8.5Current ModeOpAmpYesNo6.0LRM-244

Single supply operation

LRM-278TO888.5 x 8.5Current ModeOpAmpYesNo4.5LRM-278



LRM-102TO1823.05 x 2.05Voltage ModeJFETNoNo4.0LRM-102
LRM-202TO1823.05 x 2.05Voltage ModeJFETYesNo4.0LRM-202
LIM-032TO3922.8 x 2.8Voltage ModeJFETNoNo2.9LIM-032


LIM-222TO392ø 6.0Voltage ModeJFETYesNo4.5LIM-222
LIM-262TO392ø 6.0Current ModeOpAmpYesNo4.5LIM-262
LIM-272TO392ø 6.0Current ModeOpAmpYesNo3.0LIM-272

Single supply operation

LRM-254TO3945.0 x 5.0Voltage ModeJFETYesNo4.7LRM-254
LRM-284TO3945.0 x 5.0Current ModeOpAmpYesNo4.5LRM-284

Single supply operation

*(500 K, 10 Hz, 1 Hz, 25 ºC, without window) [10E+8cmHz1/2/W]

PYROMID® Brochure

Get further information about miniaturised detectors for gas analysis and flame detection.

PYROMID® Multi Channel Detectors

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InfraTec offers five different product groups including approximately 50 standard pyroelectric detectors. Choose your suitable infrared detectors with the help of our detailed detector search.

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