Planar Multi Channel Detectors

Here you can find planar multi channel detectors from InfraTec.

Dual, triple and quad channel infrared detectors for gas analysis and flame detection sensors where more than one element or event is to be detected.

Available with reduced microphonic effect
JFET or CMOS amplifier

Planar multi channel pyroelectric detectors from InfraTec

Planar Multi Channel Detectors

Parameters

Type

LIE, LIM: Detectors with standard design
LME, LMM: Detectors with reduced microphonic effect
LRE, LRM: Detectors with micromechanical frame
LRD, LID: Detector with digital Interface

Housing

TO18, TO46: 5.4 mm in diameter
TO5, TO39: 9.2 mm in diameter
TO8: 15.2 mm in diameter
Channel

Number of measuring channels

Aperture (mm)

Size of the circular or rectangular aperture through which radiation hits the sensitive elements.

Operating modes

Voltage Mode: The pyroelectric current is initially converted into a voltage by an RC network followed by a conversion to lower impedance.

Current Mode: The pyroelectric current is permanently compensated by an OpAmp. The current required for this generates a voltage drop across an RC network in the feedback path which serves as the measurement signal.

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.

Type	Housing	Number of Channels	Aperture (mm)	Operating Mode	Amplifier	Specific Detectivity*	Download further Information
LIM-222	TO39	2	ø 6.0	Voltage Mode	JFET	4.5	LIM-222
LIM-262	TO39	2	ø 6.0	Current Mode	OpAmp	4.5	LIM-262
LIM-272	TO39	2	ø 6.0	Current Mode	OpAmp	3.0	LIM-272 Single supply operation
LMM-244	TO8	4	ø 9.5	Current Mode	OpAmp	5.0	LMM-244
LMM-274	TO8	4	ø 9.5	Current Mode	OpAmp	5.0	LMM-274 Single supply operation

* in 108 cm√Hz/W (500 K, 10 Hz, 1 Hz BW, 25°C, without window)

** in 108 cm√Hz/W (500 K, 1 kHz, 1 Hz BW, 25°C, without window)

*** bei Rfb = 128 GΩ, Cfb=200 fF

Planar Multi Channel Detectors

Detectors for gas analysis and flame detection

Two, three or four spectral channels in one housing
Thermally compensated (optional)
With special chip holder for reducing the microphonic sensitivity (optional)
Low channel crosstalk (< 0.1 %)
Signal processing with JFET or operational amplifier

Would You Like to Know More?

It is not unusual for tasks to be associated with special requirements. Discuss your specific application needs with our experienced engineers, receive further technical information or learn more about our additional services.

+49 351 82876-700

sensor@infratec.co.uk

Send request

United Kingdom & Irland

InfraTec GmbH Infrarotsensorik und MesstechnikGostritzer Straße 61 - 6301217 DresdenGERMANY

Detector Search

InfraTec offers different product groups including approximately 50 standard pyroelectric detectors. Detectors with reduced microphone technology and integrated operational amplifier as well as digital detectors are part of our product range.

Choose your suitable infrared detectors with the help of our detailed detector search.

Overview of all standard infrared detectors

Sensor division InfraTec detectors overview

Further Pyroelectric Detectors from InfraTec

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Choice between different PYROMID® detectors

Dual, quad and eight channel detectors for gas analysis and flame detection
Individually customizable, e.g. with option for JFET, operational amplifier, integrated beam splitter, etc.

Planar Multi Channel Detectors

Choice between different standard planar multi channel detectors

Two, three or four spectral channels in one housing
Individually customizable, e.g. with option for JFET, operational amplifier etc.

Special Detectors

Single-channel for analytical instruments and spectroscopy.

High performance
Fast response
Metal black coating