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TPMI Dataheets PDF



Part Number TPMI
Manufacturers PerkinElmer Optoelectronics
Logo PerkinElmer Optoelectronics
Description Thermopile Sensor Module
Datasheet TPMI DatasheetTPMI Datasheet (PDF)

www.DataSheet4U.com T E C H N I C A L Optoelectronics TPMI™ - Thermopile Sensor Module With Integrated Signal Processing Features • Smart thermopile sensor with integrated signal processing • Adaptable for specific measurement tasks • Integrated, calibrated ambient temperature sensor • Output signal ambient temperature compensation • Fast reaction time • Various optics and IR filters available • Digital serial interface for calibration and adjustment purposes • 8 bit resolution • Analog front.

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www.DataSheet4U.com T E C H N I C A L Optoelectronics TPMI™ - Thermopile Sensor Module With Integrated Signal Processing Features • Smart thermopile sensor with integrated signal processing • Adaptable for specific measurement tasks • Integrated, calibrated ambient temperature sensor • Output signal ambient temperature compensation • Fast reaction time • Various optics and IR filters available • Digital serial interface for calibration and adjustment purposes • 8 bit resolution • Analog front-end/back-end, digital signal processing • E2PROM configuration and data storage • Two configurable comparators with high/ low signal for remote temperature threshold control • TO-39; 6 pin housing N O T E Description In recent years, thermopile detector technology has opened up a large variety of industrial and commercial applications for non-contact, infrared temperature measurements. Aside from well-known thermopile applications in ear thermometers and hand held pyrometers, new applications include temperature control in microwave ovens or other household appliances such as toasters and hair dryers, home and automotive climate control, and a growing number of other industrial functions. Most of these applications require an accurate signal output independent from ambient temperature variations. Up to now, this was achieved by external analog signal-processing circuits or, for high accurate devices, by an external microcontroller. However, with growing high-volume applications, there is a strong demand for miniaturization and simplification of the circuitry. PerkinElmer Optoelectronics now satisfies this demand by providing the very first fully integrated and precalibrated thermopile module, TPMI, in a TO-5 size housing. Depending on the temperature range, an accuracy up to ±1 °C is achievable. Its modular design, where optics, spectral filter ranges, PCB geometry, and connectors can be chosen individually, makes it the ideal infrared solution for the flexible implementation of remote temperature measurement into any application. Applications • Miniature, remote non-contact temperature measurement (pyrometer) • Temperature-dependent switch for alarm or thermostatic applications • Residential, commercial, automotive, and industrial climate control • Household appliances featuring a remote temperature control, i.e., microwave ovens, toasters, or hair dryers • Temperature control for laser printers and copiers w w w. p e r k i n e l m e r. c o m / o p t o e l e c t r o n i c s TPMI™ - Thermopile Sensor Module With Integrated Signal Processing Processing Intr oduction The new integrated thermopile module consists of a thermopile chip and an ASIC, for signal processing, ambient temperature measurement and compensation of the object temperature, in a TO-5 sized housing. The implemented serial communication interface allows fully automated trimming and calibration of the sensor. The compact device has only 6 connection pins, from which only 3 are needed in remote temperature measurement applications. This sensor is offered either as single component with integrated optics or on a printed circuit board (PCB) with mirror optics and connectors. The TPMI targets applications where high accuracy, compact size, long term stability and low cost are essential in industrial, home appliance or automotive applications. The new TPMI solution is a significant improvement over the current PerkinElmer thermopile module (TPM), which employs an external discrete circuit on a PCB for the amplification of the signals and for the necessary ambient temperature compensation. In short, the new TPMI offers the following advantages over the current solution: • Compact TO-5 sized housing; calibration of ambient temperature sensor and object temperature output performed within ASIC, • No external components required; PCB version for upgrade compatibility to current thermopile modules available (see Fig. 3), • Effective shielding of low level sensor signals against electromagnetic interferences, • Output pins carry amplified signals in the voltage range, which make the sensor module insensitive against humidity and leakage currents on PCB or assembly. Figure 1 Figure 2 TPMI on printed circuit board (PCB) with mirror optics. No external components are required. The PCB, however, allows the possibility to add external low pass (integrating) filters. The shown version is compatible to the PerkinElmer TPMF1 thermopile module. The hybrid setup of the PerkinElmer thermopile module with integrated read-out ASIC. Design Concept The design of the new integrated thermopile sensor module includes at first the thermopile detector chip itself. Further, the ambient temperature sensor and the signal processing electronics, usually required in addition to the thermopile detector, are integrated in a mixed analog/digital ASIC with the following features: • Adjustable low noise amplifier for amplification of the signal generated by the thermopile chip, • Te.


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