TP337 ETC1 | Alldatasheet
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Thermopile Infrared Sensor TP337 /G01/G01 /G01/G01Features The thermopile sensor consists of a series of 116 thermoelements, forming a sensitive region size of 545/G02m (diameter). The sensor is hermetically sealed into a TO-5 metal housing, with an optical filter. This standard filter allows measurements to be made in the spectral range above 5/G02 m wavelength. The thermosensor exhibits an almost white noise, comparable to an ohmic resistance. It has a constant signal versus frequency up to its frequency limit, and is directly proportional to incident radiation. The thermopile sensors are featured with an additional temperature reference resistor on the same chip. The standard version of temperature reference resistor is housing connected to ground. /G01/G01 /G01/G01Applications * Ear thermometers; clinic thermometers * Infrared thermometers * Consumer applications: hair dryer, micro-wave oven, air conditioner, refrigerator * Continuous temperature control of manufacturing * Security system * Radiation monitor switch system * Absorbing measurement for gas analysis * Thermoelectric converter * Heat flux flowmeter
Thermopile Infrared Sensor TP337 /G01/G01 /G01/G01Electrical Characteristics Parameter Condition Min. Typ. Max. Unit Thermopile Number of thermojunctions --- 116 --- Chip size --- 1740*1740 --- /G01m2 Active region size Interference layer --- Diameter 545 --- /G01m Thickness of substrate Silicon- substrate 600 625 650 /G01m Resistance of thermopile 25 /G02 50 60 70 K /G03 Sensitivity With 5-14/G01m filter 70 85 100 V/W Detecctivity 1.0*10 8 1.3*108 1.7*108 cm*Hz1/2/W Time constant --- 16 --- ms Noise voltage 28 31 33 nV/Hz 1/2 NEP 0.28 0.36 0.48 nW/Hz 1/2 Temperature range Operation -20 --- 100 /G02 Temperature reference resistor --- Resistance 25 /G02 29.1 30.0 30.9 K /G03 Temperature coefficient of resistance 25/G02 3773 3811 3849 K Measured at 1 Hz chopper frequency, within spectral range 5-14/G02m, using a blackbody radiator of 500K temperature. Note : Thermistor should be operated under 1mA.
Thermopile Infrared Sensor TP337 /G01/G01 /G01/G01Thermopile voltage vs. blackbody temperature /G01/G01 /G01/G01Frequency response
Thermopile Infrared Sensor TP337 /G01/G01 /G01/G01Field of view 1) window size: 2.57mm (diameter) 2) window size: 3.80mm (diameter) 337A 337E
Thermopile Infrared Sensor TP337 /G01/G01 /G01/G01Thermistor vs. temperature The resistance of the temperature reference resistor varies with temperature and the behaviour is illustrated in the following figure. At temperature 25/G03, R(T)=R25e/G01 − /G01/G02/G01 /G02 /G01 /G02 describes the resistance vs. temperature, where R25 is the resistance at ambient temperature 25/G03 and T, T25 are the ambient temperatures in unit of kelvin degrees.
Thermopile Infrared Sensor TP337 /G01/G01 /G01/G01Pin assignment & description 2 thermistor pin 4 thermistor pin (GND) 1 thermopile output pin (+) 3 thermopile output pin (-) /G01/G01 /G01/G01Order information : TP337/G04/G04 /G04/G04 /G04: A : Standard filter (5-14 /G02m), window size=2.57mm (diameter). B : Silicon filter with flat band transmission, window size=2.57mm (diameter). E : Standard filter (5-14 /G02m), window size=3.80mm (diameter). F : Silicon filter with flat band transmission, window size=3.80mm (diameter). 2(R) 3(V-) 1(V+) 4(GND) BACKSIDE VIEW Thermistor Thermopile SIDE VIEW
Thermopile Infrared Sensor TP337 /G01/G01 /G01/G01Transmission of filter Transmission of optical filter is measured by FTIR from 2/G02m /G01/G01 /G01/G01Package The sensor is hermetically sealed into a TO-5 metal housing, with an optical filter. This standard filter allows measurements to be made in the spectral range above 5 /G02m wavelength. The dimensions of header and cap are shown below. /G01 /G01
Thermopile Infrared Sensor TP337 TP337A TP337E Window IR filter ȥ2.57 ȥ5.4 ȥ8.15 Window IR Filter Window IR filter ȥ3.80 ȥ8.17 IR Filter WIindow Cap 0.43 2.00 Unit: mm 4.6 Header Unit: mm Chip Cap Header 2.00 4.6 0.43
Thermopile Infrared Sensor TP337 /G01/G01 /G01/G01Application circuit Circuit 1 : Circuit 2 : +5V Adder Vout Thermopile (-) Thermopile (+) R13 R10 R11 R12 +5V reference resistor Ambient Temperature Compensation CircuitPre-Amplification Circuit C1 R1 OP Vout +5V Reference Resistor Thermopile