A2TPMI Datasheet, PDF (1/21 Pages) PerkinElmer Optoelectronics – Thermopile with integrated signal processing circuit

Datasheet A2TPMI ^Ô
Thermopile with integrated signal processing circuit
FEATURES
· Smart thermopile sensor with integrated
signal processing.
· Can be adapted to your specific meas-
urement task.
· Integrated, calibrated ambient tempera-
ture sensor.
· Output signal ambient temperature com-
pensated.
· Fast reaction time.
· Different optics and IR filters available.
· Digital serial interface for calibration and
adjustment purposes.
· Analog frontend/backend, digital signal
processing.
· E²PROM for configuration and data stor-
age.
· Configurable comparator with high/low
signal for remote temperature threshold
control.
· TO 39 6 pin housing.
APPLICATIONS
· Miniature remote non contact temperature
measurement (pyrometer).
· Temperature dependent switch for alarm or
thermostatic applications
· Residential, commercial, automotive, and in-
dustrial climate control.
· Household appliances featuring a remote tem-
perature control like microwave oven, toaster,
hair dryer.
· Temperature control in laser printers and copi-
ers.
· Automotive climate control.
FUNCTIONAL DIAGRAM
Serial Interface
(SCLK, SDAT)
TP
PTAT
Offset correction
+
V1
+
V2
-
Switch A
Signal-
Vref
processor
Control Unit
Switch B
Switch C
Comp 1
Comp 2
Switch D
V_Tobj
V_Tamb / V_Ref
TP: Thermopile
PTAT: Temperature Sensor
VTobj :
VTamb :
VRef :
Output voltage object temperature
Output voltage ambient temperature
1.225 V reference voltage
A2TPMI Datasheet Rev4
Page 1 of 21
Rev. Oct 2003