PY-ITV-DUALTO39(3+1) (REV. 8.1) Thin Film Pyroelectric Dual Channel Sensor Introduction Pyreos thin film pyroelectric IR sensors for gas detection and concentration measurement offer exceptionally high responsivity, low microphonics and class leading thermal and electrical stability. This high performance current mode sensor achieves a signal to noise of ~10,000 and offers a fast, stable response over a wide operating frequency range. The sensor elements are built into a low noise circuit that has an internal CMOS op amp, with a 10 G feedback resistor outputting a voltage signal centred around half the supply rail. Sensor Characteristics Electrical Characteristics Filter aperture 2.6 mm square Max. Voltage 8.0 V Element size 1000 m x 1000 m Min. Voltage 2.7 V Package TO39 Output voltage normalised around mid-rail 1 Responsivity 150,000 V/W Microphonics S ~2 V/ g at 10Hz vib 1 8 D* 3.5 x 10 cmHz/ W Time Constant ~12 ms 1 Noise 70 VHz Operating Temperature -40 to +85 C Storage Temperature -40 to +110 C Filters SeeFilters Availabl 1 10 Hz, 500 K, room temperature, without window and optics Frequency Characteristics Please note: the information contained in this document is subject to change without further notification. Pyreos reserves the right to alter the performance and any resulting specification. Pyreos may choose not to supply any engineering sample devices as a commercial product. No responsibility is accepted for any consequential loss incurred. Pyreos Ltd, SMC, Alexander Crum Brown Road, Edinburgh EH9 3FF, UK. Tel: +441316507009, www.pyreos.com 1 PY-ITV-DUALTO39(3+1) (REV. 8.1) Package Information Filter window size Recommended Circuit Diagram Filters Available Please note: the information contained in this document is subject to change without further notification. Pyreos reserves the right to alter the performance and any resulting specification. Pyreos may choose not to supply any engineering sample devices as a commercial product. No responsibility is accepted for any consequential loss incurred. Pyreos Ltd, SMC, Alexander Crum Brown Road, Edinburgh EH9 3FF, UK. Tel: +441316507009, www.pyreos.com 2 Package dimensions Top View Internal Schematic Bottom View