Thermopile detector T11722-01 For CO2 concentration measurement, High sensitivity The T11722-01 is a dual-element type thermopile detector designed to detect CO2 concentration with high accuracy. It consists of a high sensitivity dual-element thermopile detector and two band-pass filters for sensing two wavelengths (reference: 3.9 μm, CO2: 4.3 μm) simultaneously. Features Applications 2 wavelengths detection (Reference: 3.9 μm, CO2: 4.3 μm) CO2 concentration measurement Metal package (TO-5) High sensitivity Absolute maximum ratings Parameter Symbol Value Unit Operating temperature Topr -30 to +85 °C Storage temperature Tstg -40 to +125 °C Note: Exceeding the absolute maximum ratings even momentarily may cause a drop in product quality. Always be sure to use the product within the absolute maximum ratings. Electrical and optical characterisitics (Ta=25 °C) Parameter Photosensitive area (per 1 element) Spectral response range Photosensitivity*1 Element resistance Noise voltage Noise equivalent power*1 Detectivity*1 Rise time Temperature coefficient of element resistance Symbol λ S Rd Vn NEP D* tr TCR Condition Absorption layer size Band-pass filter, center wavelength (FWHM) 1 Hz, 500 K Johnson noise 0 to 63% Min. Typ. Max. Unit - 1.2 × 1.2 - mm - For reference: 3.9 (0.09) For CO2: 4.3 (0.14) - μm 40 100 0.9 × 108 - 50 125 45 0.9 1.3 × 108 20 60 150 50 1.3 30 V/W kΩ nV/Hz1/2 nW/Hz1/2 cm∙Hz1/2/W ms - ±0.1 - %/°C *1: Without filter www.hamamatsu.com 1 Thermopile detector T11722-01 Spectral transmittance characteristics of window material (typical example) Field of view 100 90 X Transmittance (%) 80 X’ 70 Filter 1 Filter 2 Filter 1 98˚ 98˚ Filter 2 60 50 40 30 20 10 0 3.0 3.5 4.0 4.5 5.0 Wavelength (μm) KIRDB0508EA KIRDC0103EA Operating circuits Single power supply type +V 3 2 +V 8 + 1 - Vout 4 Thermopile R3 R1 R2 C1 R4 Gain=1 + R2/R1 fhigh=1/(2πC1R2) R3=R4 Since the thermopile output signal is very low in the order of microvolts, use an amplifier with a low offset voltage. (Example: LTC1050) KIRDC0104EA 2 Thermopile detector T11722-01 Dual power supply type +V 3 2 8 + 1 - Vout 4 Thermopile -V R2 R1 C1 Gain=1 + R2/R1 fhigh=1/(2πC1R2) KIRDC0105EA Dimensional outline (unit: mm) 8.3 ± 0.2 Thermopile 1 (1.2 × 1.2) 2.5 ± 0.1 Thermopile 2 (1.2 × 1.2) Filter 2 Pin Thermopile 2 Thermopile 1 Filter 1 13.2 ± 0.5 1.7 ± 0.1 3.4 ± 0.2 2.8 ± 0.2 9.15 ± 0.2 Window 2.5 ± 0.1 T2 0.45 ± 0.05 T1 Common Case ϕ5.08 ± 0.2 10.0 ± 0.2 0.8 ± 0.1 45° Filter1: For reference (3.9 μm) Filter2: For CO2 (4.3 μm) 0.8 ± 0.1 KIRDA0222EB 3 Thermopile detector T11722-01 Precautions The band-pass filters used in this product have a secondary transmission at wavelengths longer than 10 μm. If the secondary transmission affects measurements, install a sapphire glass, etc. in front of the light input window to block long wavelength light. Related information www.hamamatsu.com/sp/ssd/doc_en.html Precautions ∙ Notice ∙ Metal, Ceramic, Plastic package products/Precautions Information described in this material is current as of October, 2013. Product specifications are subject to change without prior notice due to improvements or other reasons. This document has been carefully prepared and the information contained is believed to be accurate. In rare cases, however, there may be inaccuracies such as text errors. Before using these products, always contact us for the delivery specification sheet to check the latest specifications. Type numbers of products listed in the delivery specification sheets or supplied as samples may have a suffix "(X)" which means preliminary specifications or a suffix "(Z)" which means developmental specifications. The product warranty is valid for one year after delivery and is limited to product repair or replacement for defects discovered and reported to us within that one year period. 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Copying or reprinting the contents described in this material in whole or in part is prohibited without our prior permission. www.hamamatsu.com HAMAMATSU PHOTONICS K.K., Solid State Division 1126-1 Ichino-cho, Higashi-ku, Hamamatsu City, 435-8558 Japan, Telephone: (81) 53-434-3311, Fax: (81) 53-434-5184 U.S.A.: Hamamatsu Corporation: 360 Foothill Road, P.O.Box 6910, Bridgewater, N.J. 08807-0910, U.S.A., Telephone: (1) 908-231-0960, Fax: (1) 908-231-1218 Germany: Hamamatsu Photonics Deutschland GmbH: Arzbergerstr. 10, D-82211 Herrsching am Ammersee, Germany, Telephone: (49) 8152-375-0, Fax: (49) 8152-265-8 France: Hamamatsu Photonics France S.A.R.L.: 19, Rue du Saule Trapu, Parc du Moulin de Massy, 91882 Massy Cedex, France, Telephone: 33-(1) 69 53 71 00, Fax: 33-(1) 69 53 71 10 United Kingdom: Hamamatsu Photonics UK Limited: 2 Howard Court, 10 Tewin Road, Welwyn Garden City, Hertfordshire AL7 1BW, United Kingdom, Telephone: (44) 1707-294888, Fax: (44) 1707-325777 North Europe: Hamamatsu Photonics Norden AB: Thorshamnsgatan 35 16440 Kista, Sweden, Telephone: (46) 8-509-031-00, Fax: (46) 8-509-031-01 Italy: Hamamatsu Photonics Italia S.R.L.: Strada della Moia, 1 int. 6, 20020 Arese, (Milano), Italy, Telephone: (39) 02-935-81-733, Fax: (39) 02-935-81-741 China: Hamamatsu Photonics (China) Co., Ltd.: 1201 Tower B, Jiaming Center, No.27 Dongsanhuan Beilu, Chaoyang District, Beijing 100020, China, Telephone: (86) 10-6586-6006, Fax: (86) 10-6586-2866 Cat. No. KIRD1120E02 Oct. 2013 DN 4