A two-channel or a one-channel compensated thin-film thermopile in a TO-5 package. Each active area is 3.16mm x 0.4mm and offers low noise output. Internal aperture minimizes channel-to-channel crosstalk and thus increasing sensitivity.
Gas analysis for automotive, environmental air quality including greenhouses, industrial and medical monitoring including infant incubators.
Low noise and dual channel in a TO-5 package with moderate output.
DR34 Compensated Detector circuit overlay
DR34 Thermopile Detector
For more detailed information see the datasheet:
| Parameter | Min | Typical | Max | Symbol | Units | Comments |
|---|---|---|---|---|---|---|
| Active Area size | 3.16 x .4 | AA | mm | Hot junction size, per element. | ||
| Element Area | 1.264 | A | mm2 | |||
| Number of Junctions | 40 | Per element. | ||||
| Number of Channels | 1 Compensated | Per detector package. | ||||
| Output Voltage | 90 | 115 | 130 | Vs | μV | DC, H=330μW/cm2 (3) |
| Signal-to-Noise Ratio | 6,429 | 8,582 | 16,049 | SNR | √Hz | DC, SNR=Vs/Vn |
| Responsivity | 21.6 | 27.6 | 31.2 |  |
V/W | DC, =Vs/HA (2) |
| Resistance | 4.0 | 8.0 | 12 | R | kΩ | Detector element |
| Temperature Coefficient of |
-.36 | %/°C | Best linear fit, 0° to 85°C (1) | |||
| Temperature Coefficient of R | -.2 | %/°C | Best fit, 0° to 85°C (1) | |||
| Noise Voltage | 8.1 | 11.4 | 14.0 | Vn | nV/√Hz | Vn2=4kTR |
| Noise Equivalent Power | .26 | .42 | .65 | NEP | nW/√Hz | DC, NEP= VnHA/Vs (2) |
| Detectivity | 1.7 | 2.7 | 4.3 | D* | 108√Hz/W | DC, D*=Vs/ VnH√A (2) |
| Time Constant | 38 | Τ | ms | Chopped, -3dB point (1) | ||
| Field of View | NA | FOV | Degrees | See Assembly Drawings for FOV Description. | ||
| Package Type | TO-5 with 5 Pins | Standard package hole size:Ø.437 | ||||
| Element Matching | 5 | 10 |
M |
% | M=|VA-VB|/VB (2) | |
| Element Separation | 1.8 | mm | Center to Center | |||
| Operating Temperature | -50 | 100 | Ta | °C |
Specifications apply at 23°C with KBr Window and Argon encapsulating gas.
Flat spectral response from 100nm to > 100µm. Linear signal output from 10-6 to 0.1W/cm2.
Maximum incident radiance 0.1W/cm2 , damage threshold ≥ .5W/cm2
(1) Parameter is not 100% tested. 90% of all units meet these specifications.
(2) A is detector area in cm2.
(3)Test Conditions: 500K Blackbody source; Detector active surface 10cm from 0.6513cm Diameter Blackbody Aperture.