A two-channel thin-film thermopile that offers low noise in a TO-5 package. Each small active area is 2mm x 0.6mm. This is our lowest noise-voltage two-channel detector.
Security, intrusion detection and human presence monitoring, including identifying direction of travel. Other potential applications include non-contact temperature measurement.
Two-channel output and low noise with small active area size and no internal aperture.
DR26 Thermopile Detector
DR26 Thermopile circuit overlay
For more detailed information see the datasheet:
| Parameter | Min | Typical | Max | Symbol | Units | Comments |
|---|---|---|---|---|---|---|
| Active Area size | 2 x .6 | AA | mm | Hot junction size, per element. | ||
| Element Area | 1.2 | A | mm2 | |||
| Number of Junctions | 26 | Per element. | ||||
| Number of Channels | 2 | Per detector package. | ||||
| Output Voltage | 45 | 54 | 62 | Vs | μV | DC, H=330μW/cm2 (3) |
| Signal-to-Noise Ratio | 4,206 | 5,684 | 7,209 | SNR | √Hz | DC, SNR=Vs/Vn |
| Responsivity | 11.4 | 13.6 | 15.7 |  |
V/W | DC, =Vs/HA (2) |
| Resistance | 4.5 | 5.5 | 7.0 | 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 | 8.6 | 9.5 | 10.7 | Vn | nV/√Hz | Vn2=4kTR |
| Noise Equivalent Power | .55 | .71 | .94 | NEP | nW/√Hz | DC, NEP= VnHA/Vs (2) |
| Detectivity | 1.2 | 1.6 | 2.0 | 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 | Standard package hole size:Ø.080 | ||||
| Operating Temperature | -50 | 100 | Ta | °C |
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.