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DR34

DR 34 Detector circuit overlay
DR 34 Detector circuit overlay
DR34 Thermopile Detector
DR34 Thermopile Detector

Thin Film Based Thermopile Detector

Features:
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.
Applications:
Gas analysis for automotive, environmental air quality including greenhouses, industrial and medical monitoring including infant incubators.
Benefit:
Low noise and dual channel in a TO-5 package with moderate output.
Options:
  1. See Standard Windows and Filters (PDF) for list of optical filter options.
  2. See Thermopile Configuration Table for more options.
Datasheet:
For more detailed information see the datasheet
DR34 (PDF)

DR 34 Thermopile Detector Technical Specifications

Specifications apply at 23°C with KBr Window and Argon encapsulating gas

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

10,088

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

  

General Specifications: 
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
Notes:      
(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.