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SLA32

SLA32 Array circuit overlay
SLA32 Array circuit overlay
SLA32 Thermopile Array
SLA32 Thermopile Array

Array Based Thermopile Detector

Features:
A 2 x 16 staggered element silicon-based thermopile array. Each active area is 0.05mm x 0.65mm with a time constant of 7ms and a very low Temperature Coefficient of Responsivity of -0.01%/°C. It is packaged in a 38-pin DIP.
Applications:
Spectral analysis and line temperature measurements.
Benefit:
A proven design with no readout electronics.
Options:
  1. See Standard Windows and Filters (PDF) for list of optical filter options.
  2. Internal 30kΩ 5% NTC chip thermistor provides ambient package temperature measurement. See DC-4005 section of Thermistor Options (PDF).
Datasheet:
For more detailed information see the datasheet
SLA32 (PDF)

Export License Required

Not Currently RoHS Compliant

SLA32 Thermopile Array Technical Specifications

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

Parameter
Min
Typical
Max
Symbol
Units
Comments

Active Area size

0.5 x .65

AA

mm

Hot junction size, per element.

Element Area

.0325

A

mm2

  

Number of Junctions

74

 

 

Per element.

Number of Channels

2 x 16 staggered

 

 

Per detector package.

Output Voltage

10.0

14.8

20.0

Vs

μV

DC,  H=330μW/cm2 (3)

Signal-to-Noise Ratio

250

423

741

SNR

√Hz

DC, SNR=Vs/Vn

Responsivity

93.2

138.0

186.5

V/W

DC, =Vs/HA  (2)

Resistance

45

76

100

R

kΩ

Detector element

Temperature Coefficient of

 

-.01

 

 

%/°C

Best linear fit, 0° to 85°C (1)

Temperature Coefficient of  R

 

-.2

 

 

%/°C

Best fit, 0° to 85°C (1)

Noise Voltage

27

35

40

Vn

nV/√Hz

Vn2=4kTR

Noise Equivalent Power

.15

.26

.43

NEP

nW/√Hz

DC,  NEP= VnHA/Vs (2)

Detectivity

4.2

7.1

12.0

D*

108√Hz/W

DC,  D*=Vs/ VnH√A  (2)

Time Constant

 

7

 

Τ

ms

Chopped, -3dB point (1)

Field of View

N/A

FOV

Degrees

See Assembly Drawings for FOV Description.

Package Type

.97" x 1.27"

   

Standard package hole size:Ø.437

Element Matching

 

5

10

M

%

M=|VA-VB|/VB (2)

Element Separation

 

.61

 

 

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.