SWIR-2048×1 InGaAs Linear Detector     


The 2048 × 1 element InGaAs line detector is mainly composed of a low-noise readout circuit (ROIC), a P-I-N structure InGaAs photosensitive chip and a first-level thermoelectric cooler (TEC), and adopts a metal package. This user manual only describes the C type of this detector.



Product model


Name Model Price
SWIR-2048×1 InGaAs Linear Detector   [PDF]  [RFQ]

PL-1700-IGLA-AR12.512.5-24081
(Stock NO. Not entered)
[Please inquire]


Parameter



Features

● Two gear gains

● High line frequency

● High sensitivity

● Working at room temperature

Specifications

Optical and electrical performance

Index name

Typical Value

Response spectrum range(μm)*1

0.95 ±0.05~1.7 ±0.05

Pixel filling rate(%)

100

Peak quantum efficiency(%)

≥65

Peak detection rate (cm∙Hz/w)

≥1×1012

Peak sensitivity(A/W)

≥0.8

Effective pixel rate(%)*2

≥99

Response non-uniformity(%)

<3

Readout method

IWR   ITR

Readout rate(MHz)

1~11

Maximum frame rate(fps)

40k

Gain gear

4

Saturation voltage(V)

2.0

Integrating capacitance(fF)

Gain gear110

Gain gear3100

Gain gear2:20

Gain gear4:500

Notice:

* 1 Focal plane temperature = 25℃

*2 Near the half-well, the deviation of the pixel response signal from the average value is less than the percentage of pixels within a certain range


Response spectrum(TYP)

t3.png


Schematic diagram of detector working principle and connection mode

t4.png

Mechanical capacity

Index name

Typical Value

Length × Width × Heigh(mm)

51.3 ×28.2 ×9.8

Weight(g)

~38

focal plane scale

2048 × 1

Pixel center distance(μm)

12.5

Pixel size(μm)

12.5 × 12.5

Active area(mm)

12.8×0.025


Dimensions and Pin definitions

Mechanical Specifications

This detector adopts a metal package and is filled with high-purity nitrogen at normal pressure. The metal shell is made of FeNiCoSi alloy, and the surface is electroplated with Ni layer. The window welding method is In system brazing, and the cover type is resistance welding. The overall dimensions of the detector are 51.3mm (L) × 28.2mm (W) × 9.8mm (H). There are 38 pins on the shell leading from the bottom, of which 36 Φ0.45mm pins are arranged in a bilateral "one" shape with a pin spacing of 2.00mm. They are used for the input of focal plane power and instructions, focal plane detection signals and temperature sensors. Electrical lead-out; 2 Φ1.00mm wires are used for the connection of thermoelectric coolers. Four Φ2.5mm through holes are distributed on both sides of the tube shell for fixing the detector. The pin near the missing corner is No. 1.

The appearance and dimensions of the mechanical interface are shown in the figure below


t2.png

Unit mm

Detector pin diagram

t5.jpg

Detector pin description

Pin No.

Lead#

Pin function

Reference value

1

VDDA

Analog power supply

analog voltage 3.3V

2

SH3



3

SH2

Sampling   control signal, setting pixel integration time, changing readout method,   specific methods can be found in the timing section

Digital voltage

High 3.3V/Low 0V

4

SH1



5

RESET

Reset   the signal, control the length of the acquisition cycle of the circuit, and   refer to the timing section for the control method

Digital voltage

High 3.3V/Low 0V

6

VOUT5S



7

VOUT5R



8

VOUT6S



9

VOUT6R

R   is the reference signal, S is the output signal


10

VOUT7S

Subtract   the output signal from the reference signal of the same channel to obtain the   actual detector response signal value


11

VOUT7R



12

VOUT8S



13

VOUT8R



14

VBOUT

Buffer   bias, providing bias voltage for circuit buffers

analog voltage 2.4V

15

VBOP

Amplifier   bias, providing bias voltage for signal amplifiers

analog voltage 2.4V

16

VREF

Reference   voltage, providing a reference value for the output signal

analog voltage 2.4V

17/18

TS

temperature   sensor


19

GND

GND


20

VNDET

Chip   public N

analog voltage 2.4V

 21

 VBUF

Buffer   bias, providing bias voltage to the overall buffer of the circuit

analog voltage 2.4V

22

VOUT4R



23

VOUT4S



24

VOUT3R

Same   as 6~ 13


25

VOUT3S



26

VOUT2R



27

CASE



28

VOUT2S



29

VOUT1R

Same   as 6~ 13


30

VOUT1S



 

31

 

DSELUNIT

Trigger   the pulse, and the circuit begins to collect signals

Digital voltage

High 3.3V/Low 0V

 

32

 

DSELBUF

trigger   pulse

Digital voltage

High 3.3V/Low 0V

 

33

 

CLK

Clock,  providing a time reference for circuit driven timing

Digital voltage

High 3.3V/Low 0V

 

34

 

SELCAP0

Detector gain selection, controlling the output signal size of the detector, specific   methods can be found in the timing section

Digital voltage

High 3.3V/Low 0V

35

SELCAP1

Detector gain selection, controlling the output signal size of the detector, specific   methods can be found in the timing section

Digital voltage

36

VDDD

Digital circuit power supply, providing voltage to the digital circuit inside the   detector

analog voltage 3.3V

37

TEC  (-)

The input voltage of the thermoelectric cooler is cooling when the TEC (+) pin is   connected to a high level, and heating when connected to a low level


38

TEC (+)





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