640×512 InGaAs array detector     


The 640 ×512 InGaAs array detector is mainly composed of low noise readout circuit (ROIC), P-I-N structure InGaAs photosensitive chip and primary thermoelectric cooler (TEC), and is packaged in metal form.The detector is available in two types: conventional type and open window type. This manual only describes the product of open window type B.



Product model


Name Model Price
640×512 InGaAs array detector   [PDF]  [RFQ]

PL-1700-IGLA-AR1515-640512
Stock NO.: E80040507
[Please inquire]


Parameter



Features

● Scale 640 × 512 yuan

● Working band 0.95~1.7 μm

● High detection rate

● Room temperature

Specifications

Names of Index

Typ

Response spectrum (μm)*1

 0.95 ±0.05~1.7 ±0.05

Pixel filling rate(%)

100

Peak quantum efficiency(%)

≥70@1.55μm

Peak detection rate*2(cm·Hz/w)

≥5 × 1012

Peak   sensitivity(A/W)

≥0.8

Effective pixel rate(%)*3

>99.5

Response heterogeneity(%)

≤5

Playback mode

IWR ITR ITR+CDS NDRO IMRO

Readout rate (MHz)

Range 2 to 22, typical 12

Number of readout channels

8optional

Full frame rate(Hz) *4

350

Gain gear

3

Conversion gain(μV/e-)

1 (LG) 25 (MG) 110 (HG)

Dynamic range(dB)

≥55 (MG)

*1  Focal plane temperature=25℃

*2  Focal plane temperature=20℃ ,Mid-range gain, integration time 8ms, signal amplitude close to half-well condition 

*3 The percentage of pixels for which the response signal deviates less than 50% from the mean for the near-half-well condition

*4  The number of readout channels =8, the readout mode is IWR, and the readout rate is 20MHz.


Quantum efficiency (typical value)

TC1.png


Schematic diagram of detector working principle and connection mode

TC2.png


Mechanical capacity

Name of index

TYP

Length x width x height (mm)

32 ×25.5 ×7.9

Weight(g)

~21

Focal plane scale

640 ×512

Pixel center distance(μm)

15

Pixel Size(μm)

15 × 15

Sensing Area(mm)

9.6 ×7.68


Environment and power consumption parameters are used

Name of index

Typ

Operation Temperature()

-20~+60

Storage Temperature ()

-40~+70

Typical power(W)*

<0.35

Temperature cycling, random vibration

Comply with the GJB 548B-2005 standard design

Dimensions and Pin definitions

Mechanical Specifications

The detector is In the form of metal packaging, filled with atmospheric pressure and high purity nitrogen gas, the metal shell is made of FeNiCoSi alloy, the surface is electroplated with Ni/Au layer, the window welding method is IN brazing, and the capping form is resistance welding.The overall dimensions of the detector are 32mm (L)×25.5mm (W)×7.9mm (H). There are 41 pins Φ0.45mm on the shell from the bottom, the use of bilateral double rows of "product" layout, single side adjacent two rows of pins spacing is 1.27mm, a single row of pin spacing is 1.6mm, used for focal plane power and command input, focal plane detection signal and temperature sensor electrical extraction; Two pins of Φ1.0mm on the side are used for the connection of the thermoelectric refrigerator. Four via holes of Φ1.8mm distributed on both sides of the tube shell are used for the fixation of the detector.

The appearance and size of the mechanical interface are shown below.

TC3.png


Optical configuation

The detector has a 640×512 element InGaAs focal plane, a pixel center distance of 15μm, a square shape, and a photosensitive size of 15μm× 15μm.The design distance between the detector and the upper surface of the package structure is 2.41 ±0.2mm, the design distance between the detector and the lower surface of the window is 1.41 ±0.2mm, and the design distance between the detector and the lower surface of the diaphragm is 0.71 ±0.2mm. The window material is sapphire, the thickness is 0.6 ±0.02mm, the window refractive index is 1.76, the surface is coated with AR film, and the transmittance in the response band is >. The window transmittance area is 13.5mm× 11.5mm, and the aperture transmittance size is 10.2mm× 8.3mm.The center of the sensitive surface is located at the center of the detector with a relative position offset ≤0.05mm and a relative rotation displacement ≤0.02mm.

TC4.jpg

Schematic of the detector pin

TC5.png

Description of the detector pin


Pin number

Name of pin

Input/output

Pin function

Reference value

1

NC

-

Empty pin, unattached


2

CLK

Input

Detector master clock

Digital   voltage
  High level 3.3V, low level 0V

3

ST

Output

The   frame output identifier

See Note 3 for details

4

ROW_ST

Output

The   line output identifier

See Note 3 for details

5

ERROR

Output

Serial   port command word input check bit

See Note 3 for details

6

SERIAL

Input

Serial   port command word input

Digital voltage high level 3.3V, low level 0V

7

RESET

Input

External   reset input (high level valid)

Digital voltage high level 3.3V, low level 0V

8

NC

-

Same as 1


9/10

TS

-

Temperature   sensor, which measures the electrical resistance value through two pins, to   feedback the operating temperature of the focal plane


11

NC

-

Same as 1


12

NC

-

No   pins, easy to identify the direction


13

NC

-

Same as 1


14

NC

-

Same as 1


15

GNDA

-

Analog   power ground, corresponding to VDDA


16

VDDA

Output

 

Analog   power supply

Simulation   3.6V, Driving current >90mA

17

VDDL

Input

VDCC

Simulation   3.6V, Driving current >90mA

18

VOUT1

Output

Eight-Channelfour   channelsThe first channel in a two-channel output mode


19

VOUT2

Output

The   first channel in a two-channel output modeThe second channel in a   two-channel output mode


20

VOUT3

Output

Eight-ChannelThe third channel in a four-channel output mode


21

VOUT4

Output

Eight-ChannelThe fourth channel in a four-channel output mode


22

VOUT5

Output

The   fifth channel in the eight-channel output mode


23

VOUT6

Output

The   sixth channel in the eight-channel output mode


24

VOUT7

Output

The   seventh channel in the eight-channel output mode


25

VOUT8

Output

The   eighth channel in the eight-channel output mode


26

SUBPV

Input

Detector common terminal

Simulation   2.3V,
  Driving current >5mA

27

NC

-


Must be suspended

28

VREF

-

reference voltage

See   Recommended peripheral circuit for details

29

GND

-

common ground point


30~34

NC

-

Same as 1


35

VD33

Input

Digital IO power supply

Simulation   3.3V, Driving current >15mA

36/37

NC

-


Must be suspended

38

GND

-

Same as 29


39

VD18

Input

Digital logic power supply

Simulation 1.8V, Driving current >30mA

40

VTEMP

Output

Circuit   integrated temperature sensor voltage output, voltage gain -6mV/K


41

INT

Input

Integral control input

Digital voltage High level 3.3V, low level 0V

42

NC

-

Same as 1


43

TEC-

-

Thermoelectric   refrigerator connection foot -


44

TEC+

 

-

The   thermoelectric refrigerator is connected to the foot +, the foot + is   connected to the high electrical potential for refrigeration, and the foot is   connected to the low potential for heating




Matters needing attention:

The DC input directly affects the overall noise of the detector, so the ripple noise of the DC input power supply is required as follows:

1)   Each power supply voltage ripple noise requirements:

a)   VDDA: < 1mV;

b)   VDDL: < 10mV;

c)   VD33:<5mV;

d)   VD18:<5mV;

2)   Signal output (VOUT1~VOUT8) load requirements: Cload<25pf; rload="">100kΩ;

3)   Logical output signal range: logical output signal is high and low level digital signal, wherein

a)   low level: 0~0.3V;

b)   high level: (VD33-0.3V)~VD33;

c)   Logic output load requirements: Cload< 15pF;

4)   The reference voltage is internally generated with a typical value of 2.24V.

Application

● Industrial testing

● machine vision

● spectral analysis

● Material sorting



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