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InGaAs linear image sensor

G11508-512SA

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Near infrared sensors (0.9 to 1.67 μm)

The G11508 series is an InGaAs linear image sensor designed for near infrared multichannel spectrophotometry. These linear image sensors consist an InGaAs photodiode array and charge amplifi ers, offset compensation circuit, shift register, and timing generator formed on a CMOS chip. Charge amplifi ers are configured with CMOS transistor array and are connected to each pixel of the InGaAs photodiode array. Since the signal from each pixel is read in charge integration mode, high sensitivity and stable operation are attained in the near infrared region. These sensors feature higher data rates and better linearity characteristics at high gain than the previous products. The package is hermetically sealed providing excellent reliability. The signal processing circuit on the CMOS chip enables the selection of a conversion efficiency (CE) from the available two types using external voltage.


Features
- Low noise, low dark current
- Selectable from two conversion efficiency types
- Built-in saturation countermeasure circuit
- Built-in CDS circuit
- Built-in thermistor
- Easy operation (built-in timing generator)
- High resolution: 25 μm pitch

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Specifications

Image size 12.8 x 0.5 mm
Pixel size 25 x 500 μm
Pixel pitch 25 μm
Number of total pixels 512 pixels
Package Metal
Cooling One-stage TE-cooled
Line rate (max.) 9150 lines/s
Spectral response range 900 to 1670 nm
Dark current (max.) 5 pA
Measurement condition Typ. Ta=25 ℃, unless otherwise noted, Spectral Response Range: Tchip=-10 ℃
Line rate: When two video lines are used for readout, the line rate is equal to that for 256 channels.

Spectral response

k_g11508-256sa_sr_xx.jpg

Dimensional outline (unit: mm)

k_g11508-256sa_do_xx.jpg

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