InGaAs linear image sensor


Image sensor for DWDM wavelength monitor

The G9203-256DA is an InGaAs linear image sensor designed for WDM monitor detectors in optical communications. This linear image sensor contains a CMOS charge amplifier array, a CDS circuit, an offset compensation circuit, a shift register and a timing generator, along with an InGaAs photodiode array, and deliver high sensitivity and stable operation in the near infrared range. The package is hermetically sealed for high reliability and the light input window has an anti-reflective coating to improve the light detection efficiency. The signal processing circuit on the CMOS chip allows selecting two conversion efficiencies (CE) by external voltage. A wide dynamic range can be obtained when the image sensor is operated at CE=16 nV/e-, while a high gain can be obtained at CE=320 nV/e-.

- Wide dynamic range
- Low noise and low dark current
- Two selectable conversion efficiencies
- Anti-saturation circuit
- CDS circuit
- Offset compensation circuit
- Simple operation (by built-in timing generator)
- Low crosstalk
- 256 ch: 1 video line

Image size 12.8 x 0.5 mm
Pixel size 50 x 500 μm
Pixel pitch 50 μm
Number of total pixels 256 pixels
Package Ceramic
Cooling Non-cooled
Line rate (max.) 1910 lines/s
Spectral response range 900 to 1700 nm
Dark current (max.) 20 pA
Measurement condition Typ. Ta=25 ℃, unless otherwise noted

Spectral response

Dimensional outline (unit: mm)

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