G9204

G9201 to G9204 series InGaAs linear image sensors are specifically designed as detectors for monitoring WDM in optical communications. G9201 to G9204 series consist of an InGaAs photodiode array with each pixel connected to a charge amplifier array comprised of CMOS transistors,  a CDS circuit, an offset compensation circuit, a shift register and a timing generator. These sensors deliver high sensitivity and stable operation in  the near infrared spectral range. The package is hermetically sealed for high reliability and the window has an anti-reflective coating for efficient  light detection.

Signal processing circuits of G9201 to G9204 series on the CMOS chip allow selecting a feedback capacitance (Cf) of 10 pF or 0.5 pF by supplying an external voltage. The  image sensor operates over a wide dynamic range when Cf=10 pF and delivers high gain when Cf=0.5 pF.