InGaAs area image sensor
The G12460-0606S has a hybrid structure consisting of a CMOS readout circuit (ROIC: readout integrated circuit) and backilluminated InGaAs photodiodes. Each pixel is made up of an InGaAs photodiode and a ROIC electrically connected by an indium bump. A timing generator in the ROIC provides an analog video output and AD-TRIG output which are easily obtained by just supplying a master clock (MCLK) and master start pulse (MSP) from external digital inputs. The G12460-0606S has 64×64 pixels arrayed at a 50 μm pitch and their signals are read out from a single video line. Light incident on the InGaAs photodiodes is converted into electrical signals which are then input to the ROIC through indium bumps. Electrical signals in the ROIC are converted into voltage signals by charge amplifiers and then sequentially output from the video line by the shift register. The G12460-0606S is hermetically sealed in a TO-8 package together with a onestage thermoelectric cooler to deliver low-cost yet highly stable operation.
|Spectral response range||1120 to 1900 nm|
|Peak sensitivity wavelength (typ.)||1750 nm|
|Image size||3.2 × 3.2 mm|
|Pixel size||50 × 50 μm|
|Pixel pitch||50 μm|
|Number of total pixels||64 × 64 pixels|
|Frame rate (max.)||1025 frames/s|
|Dark current (typ.)||8 pA|
|Measurement condition||Ta=25 ℃, Td=0 ℃, Vdd=5 V, PD_bias=4.5 V|
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