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PHOTODIODE
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Photodiode array with amplifier
S6493/S6494 series
Photodiode arrays combined with a signal processing circuit chip
S6493 and S6494 series are Si photodiode arrays efficiently combined with a signal processing circuit. The signal processing circuit is formed on a single chip by the CMOS process, and includes a shift register, clamp circuit, hold circuit and charge amplifier array, thus allowing a simplified external circuit configuration. The photocurrent from the photodiode array is fed to the charge amplifier connected to each element and is converted into a voltage. The signal voltage is then sent to the clamp circuit and hold circuit, and is finally read out from the shift register in turn as a sequential video signal.