Description

Hamamatsu S11865-256 Photodiode array combined with signal processing IC

The S11865/S11866 series are Si photodiode arrays combined with a signal processing IC chip. X-ray tolerance has been improved compared to the previous products (S8865/S8866 series). The signal processing IC chip is formed by CMOS process and incorporates a timing generator, shift register, charge amplifier array, clamp circuit and hold circuit, making the external circuit configured by arranging multiple arrays in a row. For X-ray detection applications, types with phosphor sheet affixed on the photosensitive area are also available..

Features
-Data rate: 1 MHz max.
-Large element pitch: 0.2 mm pitch × 256 ch
-5 V power supply operation
-Simultaneous integration by using a charge amplifier array
-Sequential readout with a shift register
-Low dark current due to zero-bias photodiode operation
-Integrated clamp circuit allows low noise and wide dynamic range
-Integrated timing generator allows operation at two different pulse timings
-Types with phosphor sheet affixed on the photosensitive area are available for X-ray detection (S11865-256G)

Specifications