Photodiode array with amplifier


Photodiode array combined with signal processing IC for X-ray detection

This is a photodiode array with an amplifier and a phosphor sheet attached to the photosensitive area for X-ray detection. X-ray tolerance has been improved compared to the previous products (S8865/S8866 series). The signal processing circuit 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. As the dedicated driver circuit, the C9118 series (sold separately) is provided.

-Data rate: 1 MHz max.
-Large element pitch: 0.4 mm pitch × 128 ch
-5 V power supply operation
-Simultaneous integration by using a charge amplifier array
-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
-Detectable energy range: 30 k to 100 keV

Image size 51.2 x 0.6 mm
Number of effective pixels 128 pixels
Pixel size 0.3 x 0.6 mm
Pixel pitch 0.4 mm
Supply voltage 5 V
Scintillator Phosphor sheet
Peak sensitivity wavelength 720 nm
Line rate max. 7568 lines/s
Charge amp feedback capacitance 0.5 pF
Note for X-ray
Measurement condition Typ. Ta=25 ℃, unless otherwise noted, peak sensitivity wavelength: without phosphor sheet

Dimensional outline (unit: mm)

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