Integrated circuit device and imaging apparatus using integrated circuit device

An imaging apparatus comprising:

• a detector including a plurality of pixels each including a conversion element for converting radiation or light into an electric signal, and a plurality of signal lines for transmitting in parallel the electrical signals outputted from the pixels;
• and
• an integrated circuit device into which are input the electrical signals transmitted in parallel, wherein the integrated circuit device comprises:
• a plurality of signal processing circuits classified into a plurality of groups corresponding to the plurality of signal lines, the plurality of signal processing circuits including a plurality of amplifier circuits for amplifying the electrical signal inputted and having a plurality of bias input terminals, and a plurality of bias circuits for supplying an operation bias to the plurality of amplifier circuits and having a plurality of input terminals connected electrically to a bias source and a plurality of output terminals connected electrically to the plurality of bias input terminals, each of the plurality of signal processing circuits including one of the plurality of amplifier circuits and one of the plurality of bias circuits;
• and
• a plurality of connection wirings arranged for each of the groups separately,
• wherein one of the plurality of connection wirings is commonly connected to a plurality of input terminals of a plurality of bias circuits in one of the plurality of groups, and another of the plurality of connection wirings is commonly connected to a plurality of input terminals of a plurality of bias circuits in another of the plurality of groups.

A radiation imaging system comprising:

• an imaging apparatus;
• and
• an output signal processing unit for processing a signal outputted from the imaging apparatus, wherein the image apparatus comprises:
• a detector including a plurality of pixels each including a conversion element for converting radiation or light into an electric signal, and a plurality of signal lines for transmitting in parallel the electrical signals outputted from the pixels;
• and
• an integrated circuit device into which are input the electrical signals transmitted in parallel,
• wherein the integrated circuit device comprises:
• a plurality of signal processing circuits classified into a plurality of groups corresponding to the plurality of signal lines, the plurality of signal processing circuits including a plurality of amplifier circuits for amplifying the electrical signal inputted and having a plurality of bias input terminals, and a plurality of bias circuits for supplying an operation bias to the plurality of amplifier circuits and having a plurality of input terminals connected electrically to a bias source and a plurality of output terminals connected electrically to the plurality of bias input terminals, each of the plurality of signal processing circuits including one of the plurality of amplifier circuits and one of the plurality of bias circuits;
• and
• a plurality of connection wirings arranged for each of the groups separately,
• wherein one of the plurality of connection wirings is commonly connected to a plurality of input terminals of a plurality of bias circuits in one of the plurality of groups, and another of the plurality of connection wirings is commonly connected to a plurality of input terminals of a plurality of bias circuits in another of the plurality of groups.