Electronic device
AssigneeCanon Kabushiki Kaisha
InventorKatsuhito Sakurai
Life of this patent
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Abstract
An electronic device according to one or more embodiments of the invention comprises a plurality of first output lines and a plurality of current to voltage convertors. Current signals from a plurality of signal sources are output to the first output lines. Each of the current to voltage convertors are electrically connected to a corresponding one of the first output lines. The current to voltage convertor includes a first amplification unit. An offset reduction unit in a subsequent stage of the current to voltage convertor is provided for each of the first output lines.
Claims20
An electronic device comprising:
- a plurality of first output lines for current signals from a plurality of signal sources being output to the first output lines;
- and
- a plurality of current to voltage convertors, each of the current to voltage convertors being electrically connected to a corresponding one of the first output lines,
- wherein the current to voltage convertor includes a first amplification unit, and
- wherein an offset reduction unit in a subsequent stage of the current to voltage convertor is provided for each of the first output lines.
An electronic device comprising:
- a plurality of first output lines for current signals from a plurality of signal sources being output to the first output lines;
- and
- a plurality of current to voltage convertors, each of the current to voltage convertors being electrically connected to a corresponding one of the first output lines,
- wherein the current to voltage convertor includes an first amplification unit, and
- a first storing unit and a second storing unit electrically connected to an output node of the current to voltage converter are provided for each of the first output lines.
An electronic device comprising:
- a plurality of first output lines for current signals from a plurality of signal sources being output to the first output lines;
- and
- a plurality of current to voltage convertors, each of the current to voltage convertors being electrically connected to a corresponding one of the first output lines,
- wherein the current to voltage convertor includes a first amplification unit,
- wherein a third capacitor, a fourth capacitor, a second amplification unit and a switch are provided for each of the first output lines,
- wherein the second amplification unit includes an operational amplifier having at least two input nodes,
- wherein one node of the third capacitor is electrically connected to an output node of the current to voltage convertor, and another node of the third capacitor is electrically connected to one of the input nodes of the operational amplifier of the second amplification unit,
- wherein one node of the fourth capacitor is electrically connected to the one of the input nodes of the operational amplifier of the second amplification unit, and another node of the fourth capacitor is electrically connected to an output node of the operational amplifier of the second amplification unit, and
- wherein the switch is provided in an electrical path between the one of the input nodes of the operational amplifier of the second amplification unit and the output node of the operational amplifier of the second amplification unit in parallel to the fourth capacitor.
Dependencies are inferred from the claim text.