Image sensor chip and image sensor
AssigneeRohm Co., Ltd.
InventorHideki Sawada
Life of this patent
Estimating the term…
Abstract
An image sensor chip (24) has a plurality of phototransistors (PHT) for converting light reflected by a scanned object into analog image signals, a shift register (SR) and first field effect transistors (FET1) for taking the image signals sequentially out of respective output terminals of the plurality of the phototransistors (PHT), a first pad (1) for output of the image signals taken out serially by the shift register (SR) and the first field effect transistors (FET1), an operational amplifier (OP) capable of amplifying the image signals from the plurality of phototransistors (PHT), a second pad (2) connected to an input terminal of the operating amplifier (OP), and a third pad (3) connected to an output terminal of the operating amplifier (OP).
Claims6
An image sensor chip comprising:
- a plurality of photoelectric elements for converting light reflected by a scanned object into analog image signals;
- a selecting circuit for sequential takeout of the serial image signals from respective output terminals of the photoelectric elements;
- a first pad for output of the image signals taken out serially by the selecting circuit;
- an amplifying circuit capable of amplifying the image signals from the plurality of photoelectric elements;
- a second pad connected to an input terminal of the amplifying circuit, and
- a third pad connected to an output terminal of the amplifying circuit.
Dependencies are inferred from the claim text.