Patent ID: 7268815

Claim:
An amplifying circuit, comprising: an amplifying element with at least an input terminal and an output terminal; a signal input node, the signal levels of which at least two moments in time are to be amplified by the amplifying element; at least two connecting lines between the signal input node and the amplifying element, for transferring a signal from the signal input node to the input terminal of the amplifying element; a memory element on at least one of the connecting lines, for storing a signal level of the signal input node at a moment in time; an input switching element disposed one each connecting line, between the memory element and the input terminal of the amplifying element if a memory element is provided on the connecting line, for consecutively connecting signal levels of the signal input node at different moments in time to the same amplifying element; a first output switching element coupled to the output terminal of the amplifying element; a second output switching element coupled to the output terminal of the amplifying element without connection through the first output switching element; a first readout bus coupled to the first output switching element; a second readout bus coupled to the second output switching element; and an output amplifier coupled to the first and second readout buses.