| 摘要 |
There is provided a DC offset cancellation circuit including: a capacitor circuit unit including at least one capacitor connected between an input terminal and an input of an amplifier; a MOSFET circuit unit including a plurality of MOSFETs connected in series between a first connection node connected to a predetermined one of both terminals of the capacitor circuit unit and a ground and operating in a linear region; and a switching circuit unit including a plurality of switch elements for selecting several MOSFETs previously selected from among the plurality of MOSFETs of the MOSFET circuit unit, respectively. |
