| 摘要 |
The present invention relates to a Hall electromotive force signal detection circuit suitable for a continuous-time-signal processing circuit. A third switching circuit (14) selects a terminal position to apply drive current to from among four terminals of a third Hall element and switches between a first terminal, second terminal, fourth terminal, and third terminal, in that order. A fourth switching circuit (16) selects, as the terminal position to apply drive current to from among four terminals of a fourth Hall element (15), a terminal position different from that of the third switching circuit (14), switching consecutively between first to fourth terminals of the fourth Hall element (15) that oppose the terminal position of the third Hall element (13) to which drive current is applied. A chopper clock generation circuit (11) provides a chopper clock signal having four different phases to the third switching circuit (14) and also provides the chopper clock signal having four phases to the fourth switching circuit (16). |
