| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a multi-channel drive circuit capable of driving loads of all the channels constituting a load array under uniform conditions, even when variations occurs in circuit characteristics of each channel, including current source due to semiconductor manufacturing processes, and the like. <P>SOLUTION: The circuit includes; an inter-channel common connection line (5) for making conduction between respective current paths of the respective channels for connecting the respective current sources of the respective channels constituting a current source array (11), with respective input switches of the respective channels constituting an input switch array (13); and current-blocking means (12) for blocking output current of the current source of that channel of the plurality of channels in which the input switch is in an off state from flowing into the interchannel common connection line. <P>COPYRIGHT: (C)2009,JPO&INPIT |
