发明申请
- 专利标题: Differential switching circuit and digital-to-analog converter
- 专利标题(中): 差分开关电路和数模转换器
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申请号: US11415465申请日: 2006-05-01
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公开(公告)号: US20060192590A1公开(公告)日: 2006-08-31
- 发明人: Hyung-Woan Koo
- 申请人: Hyung-Woan Koo
- 专利权人: Samsung Electronics, Co., Ltd.
- 当前专利权人: Samsung Electronics, Co., Ltd.
- 优先权: KR03-89670 20031210
- 主分类号: H03K19/094
- IPC分类号: H03K19/094
摘要:
A differential switching circuit has a first transistor connected between a first output node and a common node and a second transistor connected between a second output node and the common node. A switching driver generates first and second driving signals in response to an input data signal so as to complementarily drive the first and second transistors. A voltage level of at least one of the first and second driving signals is maintained so as to cause at least one of the first and second transistors to operate in a saturation region regardless of a voltage variation of at least one of the first or second output nodes when the at least one of the first and second transistors is turned on. Output impedance of the device is enhanced because the first and second transistors operate in the saturation region.