发明授权
- 专利标题: Low current CMOS translator circuit
- 专利标题(中): 低电流CMOS转换器电路
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申请号: US227589申请日: 1988-08-02
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公开(公告)号: US4982108A公开(公告)日: 1991-01-01
- 发明人: Lawrence E. Connell , Gregg R. Lichtscheidl
- 申请人: Lawrence E. Connell , Gregg R. Lichtscheidl
- 申请人地址: IL Schaumburg
- 专利权人: Motorola, Inc.
- 当前专利权人: Motorola, Inc.
- 当前专利权人地址: IL Schaumburg
- 主分类号: H03K12/00
- IPC分类号: H03K12/00 ; H03K19/0185
摘要:
A low current CMOS translator arrangement is disclosed that utilizes a low current inverting stage, having a peak current requirement, fed by a constant current source at a supply node that also has a capacitor coupled to it. This low current inverter is useful for a number of applications, including generating a sinusoidal signal when it is coupled to a crystal. When one or more are cascaded and coupled to a square wave input signal, the arrangement becomes a low current translator that level-shifts, or translates, the input signal having a first voltage range to a translated square wave output signal having a second voltage range. In another embodiment called a low current squaring translator, a squaring stage is coupled between the low current inverter and a low current translator that includes one or more inverting stages. This arrangement is able to achieve an output signal that maintains a precise duty cycle with low noise at a very low current.
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