发明名称 |
DYNAMIC FEEDBACK-CONTROLLED OUTPUT DRIVER WITH MINIMUM SLEW RATE VARIATION FROM PROCESS, TEMPERATURE AND SUPPLY |
摘要 |
In examples, apparatus and methods are provided that mitigate buffer slew rate variations due to variations in output capacitive loading, a fabrication process, a voltage, and/or a temperature (PVT). An exemplary embodiment includes an inverting buffer having an input and an output, as well as an active resistance series-coupled with a capacitor between the input and the output. The resistance of the active resistance varies based on a variation in a fabrication process, a voltage, and/or temperature. The active resistance can be a passgate. In another example, a CMOS inverter's output is coupled to the input of the inverting buffer, and two series-coupled inverting buffers are coupled between the input of the CMOS inverter and the output of the inverting buffer. |
申请公布号 |
WO2012116167(A2) |
申请公布日期 |
2012.08.30 |
申请号 |
WO2012US26303 |
申请日期 |
2012.02.23 |
申请人 |
QUALCOMM INCORPORATED;CHEN, WILSON J.;TAN, CHIEW-GUAN |
发明人 |
CHEN, WILSON J.;TAN, CHIEW-GUAN |
分类号 |
H03K17/16;H03K19/003;H03K19/0185 |
主分类号 |
H03K17/16 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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