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 US8638131(B2) 申请公布日期 2014.01.28
申请号 US201113032808 申请日期 2011.02.23
申请人 CHEN WILSON J.;TAN CHIEW-GUAN;QUALCOMM INCORPORATED 发明人 CHEN WILSON J.;TAN CHIEW-GUAN
分类号 H03K3/00 主分类号 H03K3/00
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