发明名称 Output buffer with slew rate control utilizing an inverse process dependent current reference
摘要 An output driver circuit (807) that provides more constant slew rates in the presence of process, voltage, or temperature variations that affect performance. An open ended (no feedback) solution is utilized that provides more constant slew rates in spite of PVT variations. A first performance dependent current (203) and a reference current (201) are generated and a third current is generated (205) that is inversely related to performance utilizing the reference current and the performance dependent current. The third current (860, 862) is supplied to a gate of a first transistor circuit (817, 811) forming a portion of the output diver to thereby control the slew rate.
申请公布号 GB2438104(A) 申请公布日期 2007.11.14
申请号 GB20070013747 申请日期 2007.07.16
申请人 ADVANCED MICRO DEVICES, INC 发明人 RANDALL PAUL BIESTERFELDT;BRYAN TIMOTHY HEENAN
分类号 H03K19/003;H03K19/0185 主分类号 H03K19/003
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