Patent ID: 7928784
Filing Date: 2011-04-19
Classification: H03K

Abstract:
1. An apparatus comprising: a current mirror; a reference current source that is coupled to the current mirror; a switching transistor having a first passive electrode, a second passive electrode, and a control electrode, wherein the first passive electrode is coupled to the reference current source; a resistor that is coupled to the second passive electrode of the switching transistor; a capacitor that is coupled to the control electrode of the switching transistor; and a current steering inverter that is coupled to the control electrode of the switching transistor and the reference current source, wherein the current steering inverter receives an enable signal so as to actuate and deactuate the switching transistor, and wherein the current steering inverter adjusts a current applied to the capacitor between one of a first current level for a predetermined propagation delay for activation of the current mirror and a second current level for a predetermined slew rate of the current mirror.