Patent ID: 8779801
Filing Date: 2014-07-15
Classification: H03K

Abstract:
1. A switching circuit comprising: a first input stage having an input for receiving a first input signal, an output, and a power terminal for receiving an increasing analog current; a second input stage having an input for receiving a second input signal, an output, and a power terminal for receiving a decreasing analog current; an output node coupled to the outputs of the first input stage and the second input stage for providing a switched output signal; a differential stage having an input for receiving a linearly ramped input voltage traversing from a first voltage to a second voltage, a first current output, and a second current output; a ramped voltage output circuit for providing the linearly ramped input voltage to the input of the differential stage; a first current mirror having an input coupled to the first current output of the differential stage and an output coupled to the power terminal of the first input stage; and a second current mirror having an input coupled to the second current output of the differential stage and an output coupled to the power terminal of the second input stage.