US Patent 9208130 Phase interpolator

A phase interpolator is described. The phase interpolator may comprise a first plurality of digital-to-analog converters coupled to receive a first phase of a clock signal; a second plurality of digital-to-analog converters coupled to receive a second phase of the clock signal; and a third plurality of digital-to-analog converters coupled to both the first phase of the clock signal and the second phase of the clock; wherein each digital-to-analog converter is configurable to receive either the first phase of the clock signal or the second phase of the clock signal. A method of implementing a phase interpolator is also described.