Patent ID: 8446201
Filing Date: 2013-05-21
Classification: H03F

Abstract:
1. A rail-to-rail phase splitter circuit comprising: a first supply voltage port as a first rail configured to receive a first potential; and a second supply voltage port as a second rail configured to receive a second potential that is lower than the received first potential; a phase splitter comprising a first branch and a second branch disposed between the first supply voltage port and the second supply voltage port, first through fourth phase splitter output ports, and a phase splitter input port configured to receive a first input signal having rail to rail voltage transitions about a known voltage level; a complementary differential amplifier configured to split the input signal into two complementary differential output signals, the complementary differential amplifier comprising a first differential amplifier output port, a second differential amplifier output port, and first through fourth differential amplifier input ports electrically coupled with the first through fourth phase splitter output ports; and a transimpedance amplifier comprising a first transimpedance amplifier input port and a second transimpedance amplifier input port electrically coupled with the complementary differential amplifier, and a first transimpedance amplifier output port and a second transimpedance amplifier output port configured to provide complementary output signals therefrom that transition from rail to rail between the first and second potentials, wherein the phase splitter, the complementary differential amplifier, and the transimpedance amplifier are disposed between the first supply voltage port and second supply voltage port and configured to receive the first and second potentials.