Abstract: A circuit and method comprising a charge pump having a first and a second differential element. The charge pump may be configured to generate a first and a second output signal in response to the first and second differential elements. The first differential element may comprise (i) a first unity gain buffer and (ii) a first and a second transistor pair configured to receive a first and second control signal. The second differential element may comprise (i) a second unity gain buffer and (ii) a third and a fourth transistor pair configured to receive the first and second control signals. The first and second unity gain buffers may stabilize the source nodes of each of the transistors pairs.

Abstract: An apparatus comprising a detector circuit and a first circuit. The detector circuit may be configured to (i) provide a bias voltage and (ii) generate a plurality of first signals and a plurality of second signals. The first circuit may be configured to (a) present (i) the bias voltage and (ii) a differential signal in response to the plurality of first signals and the plurality of second signals and (b) control (i) one or more of the plurality of first signals and (ii) one or more of the plurality of second signals.