High speed receivers circuits and methods

摘要

The present invention provides GPA embodiments. In some embodiments, a GPA stage with a negative capacitance unit is provided.

主权项

1. An apparatus comprising:
a differential amplifier having a first transistor with a gate terminal to receive a first input signal, and a second transistor with a gate terminal to receive a second input signal; an offset cancellation circuit coupled to the differential amplifier; and a negative impedance circuit having a third transistor with a gate terminal coupled to a drain terminal of the first transistor, and a fourth transistor with a gate terminal coupled to the drain terminal of the second transistor.