LOW-VOLTAGE, HIGH-SPEED, CURRENT-MODE LATCH WITH INDUCTOR TAIL AND COMMON-MODE FEEDBACK FOR AMPLITUDE AND CURRENT CONTROL

摘要

Described herein is a low-voltage circuit with an inductor tail and a common mode feedback loop for amplitude and current control. A first transistor pair can receive clock inputs, and a second transistor pair can receive data inputs and output the data to a logic gate. A tail inductor can be coupled to the first transistor pair to suppress high frequency common mode bounce induced by clock transitions in independent common emitter branches. A common mode feedback loop can be provided to maintain a constant average current. The common mode feedback loop and the tail inductor can together function in the same way as a tail current source at low frequencies and high frequencies respectively.