QUALCOMM Incorporated
Dynamic cross-coupled regeneration for high-speed sense amplifier

Abstract:

A regeneration circuit includes a first inverting circuit having an input and an output, a second inverting circuit having an input and an output, a first transistor coupled to the input of the second inverting circuit, wherein a gate of the first transistor is configured to receive a first input signal, and a second transistor coupled to the input of the first inverting circuit, wherein a gate of the second transistor is configured to receive a second input signal. The regeneration circuit also includes a first switch coupled between the first transistor and the output of the first inverting circuit, wherein a control input of the first switch is configured to receive a timing signal, and a second switch coupled between the second transistor and the output of the second inverting circuit, wherein a control input of the second switch is configured to receive the timing signal.