A zero detect circuit. The zero detect circuit includes a data-driven intermediate precharge device coupled to each of a plurality of data inputs to precharge an internal node in response to a data signal received via the corresponding data input. An output responsive to the data signals and to a first...http://www.google.de/patents/US6593778?utm_source=gb-gplus-sharePatent US6593778 - Zero detect circuit and method for high frequency integrated circuits
