Current-controlled CMOS (C3MOS) fully differential integrated delay cell with variable delay and high bandwidth. A novel implementation includes a wideband differential transistor pair and a cross-coupled differential transistor pair. The wideband differential transistor pair can be implemented with...http://www.google.com/patents/US7598788?utm_source=gb-gplus-sharePatent US7598788 - Current-controlled CMOS (C3MOS) fully differential integrated delay cell with variable delay and high bandwidth
