A 56GS/S 6b DAC in 65nm CMOS with 256×6b memory. - Yuriy M. Greshishchev; Daniel Pollex; Shing-Chi Wang; Marinette Besson; Philip Flemeke; Stefan Szilagyi; Jorge Aguirre; Chris Falt; Naim Ben-Hamida; Robert Gibbins; Peter Schvan (ISSCC, 2011)