A 1:2 demultiplexer is presented which operates at up to 60 Gbit/s. Th
is data rate is a record value for all ICs in any technology and has s
o far only been achieved by a time-division multiplexer recently prese
nted by the authors [1]. The IC, which was fabricated in an SiGe bipol
ar technology and mounted on a simple measuring socket, is also well s
uited for retiming data screams, e.g. in the receiver of future fibre
optic transmission systems.