Daisy Chain for Power Reduction in Inductive-Coupling CMOS Link

Abstract

This paper discusses a daisy chain of current-drive transmitters in inductive-coupling CMOS links. Current is reused by multiple transmitters. 8 transceivers are arranged with a pitch of 20mum in 0.18mum CMOS. Transmit power is saved by 35% without sacrificing data rate (1Gb/s/ch) and BER (<10 <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">-12</sup> ) by having 4 transmitters daisy chained