Compact Tunable Current-Mode Analog Circuits Using DGMOSFETs

Double-gate (DG) MOSFET has vast potential in analog circuit applications as a four-terminal device, where the top-gate response may be conveniently tuned via bottom gate bias (Reddy et al., 2005) and (Mathew et al., 2004). This has a number of important implications for circuit design: i) increased functionality out of a given set of devices; ii) reduction of device layout area and parasitics; and iii) higher-speed operation and low-power consumption with respect to equivalent conventional circuits. Despite such advantages, however, analog applications of DGMOSFETs have not received the due attention compared to digital reconfigurable systems (Kaya et al., 2006) and (Beckett, 2003). In the present work we address this issue and show how compact low-power analog circuits may be built using DG-MOSFETs together with current-mode design techniques