This letter details a novel floating-bulk transistor technique for low-voltage design. The approach is derived from two previous wellknown techniques: bulk-driven and quasi floating-gate. The floating-bulk technique uses an input capacitive coupling through a floating bulk of a PMOS allowing modulation of the drain current. A fabricated commonsource amplifier was tested on CMOS 0.5 µm technology and the feasibility of the proposal was demonstrated.
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