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    Body-bootstrapped-buffer circuit for CMOS static power reduction

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    In this paper, we present a new CMOS circuit design for increasing the threshold voltages (VT) of MOSFETS to reduce power consumption. Using a single voltage source VDD, the proposed circuit generates both the high positive and negative voltages, which are connected to the body nodes of MOSFETs to increase the reverse-bias voltage between the source and body in order to raise VT. Consequentially, static power consumption is reduced. The circuit is integrated into a 256-bit Ripple Carry Adder and a 32-bit Braun multiplier. Simulation results based on Chartered Semiconductor Manufacturing Private Limited’s (CHRT) 0.25-μm, 0.18-μm and Berkeley Predictive Technology Model’s (BPTM) 90-nm processes showed good trade-offs between power savings and delay.Published versio
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