Low power, high resolution CMOS variable-delay element

doi:10.1016/j.aeue.2011.10.006

Low power, high resolution CMOS variable-delay element

2012-06-01

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DOI：10.1016/j.aeue.2011.10.006

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This letter proposes a novel CMOS variable-delay element (VDE). It employs a RC-based differentiator to control the pMOS transistor of a CMOS inverter, whose delay time becomes dependent on the time constant RC. By implementing the RC differentiator with transistor components, the delay can be controlled by variations of both R and C, for fine and coarse delay tuning, respectively. Simulated results show good delay linearity, high resolution and low power consumption for the proposed circuit. (C) 2011 Elsevier GmbH. All rights reserved.

Keyword:

CMOS variable delay element

CMOS inverter

Delay control

Low power, high resolution CMOS variable-delay element

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