Abstract
In this paper, a high-voltage-tolerant analog driver is presented, implemented with a standard <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">${0.18\ \mu} \mathbf{m}$</tex> CMOS technology. The circuit is based on a class-AB operational amplifier, provided with cascode configurations and MOSFET-based clamps to ensure device protection against gate oxide breakdown. Extensive tests performed on a test chip demonstrated the capability of the proposed amplifier to relia-bly operate with a supply voltage as high as 8 V (more than two times higher than the nominal supply voltage of the process), achieving a rail-to-rail output swing.
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