DIGITAL DATA HANDLING IN A CIRCUIT POWERED IN A HIGH VOLTAGE DOMAIN AND FORMED FROM DEVICES DESIGNED FOR OPERATION IN A LOWER VOLTAGE DOMAIN

摘要

Digital signal processing with a plurality of devices designed to operate in a high voltage region having a high voltage input that receives a high voltage level and a low voltage input that receives a low voltage level and designed to operate optimally in a native voltage region of a voltage lower than the high voltage region. Circuits and methods are provided. The circuit has an additional input that receives the native high voltage level. A first set arranged to receive an intermediate reference low voltage level as a low voltage level signal and receive the high voltage level as a high voltage level signal and a second set arranged to receive the native high voltage level as a high voltage level signal and receive a low voltage level as a low voltage level signal. At least some of the plurality of elements are arranged in two sets, each having at least one element, the intermediate reference low voltage level including a voltage level generated by subtracting the native high voltage level from the high voltage level, the first and second The elements of the set operate at or near the optimum operating voltage difference.