Process parameters, particularly threshold voltage, will be chosennto optimise digital performance, and the performance of the op amps andnanalogue switches required to operate in the voltage domain will suffer.nSo, future analogue circuits for VLSI applications face both economicnand technical difficulties, and this paper offers a solution using a newnanalogue sampled-data technique, called switched currents, requiringnonly a baseline digital process and avoiding many of the anticipated lownvoltage problems by operating in the current domain
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