Charge-pump glitch filter

摘要: Abstract of the Disclosure A circuit including a conventional digital-to-analog converter (DAC) and charge pump for producing an analog representation input waveform defined by digital bit stream, representa-tion being relatively free spurious aberrations usually present in output DAC. The associated integrator are used to produce first approximation DAC detuned slew-rate filter maintain long-term conformance with more accurate second approxima-tion. Spurious integrated over several steps thereby minimizing their adverse impact on true approximation.