Design, analysis and optimization of a dynamically reconfi gurable regenerative comparator for ultra-low power 6-bit TC-ADCs in 90nm CMOS technology

In this work the threshold configurable regenerative comparator on which TC-ADCs are based is optimized to further reduce the power consumption for use in battery-less biomedical sensor applications.\nMoreover, the effect of device mismatches on the offset, gain and linearity errors of the ADC is analyzed by means of Monte Carlo simulations.\nThis optimized comparator reduces the power consumption from 13uW to 3uW, while maintaining the same full scale range