The existing offset cancellation methods are based on digital-to-converters (DAC) and the calibration paths. During thermal drift the parameters of transistors in calibration pa¬t¬h change, which increase the offset of the system. The proposed offset cancellation meth¬od includes current DAC which is directly connected to the output of the system. The absence of the calibration path makes the circuit more stable during temperature drifts without voltage-current-voltage conversion. The offset variation of the circuit during thermal drift is reduced 19 times (1.42 mV). The circuit occupies 43.2 % less area as in the current DAC, only transistors have been used instead of the resistor-transistor structure of voltage DAC. Power consumption increases 7 % as the branch of the current DAC is always on.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.