A mismatch-insensitive high-accuracy high-speed continuous-time current comparator in low voltage CMOS

2019-11-082019-11-081997Río Fernández, R.d., Liñán Cembrano, G., Domínguez Castro, R. y Rodríguez Vázquez, Á.B. (1997). A mismatch-insensitive high-accuracy high-speed continuous-time current comparator in low voltage CMOS. En 2nd IEEE-CAS Region 8 Workshop on Analog and Mixed IC Design (111-116), Baveno, Italia: Institute of Electrical and Electronics Engineers.0-7803-4240-2https://hdl.handle.net/11441/90086This paper presents a CMOS current comparator which employs nonlinear feedback to obtain high-accuracy (down to 1.5 pA) and high-speed for low input currents (8 ns@50 nA). This structure is much faster for low currents (below 10 /spl mu/A) than other previous nonlinear feedback comparators. Particularly, when compared to the fastest current comparator reported up to now, the new one operates at more that 100 times faster for a 1 nA current, with smaller area occupation and similar power consumption. In addition, the new comparator is virtually insensitive to mismatch and capable of operating with supply voltages as low as 1 V.application/pdfengAttribution-NonCommercial-NoDerivatives 4.0 Internacionalhttp://creativecommons.org/licenses/by-nc-nd/4.0/A mismatch-insensitive high-accuracy high-speed continuous-time current comparator in low voltage CMOSinfo:eu-repo/semantics/conferenceObjectinfo:eu-repo/semantics/openAccess10.1109/AMICD.1997.6372025505710