CMOS 아날로그 집적회로를 위한 새로운 구조의 One port 저항 셀

One port resistor cell for CMOS analog integrated circuits

It is difficult to fabricate precise resistors for the analog integrated circuits using MOS technology. Until now polysilicon resistors were used at the analog integrated circuits, but some deviations of resistance and sensitive variation processes still cause their misactions. In order to improve these misactions, we suggest a CMOS resistor cell which provides precise resistance and excellant linearity. Also we designed the second order active low pass filter using the CMOS resistor cells and verified their superior performances compared to the actual resistors.