| Title |
Amp-less Charge Pump with Under 0.4 % Current Mismatch and Wide Output Voltage Range for Low-Voltage Power Supply PLL |
| Authors |
김태현(Taehyun Kim) ; 안광명(Gwangmyeong An) ; 황찬빈(Chanbin Hwang) ; 김민균(Mingyun Kim) ; 송준영(Junyoung Song) |
| DOI |
https://doi.org/10.5573/ieie.2026.63.9.36 |
| Keywords |
Charge pump (CP); Phase-locked loop (PLL); Comparator; Current mismatch; Ripple |
| Abstract |
This paper presents an amplifier-less charge pump featuring low current mismatch and a wide output voltage range. The proposed CP (charge-pump) PLL (phase-locked loop) was implemented in a 14-nm FinFET process and generates an 8-GHz output. Simulation results demonstrate that the proposed CP achieves a current mismatch below 0.4% and an rms jitter of 10 fs, which is one-quarter that of a PLL employing a conventional CP. |