상세정보
학술대회
Loop Stability Compensation Technique for Continuous-Time Common-Mode Feedback Circuits
- 발행일
- 201511
- 출처
- International SoC Design Conference (ISOCC) 2015, pp.241-242
- 초록
- A loop stability compensation technique for continuous-time common-mode feedback (CMFB) circuits is presented. A Miller capacitor and nulling resistor in the compensation network provide a reliable and stable operation of the fully-differential operational amplifier without any performance degradation. The amplifier is designed in a 130 nm CMOS technology, achieves simulated performance of 57 dB open loop DC gain, 1.3-GHz unity-gain frequency and 65째 phase margin. Also, the loop gain, bandwidth and phase margin of the CMFB are 51 dB, 27 MHz, and 76째, respectively.
- KSP 제안 키워드
- 130 nm, CMOS Technology, Common Mode Feedback(CMFB), Continuous-Time, DC gain, Feedback Circuit, Fully differential, Loop Gain, Miller Capacitor, Operational Amplifiers(Op-Amps), Phase margin