A Family of Low-Voltage Bulk-Driven CMOS Continuous-Time CMFB Circuits

作者：Carrillo Juan M^*; Torelli Guido; Dominguez Miguel A; Perez Aloe Raquel; Valverde Jose M; Francisco Duque Carrillo J

来源：IEEE Transactions on Circuits and Systems II-Express Briefs, 2010, 57(11): 863-867.

DOI：10.1109/TCSII.2010.2068090

• Bulk-driven MOS transistors
• CMOS analog integrated circuits
• common-mode feedback (CMFB)
• fully differential amplifiers
• low-voltage

This brief introduces four different structures for implementing a continuous-time common-mode feedback (CMFB) network for fully differential (FD) amplifiers. The proposed circuits use bulk-driven MOS transistors, thus representing a low-voltage realization of their gate-driven counterparts. The CMFB circuits were included in a 1.5-V FD buffer implemented in standard 0.35-mu m CMOS technology. Experimental results illustrate the performance of the proposed schemes, demonstrating their suitability to operate with a low supply voltage.

• 出版日期2010-11