Switched capacitor bandgap voltage reference for sub-1-V operation

[摘要] References(5)Cited-By(3)A switched capacitor bandgap voltage reference circuit capable of sub-1-V operation is presented. The proposed circuit generates a sub-1-V reference voltage with a switched capacitor operation, offering several performance advantages over the current-mode sub-1-V counterpart. The proposed design provides an improved supply rejection and outperforms in the presence of process variation. In addition, the circuit does not require a start-up circuit and the associating trimming circuitry is simplistic and cost effective. The proposed sub-1-V switched capacitor BGR can be a practical sub-1-V reference candidate in ultra deep sub-micron CMOS processes.

[学科分类] 电子、光学、磁材料

[关键词] CMOS;voltage reference;sub-1-V;switched capacitor