IEICE Electronics Express
Online ISSN : 1349-2543
ISSN-L : 1349-2543
LETTER
Switched capacitor bandgap voltage reference for sub-1-V operation
Suheng ChenBenjamin J. Blalock
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JOURNALS FREE ACCESS

2006 Volume 3 Issue 24 Pages 529-533

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Abstract

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.

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© 2006 by The Institute of Electronics, Information and Communication Engineers
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