Accurate low power bandgap voltage reference in 0.5μm CMOS technology

M. A.T. Sanduleanu; A. J.M. Van Tuijl; R. F. Wassenaar

doi:10.1049/el:19980696

Accurate low power bandgap voltage reference in 0.5μm CMOS technology

M. A.T. Sanduleanu, A. J.M. Van Tuijl, R. F. Wassenaar

Electrical Engineering

Research output: Contribution to journal › Article › peer-review

13 Scopus citations

Abstract

In mixed level applications, accurate voltage references are difficult to realise due to the lack of lateral pnps and the large offsets inherent to CMOS opamps. If low power is essential, the accuracy is mainly impaired by the increased offset of the opamps. It is shown that by using chopping techniques, the accuracy of a bandgap voltage reference can be improved by about ten times without laser trimming, with the added benefit of reducing the 1/f noise of the amplifier.

Original language	British English
Pages (from-to)	1025-1026
Number of pages	2
Journal	Electronics Letters
Volume	34
Issue number	10
DOIs	https://doi.org/10.1049/el:19980696
State	Published - 14 May 1998

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Accurate low power bandgap voltage reference in 0.5μm CMOS technology

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