Efficient technique for excess loop delay compensation in continuous-time ΔΣ modulators

Y. Zhang; Chia-Hung Chen; G. C. Temes

doi:10.1049/el.2013.3470

Efficient technique for excess loop delay compensation in continuous-time ΔΣ modulators

Y. Zhang, Chia-Hung Chen, G. C. Temes

Department of Electrical and Computer Engineering

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

5 Scopus citations

Abstract

A highly digital technique is proposed for excess loop delay (ELD) compensation in multi-bit continuous-time ΔΣ modulators. A digitally controlled reference switching matrix is used to replace the powerhungry signal adder and extra DAC driving the quantiser, which are commonly used in ELD compensation. With the proposed technique, the feedback DAC is embedded in the quantiser and implemented by a few switches. Thus, it allows low-voltage and low-power operation.

Original language	English
Pages (from-to)	1522-1523
Number of pages	2
Journal	Electronics Letters
Volume	49
Issue number	24
DOIs	https://doi.org/10.1049/el.2013.3470
State	Published - 21 Nov 2013

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Efficient technique for excess loop delay compensation in continuous-time ΔΣ modulators

Abstract

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