A cascaded continuous-time ΣΔ modulator with 80 dB dynamic range

被引:0
|
作者
Ortmanns, M [1 ]
Kuderer, M [1 ]
Manoli, K [1 ]
Gerfers, F [1 ]
机构
[1] Univ Freiburg, D-79110 Freiburg, Germany
关键词
D O I
暂无
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
This paper presents the implementation of the first 2-1-1, cascaded continuous-time (CT) sigma-delta (SigmaDelta) modulator. The successful realization is shown by measurements and a dynamic range of 80 dB is achieved. Special attention has been paid to the egain-error mismatch and a previously reported digital correction. Therefore, the modulator has been implemented on a circuit board to be able to test this non-ideal behavior and to compensate for it. It could be shown, that cascaded CT SigmaDelta modulators have the potential to be integrated as high-speed, high-resolution circuits.
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收藏
页码:405 / 408
页数:4
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