Theory and Practical Implementation of a 5th-Order Sigma-Delta A/D Converter

Adams RW, Ferguson J,PF, Vincellette S, Ganesan A, Volpe T, Libert B. Theory and Practical Implementation of a 5th-Order Sigma-Delta A/D Converter. In: AES Convention 90. Audio Engineering Society; 1991. Paper 3017. Available from: https://aes.org/publications/elibrary-page/?id=5676

@inproceedings{Adams1991_5676,
  author = {Adams, Robert W. and Ferguson, Jr., P. F. and Vincellette, S. and Ganesan, A. and Volpe, T. and Libert, B.},
  title = {{Theory and Practical Implementation of a 5th-Order Sigma-Delta A/D Converter}},
  booktitle = {AES Convention 90},
  note = {Paper 3017},
  year = {1991},
  month = feb,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=5676}
}

TY  - CPAPER
TI  - Theory and Practical Implementation of a 5th-Order Sigma-Delta A/D Converter
AU  - Adams, Robert W.
AU  - Ferguson, Jr., P. F.
AU  - Vincellette, S.
AU  - Ganesan, A.
AU  - Volpe, T.
AU  - Libert, B.
T2  - AES Convention 90
M1  - Paper 3017
PY  - 1991
DA  - 1991/02/06
UR  - https://aes.org/publications/elibrary-page/?id=5676
PB  - Audio Engineering Society
LA  - en
AB  - One-bit noise-shaping converters with high-order loop filters have long been considered difficult or impossible to stabilize. In this paper we discuss a new approach that simplifies the analysis of high-order loops, and present several topologies that can be used for the implementation of such loops. An 18-bit A/D converter IC has been designed using this approach that uses a 5th-order loop filter with an unusual loop topology. Implementation of the 5th-order loop filter using differential switched-capacitor techniques is described. A one-step decimation filter with 115 dB stopband attenuation is used to remove out-of-band shaped quantization noise. Preliminary measurements indicate a dynamic range of 105 dB, a number which is compatible with the requirements of professional audio.
ER  -