Abstract
Achieving an accurate sub-Hz high-pass (HP) cutoff frequency and simultaneously a high accuracy of the transfer function is a challenge in the implementation of analog-to-digital converters for biomedical ExG signals. A structured electronic design approach based on state-space forms is proposed to develop HPΣΔ modulators targeting high accuracy of the HP cutoff frequency and good linearity. Intermediate transfer functions are mathematically evaluated to compare the proposed HPΣΔ topologies with respect to dynamic range. Finally, to illustrate the design method, an orthonormal HPΣΔ modulator is designed to be implemented in 0.18 μm technology which achieves a linearity of 12-bits.
Original language | English |
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Title of host publication | Conference Proceedings - IEEE International Symposium on Circuits and Systems, ISCAS 2017 |
Place of Publication | Piscataway, NJ |
Publisher | IEEE |
Pages | 2416-2419 |
Number of pages | 4 |
ISBN (Electronic) | 978-1-4673-6853-7 |
ISBN (Print) | 978-1-4673-6852-0 |
DOIs | |
Publication status | Published - 2017 |
Event | ISCAS 2017 - IEEE International Symposium on Circuits and Systems: From Dreams to Innovation - Baltimore, MD, United States Duration: 28 May 2017 → 31 May 2017 Conference number: 50 http://iscas2017.org/ |
Conference
Conference | ISCAS 2017 - IEEE International Symposium on Circuits and Systems |
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Abbreviated title | ISCAS |
Country/Territory | United States |
City | Baltimore, MD |
Period | 28/05/17 → 31/05/17 |
Internet address |
Bibliographical note
Accepted author manuscriptKeywords
- Topology
- Frequency modulation
- Transfer functions
- Linearity
- Mathematical model
- Cutoff frequency