A Review on Direct Digital Conversion Techniques for Biomedical Signal Acquisition

Yizhao Zhou, Shuang Song, Shiwei Wang, Yalong Wan, Tian Yang, Xiaopeng Yu, Menglian Zhao

Research output: Contribution to journalArticlepeer-review

Abstract / Description of output

Biomedical signals such as Electrocardiogram (ECG), Electroencephalogram (EEG) and photoplethysmography (PPG) are recorded routinely to provide helpful information for early diagnosis of disease. Low power consumption is very important to allow long-term ambulatory monitoring with battery-powered systems. A direct digital conversion (DDC) technique has been proposed in recent years, which employs preamplifier and data converters, reducing the complexity of the readout chain and thus its power consumption. This paper provides a review on DDC for biopotential signals and bio-optical signal acquisition. The state-of-the-art DDC-based readout architectures together with circuit implementations are provided.
Original languageEnglish
Article number2676
Issue number12
Early online date15 Jun 2023
Publication statusE-pub ahead of print - 15 Jun 2023

Keywords / Materials (for Non-textual outputs)

  • biomedical signal
  • direct digital conversion
  • electrocardiogram
  • electroencephalogram
  • photoplethysmography


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