Key result
Direct digital conversion techniques reduce readout complexity and power consumption to facilitate long-term ambulatory monitoring.
Why the study?
Low power consumption is critical for long-term ambulatory biomedical monitoring, motivating direct digital conversion techniques that reduce readout chain complexity and power consumption.
This review summarizes direct digital conversion techniques that reduce power consumption and complexity in ambulatory biomedical signal monitoring systems.
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.
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Zhou et al. (2023) conducted a review in Biomedical signal acquisition. Direct digital conversion (DDC) techniques was evaluated. Direct digital conversion techniques for biomedical signal acquisition reduce the complexity of the readout chain and its power consumption, facilitating long-term ambulatory monitoring.
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