2008 · 40 citations · 5 references
EngineeringBiomedical EngineeringElectrical EngineeringAnalog ElectronicsInstrumentationSensorsAnalog Integrated CircuitsBiomedical InstrumentationBiomedical SensorsCmos Circuit DesignElectrocardiographyMedical InstrumentationBand-pass FilteringCmos Analog Circuit DesignCmos Analog Integrated CircuitsElectrocardiography InstrumentationEnergy-efficient ArchitectureLow-power Sensor InterfacesSensor Interface CircuitsUltra-low-power Cmos
This paper presents a 1 V 450 nW fully integrated bio-signal acquisition IC in 0.35 μm CMOS technology which includes a tunable band-pass filter, a variable gain amplifier, and a 12-bit ADC. The ultra-low power is achieved by using an energy-efficient system architecture and a novel tunable band-pass filter. The measurement shows that the overall system draws only 445 nA current from a 1 V supply in the detection mode and 895 nA in the diagnosis mode for electrocardiogram (ECG) applications.
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