Title :
A 60/spl mu/W 60 nV/Hz Readout Front-End for Portable Biopotential Acquisition Systems
Author :
Yazicioglu, Refet Firat ; Merken, P. ; Puers, Robert ; Van Hoof, Chris
Author_Institution :
IMEC, Leuven
Abstract :
A biopotential readout front-end can be configured to extract EEG, ECG, and EMG signals and draws 20muA from 3V. AC coupling of chopped amplifiers results in an input-referred noise of 60nV/radicHz and CMRR of 120dB at 1kHz. The immunity of the CMRR to electrode offset voltages is improved with an active input stage and 110dB CMRR is achieved at 100Hz with 50mV electrode offset
Keywords :
biomedical electrodes; data acquisition; electrocardiography; electroencephalography; electromyography; medical signal processing; portable instruments; readout electronics; 1 kHz; 100 Hz; 50 mV; 60 muW; CMRR; ECG; EEG; EMG; electrode offset voltages; portable biopotential acquisition systems; readout front-end; Choppers; Electrocardiography; Electrodes; Electroencephalography; Electromyography; Frequency; Immune system; Interference; Power dissipation; Voltage;
Conference_Titel :
Solid-State Circuits Conference, 2006. ISSCC 2006. Digest of Technical Papers. IEEE International
Conference_Location :
San Francisco, CA
Print_ISBN :
1-4244-0079-1
DOI :
10.1109/ISSCC.2006.1696039
