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A wide-band AC-coupled current source for electrical impedance tomography.
Bragós R, Rosell J, Riu P. Bragós R, et al. Physiol Meas. 1994 May;15 Suppl 2a:A91-9. doi: 10.1088/0967-3334/15/2a/013. Physiol Meas. 1994. PMID: 8087056
The lack in gain accuracy of this circuit is overcome by the inclusion of its input buffer in an operational amplifier (op amp) feedback loop. Saturation problems that appear when placing a DC-blocking capacitor between the source and the electrode are solved by a DC feedb …
The lack in gain accuracy of this circuit is overcome by the inclusion of its input buffer in an operational amplifier (op amp) feedb …
Two multichannel integrated circuits for neural recording and signal processing.
Obeid I, Morizio JC, Moxon KA, Nicolelis MA, Wolf PD. Obeid I, et al. IEEE Trans Biomed Eng. 2003 Feb;50(2):255-8. doi: 10.1109/TBME.2002.807643. IEEE Trans Biomed Eng. 2003. PMID: 12665041
We have developed, manufactured, and tested two analog CMOS integrated circuit "neurochips" for recording from arrays of densely packed neural electrodes. Device A is a 16-channel buffer consisting of parallel noninverting amplifiers with a gain of 2 V/V. ...
We have developed, manufactured, and tested two analog CMOS integrated circuit "neurochips" for recording from arrays of densely packed neur …