Design techniques and analysis of high-resolution neural recording systems targeting epilepsy focus localization.
The design of a high-density neural recording system targeting epilepsy monitoring is presented. Circuit challenges and techniques are discussed to optimize the amplifier topology and the included OTA. A new platform supporting active recording devices targeting wireless and high-resolution focus localization in epilepsy diagnosis is also proposed. The post-layout simulation results of an amplifier dedicated to this application are presented. The amplifier is designed in a UMC 0.18µm CMOS technology, has an NEF of 2.19 and occupies a silicon area of 0.038 mm(2), while consuming 5.8 µW from a 1.8-V supply.
Microelectronic Systems Laboratory, Swiss Federal Institute of Technology EPFL, 1015 Lausanne, Switzerland. mahsa.shoaran@epfl.ch
Mahsa
M
Shoaran
Claudio
C
Pollo
Yusuf
Y
Leblebici
Alexandre
A
Schmid
D000669:Amplifiers, Electronic; D001921:Brain / Q000503:physiopathology*; D004569:Electroencephalography / Q000295:instrumentation*; D004827:Epilepsy / Q000175:diagnosis* / Q000503:physiopathology*; D004867:Equipment Design; D019544:Equipment Failure Analysis; D006801:Humans; D008839:Microelectrodes; D018670:Monitoring, Ambulatory / Q000295:instrumentation*; D009415:Nerve Net / Q000503:physiopathology; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D012815:Signal Processing, Computer-Assisted / Q000295:instrumentation; D059015:Wireless Technology / Q000295:instrumentation*