Title :
A multiple-output fixed current stimulation ASIC for peripherally-implantable neurostimulation system
Author :
Lee, Edward K. F. ; Matei, E. ; Gang, Van ; Shi, Jack ; Zadeh, Ali
Author_Institution :
Alfred Mann Found., Santa Clarita, CA, USA
Abstract :
A multiple-output stimulation ASIC for a peripherally-implantable neurostimulaiton system was implemented in a 0.18μm CMOS process. The numbers of anodic outputs (NEA) and cathodic outputs (NEC) can be set between 1 and 8 with a fixed total output current up to 32.6mA, independent of NEA and NEC. Fast turn on technique was proposed for the stimulator to achieve a settling time of <;5.8μs. The ASIC includes a power management unit and an electrode monitoring circuit, which consists of a 10-b ADC for monitoring the high voltage (~15V) stimulator outputs.
Keywords :
CMOS integrated circuits; analogue-digital conversion; application specific integrated circuits; prosthetics; ADC; CMOS process; anodic outputs; cathodic outputs; electrode monitoring circuit; fixed total output current; high voltage stimulator outputs; multiple-output fixed current stimulation ASIC; peripherally-implantable neurostimulation system; power management unit; size 0.18 mum; word length 10 bit; Application specific integrated circuits; Current measurement; Electrodes; Monitoring; Pain; Resistors; Voltage measurement;
Conference_Titel :
Custom Integrated Circuits Conference (CICC), 2014 IEEE Proceedings of the
Conference_Location :
San Jose, CA
DOI :
10.1109/CICC.2014.6946072
