A Scaled Electronically-configurable Multichannel Recording Array

This paper describes a multichannel nucroelectrode array capable of recording angle-unit neural actlwty m the central nervous system The probe features 32 recording sites on a scaled shank less than 50 pm wide On-chip CMOS clrcmtry amplements signal amphficatlon, multlplexmg, and selftestmg on eight active channels selected from among the 32 sites The clrcmtry has a power dissipation of 3 mW, an active area of 2 5 mm’, and reqmres only three external leads It utlhzes bldlrectlonal slgnal transmission over the output data lead for signal output and for channel selection