A Low-Power Integrated Circuit for a Wireless 100-Electrode Neural Recording System

Abstract

An implantable IC receives power and commands wirelessly through an ASK inductive link, and transmits amplified neural data using a 433MHz FSK transmitter. A 10 X 10 array of platinum-tipped silicon electrodes interfaces with a flip-chip bonded 4.7times5.9mm <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sup> 0.5μm 3M2P CMOS 13.5mW IC containing 88 neural amplifiers, 9b ADC and spike detectors used for data reduction