Session 16-4

A 1mm³ 2Mbps 330fJ/b Transponder
for Implanted Neural Sensors

 

Abstract

An implanted fully-integrated 65nm CMOS 1.1mm x 1.1mm x 0.8mm remotely-powered wireless transponder for implantable neural sensors provides 5µW for sensor interfaces, while consuming 3µW and transmitting 2Mbps at 330fJ/b without violating exposure limitations. This is accomplished by combining a time-multiplexed power and data transmission scheme with a reflective impulse transmitter architecture.