Zhou, Z., & Warr, P. A. (2016). A High Input Impedance Low Noise Integrated Front-End Amplifier for Neural Monitoring. IEEE Transactions on Biomedical Circuits and Systems, 10(6), 1079-1086. DOI: 10.1109/TBCAS.2016.2525810

Exploiting Electrocorticographic Spectral Characteristics for Optimized Signal Chain Design: A 1.08 Analog Front End With Reduced ADC Resolution Requirements

Electrocorticography (ECoG) is an important area of research for Brain-Computer Interface (BCI) development. ECoG, along with some other biopotentials, has spectral characteristics that can be exploited for more optimal front-end performance than is achievable with conventional techniques. This paper optimizes noise performance of such a system and discusses an equalization technique that reduc...

An Autonomous Wireless Sensor Node With Asynchronous ECG Monitoring in 0.18 µm CMOS

The design of a 13.56 MHz/402 MHz autonomous wireless sensor node with asynchronous ECG monitoring for near field communication is presented. The sensor node consists of an RF energy harvester (RFEH), a power management unit, an ECG readout, a data encoder and an RF backscattering transmitter. The energy harvester supplies the system with 1.25 V and offers a power conversion efficiency of 19% f...

An 11 mu w, two-electrode transimpedance biosignal amplifier with active current feedback stabilization

A novel two-electrode biosignal amplifier circuit is demonstrated by using a composite transimpedance amplifier input stage with active current feedback. Micropower, low gain-bandwidth product operational amplifiers can be used, leading to the lowest reported overall power consumption in the literature for a design implemented with off-the-shelf commercial integrated circuits (11 μW). Active cu...

A back-gate current neutralisation feedback loop for high input impedance neural front-end amplifiers

Guest Editorial - Selected Papers from the 2013 IEEE International Solid-State Circuits Conference (ISSCC)

T HE IEEE International Solid-State Circuits Conference (ISSCC) is the flagship conference of the IEEE Solid-State Circuits Society and the foremost global forum for presenting advances in solid-state circuits and systems-on-a-chip. From 2010–2012, the IEEE TRANSACTIONS ON BIOMEDICAL CIRCUITS AND SYSTEMS has highlighted selected papers from ISSCC on topics related to biological and healthcare a...