imec debuts low power ECG chip at ISSCC

At this week's International Solid State Circuits Conference (ISSCC), imec and Holst Centre have demonstrated a low power, single channel electrocardiography (ECG) acquisition chip with analogue feature extraction.

Aimed at devices such as leadless pacemakers, the implantable chip enables the precise monitoring of the signal activity in a selected frequency band. Designed to consume just 680nA, imec says it provides input SNR>70dB, CMRR >90dB and PSRR >80dB without the need for any external passive components. What's more, the analogue feature extractor makes the ECG chip suitable for digital signal processor platforms for the implementation of low power heartbeat detection algorithms.