A 0.6-V, 0.015-mm(2), Time-Based ECG Readout for Ambulatory Applications in 40-nm CMOS

作者：Mohan Rachit^*; Zaliasl Samira; Gielen Georges G E; Van Hoof Chris; Yazicioglu Refet Firat; Van Helleputte Nick

来源：IEEE Journal of Solid-State Circuits, 2017, 52(1): 298-308.

DOI：10.1109/JSSC.2016.2615320

• Ambulatory
• analog front end (AFE)
• biomedical
• low area
• low voltage
• scaled technology
• time-based
• wearable

A scalable time-based analog front end in 40-nm CMOS is presented for ECG readout for ambulatory applications. The main challenge addressed is achieving a large dynamic range readout (necessary to handle large signals during motion) in a power and area-efficient manner at low voltage supplies while also tackling the challenges of increase in flicker noise and gate-leakage current. Demonstrated results show a significant improvement in ac-dynamic range without compromising on area (0.015 mm(2)) and power consumption (3.3 mu W). This paper will be relevant toward developing low-cost, low-power sensor system-on-chips required for wearable biomedical applications.

• 出版日期2017-1