Mixed-Signal IC With Pulse Width Modulation Wireless Telemetry for Implantable Cardiac Pacemakers in 0.18-μm CMOS

TY - JOUR

T1 - Mixed-Signal IC With Pulse Width Modulation Wireless Telemetry for Implantable Cardiac Pacemakers in 0.18-μm CMOS

AU - Rezaeiyan, Yasser

AU - Zamani, Milad

AU - Shoaei, Omid

AU - Serdijn, Wouter A.

PY - 2018/6

Y1 - 2018/6

N2 - A low-power mixed-signal IC for implantable pacemakers is presented. The proposed system features three independent intracardiac signal readout channels with pulse-width-modulated outputs. Also, the proposed system is capable of measuring the amplitude and phase of the bioimpedance with pulse-width-modulated outputs for use in rate adaptive pacemakers. Moreover, a stimulation system is embedded, offering 16 different amplitudes from 1 to 7.8 V. A backscattering transmitter transfers the output signals outside the body with very little power consumption. The proposed low-power mixed-signal IC is fabricated in a 0.18-μm HV CMOS process and occupies 2.38 mm 2. The biopotential channels extract the heart signals with 9.2 effective number of bits and the bioimpedance channels measure the amplitude and phase of the heart impedance with 1.35 Ω rms accuracy. The complete IC consumes only 4.2 μA from a 1-V power supply.

AB - A low-power mixed-signal IC for implantable pacemakers is presented. The proposed system features three independent intracardiac signal readout channels with pulse-width-modulated outputs. Also, the proposed system is capable of measuring the amplitude and phase of the bioimpedance with pulse-width-modulated outputs for use in rate adaptive pacemakers. Moreover, a stimulation system is embedded, offering 16 different amplitudes from 1 to 7.8 V. A backscattering transmitter transfers the output signals outside the body with very little power consumption. The proposed low-power mixed-signal IC is fabricated in a 0.18-μm HV CMOS process and occupies 2.38 mm 2. The biopotential channels extract the heart signals with 9.2 effective number of bits and the bioimpedance channels measure the amplitude and phase of the heart impedance with 1.35 Ω rms accuracy. The complete IC consumes only 4.2 μA from a 1-V power supply.

KW - ASIC

KW - active implantable medical device

KW - bio-impedance

KW - bio-potential amplifier

KW - cardiac pacemaker

KW - intra-cardiac signal

KW - low power

KW - wireless communication

UR - https://www.scopus.com/pages/publications/85047010407

U2 - 10.1109/TBCAS.2018.2819021

DO - 10.1109/TBCAS.2018.2819021

M3 - Journal article

SN - 1932-4545

VL - 12

SP - 589

EP - 600

JO - IEEE Transactions on Biomedical Circuits and Systems

JF - IEEE Transactions on Biomedical Circuits and Systems

IS - 3

ER -