A 13 μA analog signal processing IC for accurate recognition of multiple intra-cardiac signals.
A low-power analog signal processing IC is presented for the low-power heart rhythm analysis. The ASIC features 3 identical, but independent intra-ECG readout channels each equipping an analog QRS feature extractor for low-power consumption and fast diagnosis of the fatal case. A 16-level digitized sine-wave synthesizer together with a synchronous readout circuit can measure bio-impedance in the range of 0.1-4.4 kΩ with 33 mΩ(rms) resolution and higher than 97% accuracy. The proposed 25 mm² ASIC consumes only 13 μA from 2.2 V. It is a highly integrated solution offering all the functionality of acquiring multiple high quality intra-cardiac signals, requiring only a few limited numbers of external passives.
Long
L
Yan
Julia
J
Pettine
Srinjoy
S
Mitra
Sunyoung
S
Kim
Dong-Woo
DW
Jee
Hyejung
H
Kim
Masato
M
Osawa
Yasunari
Y
Harada
Kosei
K
Tamiya
Chris
C
Van Hoof
Refet Firat
RF
Yazicioglu
D000465:Algorithms; D004562:Electrocardiography / Q000295:instrumentation*; D004582:Electronics, Medical / Q000295:instrumentation*; D004867:Equipment Design; D006339:Heart Rate / Q000502:physiology; D006801:Humans; D010138:Pacemaker, Artificial; D019736:Prostheses and Implants; D012815:Signal Processing, Computer-Assisted / Q000295:instrumentation*