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This paper presents a low power, high resolution bio-impedance sensor IC for respiration monitoring application. It contains the dual path instrumentation amplifier (DPIA) including current reusing transconductance amplifier and high gain transimpedance amplifier for high resolution, low power and wide input range bio-impedance measurement. Measured results show that the proposed readout circuit has...
The wrist patch-type ECG/APW sensor system is proposed for continuous and comprehensive monitoring of the patient's cardiovascular system. The wrist patch-type ECG/APW sensor system is consists of ECG/APW sensor, ECG/APW electrodes, and base station for real-time monitoring of the patient's status. The ECG/APW sensor and electrodes are composed of wrist patch, bandage-type ECG electrode and fabric...
A dedicated ultra-low power arterial pulse wave (APW) sensor for wrist watch type system is implemented in 0.18-μm CMOS technology with 1.8-V supply. A duty cycle controlled (DCC) current source (CS) enables low-power consuming current injection with 98% power reduction. A DC balanced amplifier reduces settling time by 72%, enabling fast APW signal acquisition when motion artifact is occurred. The...
<?Pub Dtl?>A mobile electrical impedance tomography (EIT) IC is proposed for early breast cancer detection personally at home. To assemble the entire system into a simple brassiere shape, EIT IC is integrated via a multi-layered fabric circuit board which includes 90 EIT electrodes and two reference electrodes for current stimulation and voltage sensing. The IC supports three operating modes;...
Recently, mental diseases have been successfully treated by neuro-feedback therapy based on Quantitative EEG (QEEG) and Event Related Potential (ERP) online data measurements. The U.S. Food and Drug Administration (FDA) approved the first EEG test for diagnosing attention deficit hyperactivity disorder (ADHD) in 2013 [1]. The EEG signals are measured by an EEG cap and analyzed by a high performance...
Approximately 1 in 8 U.S. women will develop breast cancer over the course of her lifetime, and breast cancer death rates are higher than those for any other cancer, besides lung cancer. In 2013, an estimated 232,340 new cases of invasive breast cancer are expected to be diagnosed in women in the U.S. and about 39,620 women in the U.S. are expected to die from breast cancer [1]. According to the World...
Ultra-low-power wireless connectivity among devices placed in, on and around the human body is the key technology for continuous, automated, and unobtrusive monitoring of physiological signals. Recently, the IEEE Standards Association established a wireless body-area-network (WBAN) standard for a short-range, low-power and highly reliable wireless communication around the human body [1]. According...
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