An Application-Specific Integrated Circuit (ASIC) for impedance spectroscopy was proposed for noninvasive bioimpedance analysis of human skin for blood sugar monitoring. It comprises an integrated frequency sweep generator controlled through serial peripheral interface (SPI) and an analog front-end (AFE) capable of determining the real and imaginary component of an unknown external impedance (Zx) at each excitation frequency.
B.06 Other
COBISS.SI-ID: 12061524In this paper an Application-Specific Integrated Circuit (ASIC) for impedance spectroscopy of human skin was presented. It was designed to measure the impedance of human skin in the frequency range 100 kHz – 20 MHz. To extract the real and imaginary components of impedance it exploits synchronous detection/demodulation. The reference frequency is obtained either from an internal oscillator or an external waveform generator. It consists of a digitally controlled oscillator (DCO), a voltage controlled current source (VCCS), a band-pass instrumentation amplifier (BPIA), two multipliers, a 90° phase shift circuit and two unity gain buffer amplifiers. The proposed system was designed and fabricated in 350nm CMOS technology.
B.03 Paper at an international scientific conference
COBISS.SI-ID: 11862612In the paper, non-invasive bio-impedance analysis of human skin was presented, implemented in Application-Specific Integrated Circuit (ASIC) using impedance spectroscopy method. The ASIC combines serial peripheral interface (SPI) controlled square wave generator and an analog front-end (AFE), capable of the unknown external impedance (Zx) determination. The ASIC detects real and imaginary component of Zx at chosen excitation frequencies.
B.03 Paper at an international scientific conference
COBISS.SI-ID: 12218708Design of the advanced auto calibration magnetic microsystem and design of the integrated micro coil with simulation model
D.09 Tutoring for postgraduate students