A CMOS Gas Sensor Array Platform With Fourier Transform Based Impedance Spectroscopy. - Pramod Murali; Ranjit K.; Navakanta Bhat; Gaurab Banerjee; Bharadwaj Amrutur; K. N. Bhat; Praveen C. Ramamurthy (IEEE Trans. Circuits Syst. I Regul. Pap., 2012)