A 170nW CMOS wake-up receiver with -60 dBm sensitivity using AlN high-Q piezoelectric resonators. - Scott T. Block; Xiaonan Jiang; Brad Harris; Can Cui; Jeronimo Segovia Fernandez; Rajeevan Amirtharajah; David A. Horsley; Hooman Rashtian; Xiaoguang Leo Liu (ISCAS, 2017)