@conference {8008461,
	title = {A 1V 0.25uW inverter-stacking amplifier with 1.07 noise efficiency factor},
	booktitle = {2017 Symposium on VLSI Circuits},
	year = {2017},
	month = {June},
	pages = {C140-C141},
	abstract = {This paper presents a highly power efficient amplifier. By stacking inverters and splitting the capacitor feedback network, the proposed amplifier achieves 6-time current reuse, thereby significantly boosting gm and lowering noise but without increasing power. A novel biasing scheme is devised to ensure robust operation under 1V supply. A prototype in 180nm CMOS has 5.5uV rms noise within 10kHz BW while consuming only 0.25uW, leading to a noise efficiency factor (NEF) of 1.07, which is the best among reported amplifiers.},
	doi = {10.23919/VLSIC.2017.8008461},
	author = {Shen, Linxiao and Lu, Nanshu and Sun, Nan}
}
