A 2.2 NEF Neural-Recording Amplifier Using Discrete-Time Parametric Amplification. - Tae-Kwang Jang; Jongyup Lim; Kyojin David Choo; Samuel Nason; Jeongsup Lee; Jeongsup Oh; Seokhyeon Jeong; Cynthia A. Chestek; Dennis Sylvester; David T. Blaauw (VLSI Circuits, 2018)