A Highly Linear OTA-Less 1-1 MASH VCO-Based ΔΣ ADC With an Efficient Phase Quantization Noise Extraction Technique. - Hamidreza Maghami; Pedram Payandehnia; Hossein Mirzaie; Ramin Zanbaghi; Hossein Zareie; Justin B. Goins; Siladitya Dey 002; Kartikeya Mayaram; Terri S. Fiez (IEEE J. Solid State Circuits, 2020)