A 4.6-400 K Functional Ringamp-Based 250 MS/s 12 b Pipelined ADC With PVT-Robust Unity-Gain-Frequency-Aware Bias Calibration

This article presents a process voltage temperature (PVT) -robust ring amplifier that enables a high speed pipelined analog-to-digital-converter (ADC) without gain calibration, operating across a temperature range of 4.6-400 K. To ensure the stability of the ringamp, given the large variation of MOS...

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