A Hybrid ADC for High Resolution
The Zoom ADC
Burak Gonen (TU Delft - Electronic Instrumentation)
Robert Van Veldhoven (NXP Semiconductors)
Fabio Sebastiano (TU Delft - (OLD)Applied Quantum Architectures)
Kofi A.A. Makinwa (TU Delft - Microelectronics)
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Abstract
This paper presents a dynamic zoom ADC for audio applications. It achieves 109-dB DR, 106-dB SNR, and 103-dB SNDR in a 20-kHz bandwidth, while dissipating 1.12 mW and occupying only 0.16 mm2 in 0.16-μm CMOS. This translates to state-of-the-art energy and area efficiency. In this paper, the system- and circuit-level design of the ADC will be presented.