MSc Eland

1. A 440-μW, 109.8-dB DR, 106.5-dB SNDR Discrete-Time Zoom ADC With a 20-kHz BW
   E. Eland; S. Karmakar; B. Gönen; R. van Veldhoven; K. A. A. Makinwa;
   IEEE Journal of Solid-State Circuits,
   Volume 56, pp. 1207-1215, January 2021. DOI: 10.1109/JSSC.2020.3044896
   
   Abstract: ...

   This article describes a discrete-time zoom analog-to-digital converter (ADC) intended for audio applications. It uses a coarse 5-bit SAR ADC in tandem with a fine third-order delta–sigma modulator ( ΔΣM ) to efficiently obtain a high dynamic range. To minimize its over-sampling ratio (OSR) and, thus, its digital power consumption, the modulator employs a 2-bit quantizer and a loop filter notch. In addition, an extra feed-forward path minimizes the leakage of the SAR ADC’s quantization noise into the audio band. The prototype ADC occupies 0.27 mm 2 in a 0.16- μm technology. It achieves 109.8-dB DR, 106.5-dB SNDR, and 107.5-dB SNR in a 20-kHz bandwidth while dissipating 440 μW . It also achieves state-of-the-art energy efficiency, as demonstrated by a Schreier FoM of 186.4 dB and an SNDR FoM of 183.6 dB.

2. A 440μW, 109.8dB DR, 106.5dB SNDR Discrete-Time Zoom ADC with a 20kHz BW
   E. Eland; S. Karmakar; B. Gönen; R. van Veldhoven; K. Makinwa;
   In Dig. Techn. Paper IEEE Symposium on VLSI Circuits (VLSI),
   June 2020. DOI: 10.1109/VLSICircuits18222.2020.9162856.

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