Abstract
This paper presents the first dynamic zoom ADC. Intended for audio applications, it achieves 109-dB DR, 106-dB signal-to-noise ratio, and 103-dB SNDR in a 20-kHz bandwidth, while dissipating only 1.12 mW. This translates into the state-of-the-art energy efficiency as expressed by a Schreier FoM of 181.5 dB. It also achieves the state-of-the-art area efficiency, occupying only 0.16 mm2 in the 0.16- μm CMOS. These advances are enabled by the use of concurrent fine and coarse conversions, dynamic error-correction techniques, and a dynamically biased inverter-based operational transconductance amplifier.
Original language | English |
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Article number | 7887686 |
Pages (from-to) | 1542-1550 |
Number of pages | 9 |
Journal | IEEE Journal of Solid State Circuits |
Volume | 52 |
Issue number | 6 |
DOIs | |
Publication status | Published - 2017 |
Bibliographical note
Accepted author manuscriptKeywords
- Audio
- compact ADC
- delta sigma
- discrete time
- dynamic
- dynamic range (DR)
- hybrid ADC
- precision
- zoom ADC