A 1.65mW 0.16mm² Dynamic Zoom-ADC with 107.5dB DR in 20kHz BW

B. Gönen; F. Sebastiano; R. van Veldhoven; K.A.A. Makinwa

doi:10.1109/ISSCC.2016.7418017

A 1.65mW 0.16mm² Dynamic Zoom-ADC with 107.5dB DR in 20kHz BW

B. Gönen, F. Sebastiano, R. van Veldhoven, K.A.A. Makinwa

Research output: Chapter in Book/Conference proceedings/Edited volume › Conference contribution › Scientific › peer-review

50 Citations (SciVal)

Abstract

Audio codecs for automotive applications and smartphones require up to five stereo channels to achieve effective acoustic noise and echo cancellation, thus demanding ADCs with low power and minimal die area. Zoom-ADCs should be well suited for such applications, since they combine compact and energy-efficient SAR ADCs with low-distortion ΔΣ ADCs to simultaneously achieve high energy efficiency, small die area, and high linearity [1,2]. However, previous implementations were limited to the conversion of quasi-static signals, since the two ADCs were operated sequentially, with a coarse SAR conversion followed by, a much slower, fine ΔΣ conversion. This work describes a zoom-ADC with a 20kHz bandwidth, which achieves 107.5dB DR and 104.4dB SNR while dissipating 1.65mW and occupying 0.16mm2. A comparison with recent state-of-the-art ADCs with similar resolution and bandwidth [3-7] shows that the ADC achieves significantly improved energy and area efficiency. These advances are enabled by the use of concurrent fine and coarse conversions, dynamic error-correction techniques, and an inverter-based OTA.

Original language	English
Title of host publication	2016 IEEE International Solid-State Circuits Conference, ISSCC 2016
Subtitle of host publication	Digest of Technical Papers
Editors	Laura C. Fujino
Place of Publication	Danvers, MA
Publisher	IEEE
Pages	282-283
Number of pages	2
ISBN (Electronic)	978-1-4673-9467-3
ISBN (Print)	978-1-4673-9466-6
DOIs	https://doi.org/10.1109/ISSCC.2016.7418017
Publication status	Published - 1 Feb 2016
Event	2016 IEEE International Solid-State Circuits Conference, ISSCC 2016 - San Francisco, CA, United States Duration: 31 Jan 2016 → 4 Feb 2016 http://isscc.org/index.html

Conference

Conference	2016 IEEE International Solid-State Circuits Conference, ISSCC 2016
Abbreviated title	ISSCC 2016
Country/Territory	United States
City	San Francisco, CA
Period	31/01/16 → 4/02/16
Internet address	http://isscc.org/index.html

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Keywords

Modulation
Capacitors
Solid state circuits
Energy efficiency
Linearity
Bandwidth
Vehicle dynamics

Access to Document

10.1109/ISSCC.2016.7418017

Cite this

@inproceedings{6a5332fbeb5f4d8b9432d06806a3a54a,

title = "A 1.65mW 0.16mm² Dynamic Zoom-ADC with 107.5dB DR in 20kHz BW",

abstract = "Audio codecs for automotive applications and smartphones require up to five stereo channels to achieve effective acoustic noise and echo cancellation, thus demanding ADCs with low power and minimal die area. Zoom-ADCs should be well suited for such applications, since they combine compact and energy-efficient SAR ADCs with low-distortion ΔΣ ADCs to simultaneously achieve high energy efficiency, small die area, and high linearity [1,2]. However, previous implementations were limited to the conversion of quasi-static signals, since the two ADCs were operated sequentially, with a coarse SAR conversion followed by, a much slower, fine ΔΣ conversion. This work describes a zoom-ADC with a 20kHz bandwidth, which achieves 107.5dB DR and 104.4dB SNR while dissipating 1.65mW and occupying 0.16mm2. A comparison with recent state-of-the-art ADCs with similar resolution and bandwidth [3-7] shows that the ADC achieves significantly improved energy and area efficiency. These advances are enabled by the use of concurrent fine and coarse conversions, dynamic error-correction techniques, and an inverter-based OTA.",

keywords = "Modulation, Capacitors, Solid state circuits, Energy efficiency, Linearity, Bandwidth, Vehicle dynamics",

author = "B. G{\"o}nen and F. Sebastiano and {van Veldhoven}, R. and K.A.A. Makinwa",

year = "2016",

month = feb,

day = "1",

doi = "10.1109/ISSCC.2016.7418017",

language = "English",

isbn = "978-1-4673-9466-6",

pages = "282--283",

editor = "Fujino, {Laura C.}",

booktitle = "2016 IEEE International Solid-State Circuits Conference, ISSCC 2016",

publisher = "IEEE",

address = "United States",

note = "2016 IEEE International Solid-State Circuits Conference, ISSCC 2016, ISSCC 2016 ; Conference date: 31-01-2016 Through 04-02-2016",

url = "http://isscc.org/index.html",

}

Gönen, B, Sebastiano, F, van Veldhoven, R & Makinwa, KAA 2016, A 1.65mW 0.16mm² Dynamic Zoom-ADC with 107.5dB DR in 20kHz BW. in LC Fujino (ed.), 2016 IEEE International Solid-State Circuits Conference, ISSCC 2016: Digest of Technical Papers. IEEE, Danvers, MA, pp. 282-283, 2016 IEEE International Solid-State Circuits Conference, ISSCC 2016, San Francisco, CA, United States, 31/01/16. https://doi.org/10.1109/ISSCC.2016.7418017

A 1.65mW 0.16mm² Dynamic Zoom-ADC with 107.5dB DR in 20kHz BW. / Gönen, B.; Sebastiano, F.; van Veldhoven, R. et al.
2016 IEEE International Solid-State Circuits Conference, ISSCC 2016: Digest of Technical Papers. ed. / Laura C. Fujino. Danvers, MA: IEEE, 2016. p. 282-283.

Research output: Chapter in Book/Conference proceedings/Edited volume › Conference contribution › Scientific › peer-review

TY - GEN

T1 - A 1.65mW 0.16mm² Dynamic Zoom-ADC with 107.5dB DR in 20kHz BW

AU - Gönen, B.

AU - Sebastiano, F.

AU - van Veldhoven, R.

AU - Makinwa, K.A.A.

PY - 2016/2/1

Y1 - 2016/2/1

N2 - Audio codecs for automotive applications and smartphones require up to five stereo channels to achieve effective acoustic noise and echo cancellation, thus demanding ADCs with low power and minimal die area. Zoom-ADCs should be well suited for such applications, since they combine compact and energy-efficient SAR ADCs with low-distortion ΔΣ ADCs to simultaneously achieve high energy efficiency, small die area, and high linearity [1,2]. However, previous implementations were limited to the conversion of quasi-static signals, since the two ADCs were operated sequentially, with a coarse SAR conversion followed by, a much slower, fine ΔΣ conversion. This work describes a zoom-ADC with a 20kHz bandwidth, which achieves 107.5dB DR and 104.4dB SNR while dissipating 1.65mW and occupying 0.16mm2. A comparison with recent state-of-the-art ADCs with similar resolution and bandwidth [3-7] shows that the ADC achieves significantly improved energy and area efficiency. These advances are enabled by the use of concurrent fine and coarse conversions, dynamic error-correction techniques, and an inverter-based OTA.

AB - Audio codecs for automotive applications and smartphones require up to five stereo channels to achieve effective acoustic noise and echo cancellation, thus demanding ADCs with low power and minimal die area. Zoom-ADCs should be well suited for such applications, since they combine compact and energy-efficient SAR ADCs with low-distortion ΔΣ ADCs to simultaneously achieve high energy efficiency, small die area, and high linearity [1,2]. However, previous implementations were limited to the conversion of quasi-static signals, since the two ADCs were operated sequentially, with a coarse SAR conversion followed by, a much slower, fine ΔΣ conversion. This work describes a zoom-ADC with a 20kHz bandwidth, which achieves 107.5dB DR and 104.4dB SNR while dissipating 1.65mW and occupying 0.16mm2. A comparison with recent state-of-the-art ADCs with similar resolution and bandwidth [3-7] shows that the ADC achieves significantly improved energy and area efficiency. These advances are enabled by the use of concurrent fine and coarse conversions, dynamic error-correction techniques, and an inverter-based OTA.

KW - Modulation

KW - Capacitors

KW - Solid state circuits

KW - Energy efficiency

KW - Linearity

KW - Bandwidth

KW - Vehicle dynamics

U2 - 10.1109/ISSCC.2016.7418017

DO - 10.1109/ISSCC.2016.7418017

M3 - Conference contribution

SN - 978-1-4673-9466-6

SP - 282

EP - 283

BT - 2016 IEEE International Solid-State Circuits Conference, ISSCC 2016

A2 - Fujino, Laura C.

PB - IEEE

CY - Danvers, MA

T2 - 2016 IEEE International Solid-State Circuits Conference, ISSCC 2016

Y2 - 31 January 2016 through 4 February 2016

ER -

A 1.65mW 0.16mm² Dynamic Zoom-ADC with 107.5dB DR in 20kHz BW

Abstract

Conference

UN SDGs

Keywords

Access to Document

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