A 185 μw -105.1 dB THD 88.6 dB SNDR Negative-R Stabilized Audio Preamplifier

Seungwoo Song; Changuk Lee; Moonhyung Jang; Youngcheol Chae

doi:10.1109/ESSCIRC.2019.8902846

A 185 μw -105.1 dB THD 88.6 dB SNDR Negative-R Stabilized Audio Preamplifier

Seungwoo Song, Changuk Lee, Moonhyung Jang, Youngcheol Chae

Department of Electrical and Electronic Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

6 Citations (Scopus)

Abstract

This paper presents a low-power preamplifier for high fidelity audio codecs. It attains high linearity at low power by using a negative-R stabilized amplifier architecture that employs a negative-R assisted amplifier in a low-frequency path to cancel the non-idealities of a main amplifier. This shows the in-band noise attenuation of amplifiers and the drastic improvement of the linearity. Fabricated in a 65-nm CMOS process,the preamplifier achieves -105.1 dB THD,88.6 dB SNDR,and 89.3 dB DR with 20 dB gain in 20 kHz bandwidth,while consuming only 185 μW from a 1.2 V supply. This results in the highest energy-efficiency FoMSNDR of 168.9 dB among audio preamplifiers.

Original language	English
Title of host publication	ESSCIRC 2019 - IEEE 45th European Solid State Circuits Conference
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	261-264
Number of pages	4
ISBN (Electronic)	9781728115504
DOIs	https://doi.org/10.1109/ESSCIRC.2019.8902846
Publication status	Published - 2019 Sept
Event	45th IEEE European Solid State Circuits Conference, ESSCIRC 2019 - Cracow, Poland Duration: 2019 Sept 23 → 2019 Sept 26

Publication series

Name	ESSCIRC 2019 - IEEE 45th European Solid State Circuits Conference

Conference

Conference	45th IEEE European Solid State Circuits Conference, ESSCIRC 2019
Country/Territory	Poland
City	Cracow
Period	19/9/23 → 19/9/26

Bibliographical note

Publisher Copyright:
© 2019 IEEE.

All Science Journal Classification (ASJC) codes

Instrumentation
Electronic, Optical and Magnetic Materials
Hardware and Architecture
Electrical and Electronic Engineering

UN SDGs

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

Access to Document

10.1109/ESSCIRC.2019.8902846

Cite this

Song, S., Lee, C., Jang, M., & Chae, Y. (2019). A 185 μw -105.1 dB THD 88.6 dB SNDR Negative-R Stabilized Audio Preamplifier. In ESSCIRC 2019 - IEEE 45th European Solid State Circuits Conference (pp. 261-264). Article 8902846 (ESSCIRC 2019 - IEEE 45th European Solid State Circuits Conference). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ESSCIRC.2019.8902846

@inproceedings{75d566920bf844b7beb528ecf9c60a69,

title = "A 185 μw -105.1 dB THD 88.6 dB SNDR Negative-R Stabilized Audio Preamplifier",

abstract = "This paper presents a low-power preamplifier for high fidelity audio codecs. It attains high linearity at low power by using a negative-R stabilized amplifier architecture that employs a negative-R assisted amplifier in a low-frequency path to cancel the non-idealities of a main amplifier. This shows the in-band noise attenuation of amplifiers and the drastic improvement of the linearity. Fabricated in a 65-nm CMOS process,the preamplifier achieves -105.1 dB THD,88.6 dB SNDR,and 89.3 dB DR with 20 dB gain in 20 kHz bandwidth,while consuming only 185 μW from a 1.2 V supply. This results in the highest energy-efficiency FoMSNDR of 168.9 dB among audio preamplifiers.",

author = "Seungwoo Song and Changuk Lee and Moonhyung Jang and Youngcheol Chae",

note = "Publisher Copyright: {\textcopyright} 2019 IEEE.; 45th IEEE European Solid State Circuits Conference, ESSCIRC 2019 ; Conference date: 23-09-2019 Through 26-09-2019",

year = "2019",

month = sep,

doi = "10.1109/ESSCIRC.2019.8902846",

language = "English",

series = "ESSCIRC 2019 - IEEE 45th European Solid State Circuits Conference",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

pages = "261--264",

booktitle = "ESSCIRC 2019 - IEEE 45th European Solid State Circuits Conference",

address = "United States",

}

Song, S, Lee, C, Jang, M & Chae, Y 2019, A 185 μw -105.1 dB THD 88.6 dB SNDR Negative-R Stabilized Audio Preamplifier. in ESSCIRC 2019 - IEEE 45th European Solid State Circuits Conference., 8902846, ESSCIRC 2019 - IEEE 45th European Solid State Circuits Conference, Institute of Electrical and Electronics Engineers Inc., pp. 261-264, 45th IEEE European Solid State Circuits Conference, ESSCIRC 2019, Cracow, Poland, 19/9/23. https://doi.org/10.1109/ESSCIRC.2019.8902846

A 185 μw -105.1 dB THD 88.6 dB SNDR Negative-R Stabilized Audio Preamplifier. / Song, Seungwoo; Lee, Changuk; Jang, Moonhyung et al.
ESSCIRC 2019 - IEEE 45th European Solid State Circuits Conference. Institute of Electrical and Electronics Engineers Inc., 2019. p. 261-264 8902846 (ESSCIRC 2019 - IEEE 45th European Solid State Circuits Conference).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

TY - GEN

T1 - A 185 μw -105.1 dB THD 88.6 dB SNDR Negative-R Stabilized Audio Preamplifier

AU - Song, Seungwoo

AU - Lee, Changuk

AU - Jang, Moonhyung

AU - Chae, Youngcheol

PY - 2019/9

Y1 - 2019/9

N2 - This paper presents a low-power preamplifier for high fidelity audio codecs. It attains high linearity at low power by using a negative-R stabilized amplifier architecture that employs a negative-R assisted amplifier in a low-frequency path to cancel the non-idealities of a main amplifier. This shows the in-band noise attenuation of amplifiers and the drastic improvement of the linearity. Fabricated in a 65-nm CMOS process,the preamplifier achieves -105.1 dB THD,88.6 dB SNDR,and 89.3 dB DR with 20 dB gain in 20 kHz bandwidth,while consuming only 185 μW from a 1.2 V supply. This results in the highest energy-efficiency FoMSNDR of 168.9 dB among audio preamplifiers.

AB - This paper presents a low-power preamplifier for high fidelity audio codecs. It attains high linearity at low power by using a negative-R stabilized amplifier architecture that employs a negative-R assisted amplifier in a low-frequency path to cancel the non-idealities of a main amplifier. This shows the in-band noise attenuation of amplifiers and the drastic improvement of the linearity. Fabricated in a 65-nm CMOS process,the preamplifier achieves -105.1 dB THD,88.6 dB SNDR,and 89.3 dB DR with 20 dB gain in 20 kHz bandwidth,while consuming only 185 μW from a 1.2 V supply. This results in the highest energy-efficiency FoMSNDR of 168.9 dB among audio preamplifiers.

UR - http://www.scopus.com/inward/record.url?scp=85075919119&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85075919119&partnerID=8YFLogxK

U2 - 10.1109/ESSCIRC.2019.8902846

DO - 10.1109/ESSCIRC.2019.8902846

M3 - Conference contribution

AN - SCOPUS:85075919119

T3 - ESSCIRC 2019 - IEEE 45th European Solid State Circuits Conference

SP - 261

EP - 264

BT - ESSCIRC 2019 - IEEE 45th European Solid State Circuits Conference

PB - Institute of Electrical and Electronics Engineers Inc.

T2 - 45th IEEE European Solid State Circuits Conference, ESSCIRC 2019

Y2 - 23 September 2019 through 26 September 2019

ER -

A 185 μw -105.1 dB THD 88.6 dB SNDR Negative-R Stabilized Audio Preamplifier

Abstract

Publication series

Conference

Bibliographical note

All Science Journal Classification (ASJC) codes

UN SDGs

Access to Document

Other files and links

Fingerprint

Cite this