Dynamic calibration of feedback DAC non-linearity for a 4 th order CT sigma delta for digital hearing aids

Syed R. Naqvi; Ilker Deligoz; Sayfe Kiaei; Bertan Bakkaloglu

doi:10.1109/SOCC.2011.6085129

Dynamic calibration of feedback DAC non-linearity for a 4 ^th order CT sigma delta for digital hearing aids

Syed R. Naqvi, Ilker Deligoz, Sayfe Kiaei, Bertan Bakkaloglu

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

Abstract

In this paper we present a calibration scheme for calibrating the 2 ^nd order harmonic distortion of feedback DAC used in a 4 ^th order CT-Δ. This scheme was implemented in a 0.25um CMOS process with a supply voltage of 1.2V, the 4 ^th order CT-Δ was able to achieve 68dB measured SNR, while the 2 ^nd order harmonic was reduced by about 20dB suppressing it to the thermal noise floor.

Original language	English (US)
Title of host publication	Proceedings - IEEE International SOC Conference, SOCC 2011
Pages	109-113
Number of pages	5
DOIs	https://doi.org/10.1109/SOCC.2011.6085129
State	Published - 2011
Event	24th IEEE International System on Chip Conference, SOCC 2011 - Taipei, Taiwan, Province of China Duration: Sep 26 2011 → Sep 28 2011

Publication series

Name	International System on Chip Conference
ISSN (Print)	2164-1676
ISSN (Electronic)	2164-1706

Other

Other	24th IEEE International System on Chip Conference, SOCC 2011
Country/Territory	Taiwan, Province of China
City	Taipei
Period	9/26/11 → 9/28/11

ASJC Scopus subject areas

Hardware and Architecture
Control and Systems Engineering
Electrical and Electronic Engineering

Access to Document

10.1109/SOCC.2011.6085129

Cite this

Dynamic calibration of feedback DAC non-linearity for a 4 ^th order CT sigma delta for digital hearing aids. / Naqvi, Syed R.; Deligoz, Ilker; Kiaei, Sayfe et al.
Proceedings - IEEE International SOC Conference, SOCC 2011. 2011. p. 109-113 6085129 (International System on Chip Conference).

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

Naqvi, SR, Deligoz, I, Kiaei, S & Bakkaloglu, B 2011, Dynamic calibration of feedback DAC non-linearity for a 4 ^th order CT sigma delta for digital hearing aids. in Proceedings - IEEE International SOC Conference, SOCC 2011., 6085129, International System on Chip Conference, pp. 109-113, 24th IEEE International System on Chip Conference, SOCC 2011, Taipei, Taiwan, Province of China, 9/26/11. https://doi.org/10.1109/SOCC.2011.6085129

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