A 0.8-V Syllabic-Companding Log Domain Filter with 78-dB Dynamic Range in 0.35-µm CMOS
Summary :
A scheme for a low-voltage CMOS syllabic-companding log domain filter with wide dynamic range is proposed and its prototype is presented. A nodal voltage which is fixed in a conventional filter based on the dynamically adjustable biasing (DAB) technique is adapted for change of input envelope to achieve wide dynamic range. Externally linear and time invariant (ELTI) relation between an input and an output is guaranteed by a state variable correction (SVC) circuit which is also proposed for low-voltage operation. To demonstrate the proposed scheme, a fifth-order Chebychev low-pass filter with 100-kHz cutoff frequency is designed and fabricated in a standard 0.35-µm CMOS process. The filter has a 78-dB dynamic range and consumes 200-µW power from a 0.8-V power supply.
- Publication
- IEICE TRANSACTIONS on Electronics Vol.E91-C No.1 pp.87-95
- Publication Date
- 2008/01/01
- Publicized
- Online ISSN
- 1745-1353
- DOI
- 10.1093/ietele/e91-c.1.87
- Type of Manuscript
- PAPER
- Category
- Electronic Circuits
Authors
Keyword
Latest Issue
Copyrights notice of machine-translated contents
The copyright of the original papers published on this site belongs to IEICE. Unauthorized use of the original or translated papers is prohibited. See IEICE Provisions on Copyright for details.
Cite this
Copy
Ippei AKITA, Kazuyuki WADA, Yoshiaki TADOKORO, "A 0.8-V Syllabic-Companding Log Domain Filter with 78-dB Dynamic Range in 0.35-µm CMOS" in IEICE TRANSACTIONS on Electronics,
vol. E91-C, no. 1, pp. 87-95, January 2008, doi: 10.1093/ietele/e91-c.1.87.
Abstract: A scheme for a low-voltage CMOS syllabic-companding log domain filter with wide dynamic range is proposed and its prototype is presented. A nodal voltage which is fixed in a conventional filter based on the dynamically adjustable biasing (DAB) technique is adapted for change of input envelope to achieve wide dynamic range. Externally linear and time invariant (ELTI) relation between an input and an output is guaranteed by a state variable correction (SVC) circuit which is also proposed for low-voltage operation. To demonstrate the proposed scheme, a fifth-order Chebychev low-pass filter with 100-kHz cutoff frequency is designed and fabricated in a standard 0.35-µm CMOS process. The filter has a 78-dB dynamic range and consumes 200-µW power from a 0.8-V power supply.
URL: https://global.ieice.org/en_transactions/electronics/10.1093/ietele/e91-c.1.87/_p
Copy
@ARTICLE{e91-c_1_87,
author={Ippei AKITA, Kazuyuki WADA, Yoshiaki TADOKORO, },
journal={IEICE TRANSACTIONS on Electronics},
title={A 0.8-V Syllabic-Companding Log Domain Filter with 78-dB Dynamic Range in 0.35-µm CMOS},
year={2008},
volume={E91-C},
number={1},
pages={87-95},
abstract={A scheme for a low-voltage CMOS syllabic-companding log domain filter with wide dynamic range is proposed and its prototype is presented. A nodal voltage which is fixed in a conventional filter based on the dynamically adjustable biasing (DAB) technique is adapted for change of input envelope to achieve wide dynamic range. Externally linear and time invariant (ELTI) relation between an input and an output is guaranteed by a state variable correction (SVC) circuit which is also proposed for low-voltage operation. To demonstrate the proposed scheme, a fifth-order Chebychev low-pass filter with 100-kHz cutoff frequency is designed and fabricated in a standard 0.35-µm CMOS process. The filter has a 78-dB dynamic range and consumes 200-µW power from a 0.8-V power supply.},
keywords={},
doi={10.1093/ietele/e91-c.1.87},
ISSN={1745-1353},
month={January},}
Copy
TY - JOUR
TI - A 0.8-V Syllabic-Companding Log Domain Filter with 78-dB Dynamic Range in 0.35-µm CMOS
T2 - IEICE TRANSACTIONS on Electronics
SP - 87
EP - 95
AU - Ippei AKITA
AU - Kazuyuki WADA
AU - Yoshiaki TADOKORO
PY - 2008
DO - 10.1093/ietele/e91-c.1.87
JO - IEICE TRANSACTIONS on Electronics
SN - 1745-1353
VL - E91-C
IS - 1
JA - IEICE TRANSACTIONS on Electronics
Y1 - January 2008
AB - A scheme for a low-voltage CMOS syllabic-companding log domain filter with wide dynamic range is proposed and its prototype is presented. A nodal voltage which is fixed in a conventional filter based on the dynamically adjustable biasing (DAB) technique is adapted for change of input envelope to achieve wide dynamic range. Externally linear and time invariant (ELTI) relation between an input and an output is guaranteed by a state variable correction (SVC) circuit which is also proposed for low-voltage operation. To demonstrate the proposed scheme, a fifth-order Chebychev low-pass filter with 100-kHz cutoff frequency is designed and fabricated in a standard 0.35-µm CMOS process. The filter has a 78-dB dynamic range and consumes 200-µW power from a 0.8-V power supply.
ER -
English
