An OTA-C filter in SOI CMOS for UWB application

Ayobami Iji; Xi Zhu; Michael Heimlich; Yichuang Sun

doi:10.1109/MWSCAS.2012.6291965

An OTA-C filter in SOI CMOS for UWB application

Ayobami Iji
, Xi Zhu
, Michael Heimlich
, Yichuang Sun

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

15 Citations (Scopus)

Abstract

A 4 ^th-order Butterworth OTA-C lowpass filter based on voltage mode multiple loop feedback (MLF) inverse follow the leader feedback (IFLF) structure is implemented to support both MB-OFDM UWB and low data rate IR-UWB applications. The filter is implemented using a fully-differential linear operational transconductance amplifier (OTA) in 0.25μm SOI CMOS process. A positive feedback topology is used to form a negative resistance load; in such a way, the DC gain of OTA is enhanced. Moreover, the linearity is improved by means of active biasing. AWR simulations in a 0.25μm SOI CMOS process with 2.5V power supply have shown that the cut-off frequency of the filter ranges from 120MHz to 280MHz and dynamic range is about 54dB. The total power consumption is only 32mW at 250MHz cut-off frequency.

Original language	English
Title of host publication	2012 IEEE 55th International Midwest Symposium on Circuits and Systems, MWSCAS 2012
Pages	93-96
Number of pages	4
DOIs	https://doi.org/10.1109/MWSCAS.2012.6291965
Publication status	Published - 16 Oct 2012
Event	2012 IEEE 55th International Midwest Symposium on Circuits and Systems, MWSCAS 2012 - Boise, ID, United States Duration: 5 Aug 2012 → 8 Aug 2012

Conference

Conference	2012 IEEE 55th International Midwest Symposium on Circuits and Systems, MWSCAS 2012
Country/Territory	United States
City	Boise, ID
Period	5/08/12 → 8/08/12

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10.1109/MWSCAS.2012.6291965

Cite this

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title = "An OTA-C filter in SOI CMOS for UWB application",

abstract = "A 4 th-order Butterworth OTA-C lowpass filter based on voltage mode multiple loop feedback (MLF) inverse follow the leader feedback (IFLF) structure is implemented to support both MB-OFDM UWB and low data rate IR-UWB applications. The filter is implemented using a fully-differential linear operational transconductance amplifier (OTA) in 0.25μm SOI CMOS process. A positive feedback topology is used to form a negative resistance load; in such a way, the DC gain of OTA is enhanced. Moreover, the linearity is improved by means of active biasing. AWR simulations in a 0.25μm SOI CMOS process with 2.5V power supply have shown that the cut-off frequency of the filter ranges from 120MHz to 280MHz and dynamic range is about 54dB. The total power consumption is only 32mW at 250MHz cut-off frequency.",

author = "Ayobami Iji and Xi Zhu and Michael Heimlich and Yichuang Sun",

year = "2012",

month = oct,

day = "16",

doi = "10.1109/MWSCAS.2012.6291965",

language = "English",

isbn = "9781467325264",

pages = "93--96",

booktitle = "2012 IEEE 55th International Midwest Symposium on Circuits and Systems, MWSCAS 2012",

note = "2012 IEEE 55th International Midwest Symposium on Circuits and Systems, MWSCAS 2012 ; Conference date: 05-08-2012 Through 08-08-2012",

}

TY - GEN

T1 - An OTA-C filter in SOI CMOS for UWB application

AU - Iji, Ayobami

AU - Zhu, Xi

AU - Heimlich, Michael

AU - Sun, Yichuang

PY - 2012/10/16

Y1 - 2012/10/16

N2 - A 4 th-order Butterworth OTA-C lowpass filter based on voltage mode multiple loop feedback (MLF) inverse follow the leader feedback (IFLF) structure is implemented to support both MB-OFDM UWB and low data rate IR-UWB applications. The filter is implemented using a fully-differential linear operational transconductance amplifier (OTA) in 0.25μm SOI CMOS process. A positive feedback topology is used to form a negative resistance load; in such a way, the DC gain of OTA is enhanced. Moreover, the linearity is improved by means of active biasing. AWR simulations in a 0.25μm SOI CMOS process with 2.5V power supply have shown that the cut-off frequency of the filter ranges from 120MHz to 280MHz and dynamic range is about 54dB. The total power consumption is only 32mW at 250MHz cut-off frequency.

AB - A 4 th-order Butterworth OTA-C lowpass filter based on voltage mode multiple loop feedback (MLF) inverse follow the leader feedback (IFLF) structure is implemented to support both MB-OFDM UWB and low data rate IR-UWB applications. The filter is implemented using a fully-differential linear operational transconductance amplifier (OTA) in 0.25μm SOI CMOS process. A positive feedback topology is used to form a negative resistance load; in such a way, the DC gain of OTA is enhanced. Moreover, the linearity is improved by means of active biasing. AWR simulations in a 0.25μm SOI CMOS process with 2.5V power supply have shown that the cut-off frequency of the filter ranges from 120MHz to 280MHz and dynamic range is about 54dB. The total power consumption is only 32mW at 250MHz cut-off frequency.

UR - https://www.scopus.com/pages/publications/84867302580

U2 - 10.1109/MWSCAS.2012.6291965

DO - 10.1109/MWSCAS.2012.6291965

M3 - Conference contribution

AN - SCOPUS:84867302580

SN - 9781467325264

SP - 93

EP - 96

BT - 2012 IEEE 55th International Midwest Symposium on Circuits and Systems, MWSCAS 2012

T2 - 2012 IEEE 55th International Midwest Symposium on Circuits and Systems, MWSCAS 2012

Y2 - 5 August 2012 through 8 August 2012

ER -

An OTA-C filter in SOI CMOS for UWB application

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