A 2 V 0.25 μm CMOS 250 MHz fully-differential seventh-order equiripple linear phase LF filter

M. Hasan; Y. Sun

doi:10.1109/ISCAS.2005.1465996

A 2 V 0.25 μm CMOS 250 MHz fully-differential seventh-order equiripple linear phase LF filter

M. Hasan, Y. Sun

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

13 Citations (Scopus)

47 Downloads (Pure)

Abstract

A fully-differential seventh-order 0.05° equiripple linear phase low-pass filter based on multiple loop feedback (MLF) leapfrog (LF) topology is presented for read/write channels. The filter is designed and simulated with a fully balanced, highly linear operational transconductance amplifier (OTA). The proposed OTA contains two complementary differential cross-coupled input pairs and a pair of regulated cascode outputs in order to achieve both low-distortion and wide dynamic range in high-frequency operation. Simulations in 0.25 μm CMOS show that the cutoff frequency of the low pass filter without and with gain boost ranges from 50 to 150 MHz and 65 to 250 MHz respectively, dynamic-range is over 65 dB and total harmonic distortion is less than 40 dB. The group delay ripple is less than 5% for frequencies up to 1.5 times the cutoff frequency, and for a 2-volt power supply, the maximum power consumption is 216 mW.

Original language	English
Title of host publication	IEEE Int Symposium on Circuits and Systems, ISCAS 2005
Publisher	Institute of Electrical and Electronics Engineers (IEEE)
Pages	5958-5961
ISBN (Print)	0-7803-8834-8
DOIs	https://doi.org/10.1109/ISCAS.2005.1465996
Publication status	Published - 2005

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@inproceedings{b5bf92d02313473f814e254055c9a46e,

title = "A 2 V 0.25 μm CMOS 250 MHz fully-differential seventh-order equiripple linear phase LF filter",

abstract = "A fully-differential seventh-order 0.05° equiripple linear phase low-pass filter based on multiple loop feedback (MLF) leapfrog (LF) topology is presented for read/write channels. The filter is designed and simulated with a fully balanced, highly linear operational transconductance amplifier (OTA). The proposed OTA contains two complementary differential cross-coupled input pairs and a pair of regulated cascode outputs in order to achieve both low-distortion and wide dynamic range in high-frequency operation. Simulations in 0.25 μm CMOS show that the cutoff frequency of the low pass filter without and with gain boost ranges from 50 to 150 MHz and 65 to 250 MHz respectively, dynamic-range is over 65 dB and total harmonic distortion is less than 40 dB. The group delay ripple is less than 5% for frequencies up to 1.5 times the cutoff frequency, and for a 2-volt power supply, the maximum power consumption is 216 mW.",

author = "M. Hasan and Y. Sun",

note = "“This material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by each author's copyright. In most cases, these works may not be reposted without the explicit permission of the copyright holder.{"} “Copyright IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.”",

year = "2005",

doi = "10.1109/ISCAS.2005.1465996",

language = "English",

isbn = "0-7803-8834-8",

pages = "5958--5961",

booktitle = "IEEE Int Symposium on Circuits and Systems, ISCAS 2005",

publisher = "Institute of Electrical and Electronics Engineers (IEEE)",

address = "United States",

}

TY - GEN

T1 - A 2 V 0.25 μm CMOS 250 MHz fully-differential seventh-order equiripple linear phase LF filter

AU - Hasan, M.

AU - Sun, Y.

N1 - “This material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by each author's copyright. In most cases, these works may not be reposted without the explicit permission of the copyright holder." “Copyright IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.”

PY - 2005

Y1 - 2005

N2 - A fully-differential seventh-order 0.05° equiripple linear phase low-pass filter based on multiple loop feedback (MLF) leapfrog (LF) topology is presented for read/write channels. The filter is designed and simulated with a fully balanced, highly linear operational transconductance amplifier (OTA). The proposed OTA contains two complementary differential cross-coupled input pairs and a pair of regulated cascode outputs in order to achieve both low-distortion and wide dynamic range in high-frequency operation. Simulations in 0.25 μm CMOS show that the cutoff frequency of the low pass filter without and with gain boost ranges from 50 to 150 MHz and 65 to 250 MHz respectively, dynamic-range is over 65 dB and total harmonic distortion is less than 40 dB. The group delay ripple is less than 5% for frequencies up to 1.5 times the cutoff frequency, and for a 2-volt power supply, the maximum power consumption is 216 mW.

AB - A fully-differential seventh-order 0.05° equiripple linear phase low-pass filter based on multiple loop feedback (MLF) leapfrog (LF) topology is presented for read/write channels. The filter is designed and simulated with a fully balanced, highly linear operational transconductance amplifier (OTA). The proposed OTA contains two complementary differential cross-coupled input pairs and a pair of regulated cascode outputs in order to achieve both low-distortion and wide dynamic range in high-frequency operation. Simulations in 0.25 μm CMOS show that the cutoff frequency of the low pass filter without and with gain boost ranges from 50 to 150 MHz and 65 to 250 MHz respectively, dynamic-range is over 65 dB and total harmonic distortion is less than 40 dB. The group delay ripple is less than 5% for frequencies up to 1.5 times the cutoff frequency, and for a 2-volt power supply, the maximum power consumption is 216 mW.

U2 - 10.1109/ISCAS.2005.1465996

DO - 10.1109/ISCAS.2005.1465996

M3 - Conference contribution

SN - 0-7803-8834-8

SP - 5958

EP - 5961

BT - IEEE Int Symposium on Circuits and Systems, ISCAS 2005

PB - Institute of Electrical and Electronics Engineers (IEEE)

ER -

A 2 V 0.25 μm CMOS 250 MHz fully-differential seventh-order equiripple linear phase LF filter

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