Abstract
A novel single-stage second-order structure for Gm-C filters is presented. It allows ample reduction in hardware and thus power consumption. Moreover, due to exploiting otherwise parasitic poles, the structure allows much higher bandwidth than in conventional designs, be achieved. To verify effectiveness of new concept, and based on the new approach to implement second-order stages, a third-order and a fifth-order continuous-time low-pass filters were implemented. The filters fabricated in a 0.5μm CMOS process, achieved more than 430 MHz, -3dB bandwidth and less than -55dB THD for a 400 mVp-p 100 MHz input signal. All these accomplished with a factor of about four reduction in hardware and power. The bandwidth, output voltage swing, and dynamic range are far larger than those of any other CMOS low-pass filters thus far reported, which have bandwidth higher than 100 MHz.
| Original language | English |
|---|---|
| Pages (from-to) | 362-369 |
| Number of pages | 8 |
| Journal | AEU - International Journal of Electronics and Communications |
| Volume | 59 |
| Issue number | 6 |
| DOIs | |
| Publication status | Published - 2005 Sep 15 |
| Externally published | Yes |
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Keywords
- Continuous-time filters
- Integrated filters
- Variable gain amplifiers
ASJC Scopus subject areas
- Electrical and Electronic Engineering
- Computer Networks and Communications
Cite this
Novel single-stage second-order structure for low-pass wide-band low-power continuous-time filters. / Hadidi, Khayrollah; Eguchi, Keita; Ito, Mitsuyoshi; Sasaki, Masahiro; Oshima, Hiroyuki; Khoei, Abdollah.
In: AEU - International Journal of Electronics and Communications, Vol. 59, No. 6, 15.09.2005, p. 362-369.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Novel single-stage second-order structure for low-pass wide-band low-power continuous-time filters
AU - Hadidi, Khayrollah
AU - Eguchi, Keita
AU - Ito, Mitsuyoshi
AU - Sasaki, Masahiro
AU - Oshima, Hiroyuki
AU - Khoei, Abdollah
PY - 2005/9/15
Y1 - 2005/9/15
N2 - A novel single-stage second-order structure for Gm-C filters is presented. It allows ample reduction in hardware and thus power consumption. Moreover, due to exploiting otherwise parasitic poles, the structure allows much higher bandwidth than in conventional designs, be achieved. To verify effectiveness of new concept, and based on the new approach to implement second-order stages, a third-order and a fifth-order continuous-time low-pass filters were implemented. The filters fabricated in a 0.5μm CMOS process, achieved more than 430 MHz, -3dB bandwidth and less than -55dB THD for a 400 mVp-p 100 MHz input signal. All these accomplished with a factor of about four reduction in hardware and power. The bandwidth, output voltage swing, and dynamic range are far larger than those of any other CMOS low-pass filters thus far reported, which have bandwidth higher than 100 MHz.
AB - A novel single-stage second-order structure for Gm-C filters is presented. It allows ample reduction in hardware and thus power consumption. Moreover, due to exploiting otherwise parasitic poles, the structure allows much higher bandwidth than in conventional designs, be achieved. To verify effectiveness of new concept, and based on the new approach to implement second-order stages, a third-order and a fifth-order continuous-time low-pass filters were implemented. The filters fabricated in a 0.5μm CMOS process, achieved more than 430 MHz, -3dB bandwidth and less than -55dB THD for a 400 mVp-p 100 MHz input signal. All these accomplished with a factor of about four reduction in hardware and power. The bandwidth, output voltage swing, and dynamic range are far larger than those of any other CMOS low-pass filters thus far reported, which have bandwidth higher than 100 MHz.
KW - Continuous-time filters
KW - Integrated filters
KW - Variable gain amplifiers
UR - http://www.scopus.com/inward/record.url?scp=24144460558&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=24144460558&partnerID=8YFLogxK
U2 - 10.1016/j.aeue.2004.11.018
DO - 10.1016/j.aeue.2004.11.018
M3 - Article
AN - SCOPUS:24144460558
VL - 59
SP - 362
EP - 369
JO - AEU - International Journal of Electronics and Communications
JF - AEU - International Journal of Electronics and Communications
SN - 1434-8411
IS - 6
ER -