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In this paper, a second-order RF bandpass filter based on active inductor has been implemented in a 0.35 μm CMOS process. Issues related to the intrinsic quality factor and dynamic range of the CMOS active inductor are addressed. Tuned at 900 MHz with Q=40, the filter has 28-dB spurious-free-dynamic-range (SFDR) and total current consumption (including buffer stage) is 17 mA with 2.7-V power supply. Experimental results also show the possibility of using them to build higher order RF filter and voltage-controlled oscillator (VCO).
Published in:
Circuits and Systems II: Analog and Digital Signal Processing, IEEE Transactions on
(Volume:50
,
Issue:
12
)
Date of Publication: Dec. 2003
- Page(s):
- 942 - 949
- ISSN :
- 1057-7130
- INSPEC Accession Number:
- 7830388
- Digital Object Identifier :
- 10.1109/TCSII.2003.820235
- Product Type:
- Journals & Magazines
- Date of Current Version :
- 07 January 2004
- Issue Date :
- Dec. 2003
- Sponsored by :
- IEEE Circuits and Systems Society
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