求IEEE文章

scy8080

A Low-Power Wideband Reconfigurable Integrated Active-RC Filter With 73 dB SFDR

In this paper, a low-power, highly linear, integrated, active-RC filter exhibiting a reconfigurable transfer function (Chebyshev, Elliptic) and bandwidth (5 MHz, 10 MHz), is presented. The filter exploits digitally-controlled polysilicon resistor banks and a digital automatic tuning scheme to account for process and temperature variations. The operational amplifiers used are based on a new compensation technique that allows optimized high-frequency filter performance and minimized current consumption. A filter prototype has been fabricated in a 0.12-mum CMOS process, occupies 0.25 mm2 (tuning circuit included), and achieves an IIP3 of approximately +20 dBm, whereas its spurious free dynamic range (SFDR) reaches 73 dB. The dissipation of the filter core and the tuning circuit is 4.6 mW and 1.5 mW, respectively

Published in:Solid-State Circuits, IEEE Journal of (Volume:41 ,  Issue: 9) Date of Publication:Sept. 2006
非常感谢

羊尾巴

帮楼主找到了……

markhorrow

非常感谢提供！

scy8080

非常感谢

scy8080

再求一篇文章
A Fourth Order Elliptic Low-Pass Filter with Wide Range of Programmable Bandwidth, Using Four Identical Integrators

A new method to implement elliptic filter with identical integrators and no derivatives is presented. Using identical capacitor arrays as opposed to highly spread capacitor arrays of conventional implementation makes elliptic filter design with wide range of programmable/tunable bandwidths extremely simple, time-efficient and accurate. The proposed method also reduces the die size while realizing elliptic filter more faithfully. To demonstrate the method, a fourth order elliptic filter with nine programmable bandwidths ranging from 1.1 MHz to 17.6 MHz is designed. The 1.75 mm2 filter draws 10 mA from 3.3 V supply at output swing of 4.0 V ppd in 0.35 um CMOS process to meet less than 50 nV radicHz in-band output-referred noise and SFDR of better than 80 dBc.

Published in:
Custom Integrated Circuits Conference, 2007. CICC '07. IEEE
Date of Conference:
16-19 Sept. 2007
非常感谢

ziv0819

不錯的文章~
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