A Low-Power Wideband Reconfigurable Integrated Active-RC Filter With 73 dB SFDR
- 28 August 2006
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Journal of Solid-State Circuits
- Vol. 41 (9), 1997-2008
- https://doi.org/10.1109/jssc.2006.880616
Abstract
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, respectivelyKeywords
This publication has 20 references indexed in Scilit:
- Novel automatic tuning method of RC filters using a digital-DLL techniqueIEEE Journal of Solid-State Circuits, 2004
- A pseudo differential complex filter for bluetooth with frequency tuningIEEE Transactions on Circuits and Systems II: Analog and Digital Signal Processing, 2003
- Anti-blocker design techniques for MOSFET-C filters for direct conversion receiversIEEE Journal of Solid-State Circuits, 2002
- Design of low-voltage CMOS continuous-time filter with on-chip automatic tuningIEEE Journal of Solid-State Circuits, 2001
- A 50-MHz standard CMOS pulse equalizer for hard disk read channelsIEEE Journal of Solid-State Circuits, 1997
- Low-voltage analog filtersIEEE Transactions on Circuits and Systems I: Regular Papers, 1995
- Integrated continuous-time filter design - an overviewIEEE Journal of Solid-State Circuits, 1994
- Integrated continuous-time balanced filters for 16-b DSP interfacesIEEE Journal of Solid-State Circuits, 1993
- Circuit architectures for high linearity monolithic continuous-time filteringIEEE Transactions on Circuits and Systems II: Analog and Digital Signal Processing, 1992
- A new MOSFET-C universal filter structure for VLSIIEEE Journal of Solid-State Circuits, 1988