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۱A Linearly Tuneable Ultra Low Power CMOS Transconductor with Its Application to Gm–C Filters
نویسنده(ها): ،
اطلاعات انتشار: بیستمین کنفرانس مهندسی برق ایران، سال
تعداد صفحات: ۶
A fully CMOS gm block for low voltage, low power, and wide tuning range is presented in this paper. The relative tuning range of 25 is achieved in thistransconductor while only consumes 318 μW with 1.2 V supply voltage in TSMC 0.18 μm CMOS process. The wide tuning range transconductor would be appropriate formulti–mode direct conversion receivers. This wide tuning range transconductor is used in the third order channelselection Butterworth filter to show a good tuning range from 500KHz to 10 MHz which covers several communication standards, such as Bluetooth (650 kHz),cdma2000 (700 kHz), Wideband CDMA (2.2 MHz), IEEE 802.11a\g (10 MHz). The wide tuning range has been achieved without using switchable components orprogrammable building blocks. It is achieved by changing the bias current.<\div>
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