Title | ||
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A 900-MHz bandwidth analog baseband circuit with 1-dB step and 30-dB gain dynamic range |
Abstract | ||
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A wide-bandwidth analog baseband circuit with digital gain control is implemented in a 65-nm CMOS process. The proposed circuit adopts a variable transconductance amplifier, which achieves constant bandwidth regardless of the gain settings. Bandwidth variation is less than ±1.2 % within the gain control range of 20 dB. The proposed analog baseband circuit has in-phase and quadrature-phase paths and draws 24.8 mA from a 1.2-V power supply. Measured results show that 1-dB step gain control with 0.25-dB differential nonlinearity (DNL) for 30-dB range and I/Q gain matching accuracy of 0.15 dB is achieved. |
Year | DOI | Venue |
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2010 | 10.1109/ESSCIRC.2010.5619744 | Seville |
Keywords | DocType | ISSN |
cmos integrated circuits,amplifiers,analogue circuits,gain control,cmos process,differential nonlinearity,digital gain control,frequency 900 mhz,gain 1 db,gain 30 db,quadrature-phase paths,variable transconductance amplifier,wide-bandwidth analog baseband circuit,frequency control,gain,dynamic range,baseband | Conference | 1930-8833 |
ISBN | Citations | PageRank |
978-1-4244-6662-7 | 6 | 1.23 |
References | Authors | |
1 | 3 |
Name | Order | Citations | PageRank |
---|---|---|---|
Hosoya, M. | 1 | 6 | 1.23 |
Toshiya Mitomo | 2 | 78 | 19.84 |
Watanabe, O. | 3 | 6 | 1.23 |