標題: A highly linear 125-MHz CMOS switched-resistor programmable-gain amplifier
作者: Hsu, CC
Wu, JT
電子工程學系及電子研究所
Department of Electronics Engineering and Institute of Electronics
關鍵字: distortion;programmable-gain amplifier (PGA);switched resistor;variable-gain amplifier (VGA)
公開日期: 1-Oct-2003
摘要: A highly linear programmable-gain amplifier (PGA) is fabricated using a 0.35-mum CMOS technology. High linearity and constant wide bandwidth are achieved by using a high-gain amplifier with low input impedance and resistor-network feedback. The voltage gain is varied by digitally controlling the input switched resistors. The distortion of a switched resistor has been analyzed using the Volterra series. The PGA has a voltage gain varying from 0 to 19 dB, while maintaining a constant bandwidth of 125 MHz. The third-order intermodulation distortion is -86 dB at 10 MHz. The circuit dissipates 21 mW from a 3.3-V supply.
URI: http://dx.doi.org/10.1109/JSSC.2003.817665
http://hdl.handle.net/11536/27489
ISSN: 0018-9200
DOI: 10.1109/JSSC.2003.817665
期刊: IEEE JOURNAL OF SOLID-STATE CIRCUITS
Volume: 38
Issue: 10
起始頁: 1663
結束頁: 1670
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