A 1.3V 26mW 3.2GS/s Undersampled LC Bandpass Sigma-Delta ADC for a SDR ISM-band Receiver in 130nm CMOS

Abstract : This paper presents the implementation of an undersampled LC bandpass SigmaDelta ADC with a raised-cosine feedback DAC. It directly converts after the LNA a signal centered in the ISM band at 2.442 GHz with a sampling frequency of 3.256 GHz. This circuit has been fabricated in a 130 nm CMOS process, it occupies an area of 0.27 mm2 and is operating at a supply voltage of 1.3 V. The Signal-to-Noise and Distortion Ratios measured are 34 dB, 37dB and 42 dB for respective bandwidths of 25 MHz, 10 MHz and 1 MHz. The power consumption of the SigmaDelta ADC is 26 mW and its figure of merit is 2.3 pJ/bit.
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Submitted on : Wednesday, March 30, 2016 - 2:15:31 PM
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Nicolas Beilleau, Hassan Aboushady, Franck Montaudon, Andreia Cathelin. A 1.3V 26mW 3.2GS/s Undersampled LC Bandpass Sigma-Delta ADC for a SDR ISM-band Receiver in 130nm CMOS. RFIC IEEE Radio Frequency Integrated Circuits Symposium, Jun 2009, Boston, MA, United States. IEEE, RFIC IEEE Radio Frequency Integrated Circuits Symposium, pp.383-386, 〈10.1109/RFIC.2009.5135563〉. 〈hal-01295134〉

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