A Wideband 400 MHz-to-4 GHz Direct RF-to-Digital Multimode $\Delta\Sigma$ Receiver

@article{Wu2014AW4,
  title={A Wideband 400 MHz-to-4 GHz Direct RF-to-Digital Multimode \$\Delta\Sigma\$  Receiver},
  author={Charles Wu and Elad Alon and Borivoje Nikolic},
  journal={IEEE Journal of Solid-State Circuits},
  year={2014},
  volume={49},
  pages={1639-1652}
}
A wide-tuning-range low-power sigma-delta-based direct-RF-to-digital receiver architecture is implemented in 65 nm CMOS. A flat signal transfer function is chosen to support wide-frequency-range radios. A multilevel (two-bit) nonreturn-to-zero DAC improves jitter immunity to enable a high dynamic range, and, with a class-AB low-noise transconductance… CONTINUE READING