A CMOS filter+integrator baseband chain embedded in a UWB receiver is implemented in a 0.18μm CMOS technology at 1.8V. The 3rd-order LP filter cut-off frequency (fo) and dc-gain (G) can be tuned from 250MHz up to 1GHz and from 0dB up to 15dB, respectively. The filter power consumption is limited to 3.2mW in the most stringent conditions, i.e. f o=1GHz, and 15 dc-gain. Forfo=250MHz and unitary dc-gain, the power consumption is reduced to 210μW. These results are obtained by using a very compact circuit design that allows to avoid parasitic poles and common-mode feedback circuit. With a similar structure, a G>60dB and UGB=1GHz integrator has been realized, which consumes with 120μW.
D'Amico, S., Ryckaert, J., Baschirotto, A. (2006). A up-to-1GHz low-power baseband chain for UWB receivers. In ESSCIRC 2006 - Proceedings of the 32nd European Solid-State Circuits Conference (pp.263-266). IEEE [10.1109/ESSCIR.2006.307581].
A up-to-1GHz low-power baseband chain for UWB receivers
BASCHIROTTO, ANDREA
2006
Abstract
A CMOS filter+integrator baseband chain embedded in a UWB receiver is implemented in a 0.18μm CMOS technology at 1.8V. The 3rd-order LP filter cut-off frequency (fo) and dc-gain (G) can be tuned from 250MHz up to 1GHz and from 0dB up to 15dB, respectively. The filter power consumption is limited to 3.2mW in the most stringent conditions, i.e. f o=1GHz, and 15 dc-gain. Forfo=250MHz and unitary dc-gain, the power consumption is reduced to 210μW. These results are obtained by using a very compact circuit design that allows to avoid parasitic poles and common-mode feedback circuit. With a similar structure, a G>60dB and UGB=1GHz integrator has been realized, which consumes with 120μW.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.