1,721,027 research outputs found
High Linearity Down-Conversion CMOS Mixers
No full textThis paper gives a quantitative analysis of the main mechanisms setting fundamental limits to the linearity performances of CMOS direct down-conversion mixers. An advanced low voltage solution is proposed for 3G cell-phones in a 90 nm CMOS technology that achieves: 3nV/radicHz average input referred noise in the band from 10 kHz to 1.92 MHz, a flicker noise corner of 300 kHz, 9 dBm IIP3 and 75 dBm minimum IIP2 while drawing 5.4 mA from a 1.2 V supply
A broadband low-noise single-ended input differential output amplifier with IM2 cancelling
Full text linkA broadband single-ended input differential output low noise amplifier exploiting IM2 cancelling has been designed in a 90 nm CMOS technology. A feedback path from the common mode output to the input effectively cancels the second order distortion products with negligible effect on the noise performance. The measured IIP2 varies from 17 dBm with the feedback disabled to 35 dBm when the feedback is enabled. Measured gain and noise figure are respectively 10 dB and 5 dB on a single output with 50 Omega load while dissipating 7.5 mW
Design Considerations on Ultra-Low-Power Wireless Transmitters for Wearable Medical Devices
No full textIntroduction to the Special Section on the 2016 Radio Frequency Integrated Circuits (RFIC) Symposium
No full textA Low-Noise Active Balun with IM2 Cancelation for Multiband Portable DVB-H Receivers
No full textA single-ended input, differential-output low-noise amplifier is described in this paper that can achieve broadband impedance matching, low noise and high IIP2 at the same time. The amplifier was integrated in a 90nm CMOS technology and occupies less than 0.075mm^2. The overall current consumption is 6.5mA from 1.2V supply. It achieves NF of 3.5dB (28dBm
Multimode Reconfigurable Wireless Terminals: a First Step Toward Software Defined Radio
No full textMultimedia applications create the need for multi-mode handsets that support many standards with different frequency, bandwidth, modulation etc. Sharing and/or switching blocks in these handsets are used to extend battery life and/or reduce cost. Furthermore adaptive circuits that can reconfigure themselves within the handover time will enable seamless interoperability over several standards with a single receiver/transmitter. This paper presents RF and analog baseband circuits that are able to support GSM (with Edge), WCDMA (UMTS), WLAN and Bluetooth using reconfigurable building blocks. They can trade power consumption for performance on the fly, depending on the standard and the required quality of service. Experimental measurements in a 0.13 mum CMOS technology are presented and discussed
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