Title :
A 90nm CMOS Variable-Gain Amplifier and RSSI Design for Wide-band Wireless Network Application
Author :
Hui Teo, T. ; Annamalai Arasu, M. ; Wooi Gan Yeoh ; Itoh, Masaaki
Author_Institution :
Inst. of Microelectron., Singapore
Abstract :
A VGA (variable-gain amplifier) integrated with RSSI (received signal strength indicator) function is designed and implemented in a 90nm CMOS technology. Employing closed-loop amplifier, the VGA chain achieves 500MHz bandwidth with 45dB variable gain. The IIP3 (third order input referred intercept point) of the VGA is measured to be as high as 19dBm, meanwhile the NF (noise figure) is 16dB. The RSSI linear range is approximately 65dB for plusmn0.3dB linearity error. The VGA chain consumes 13mA from 2.5V single supply voltage. The test chip active area is 650 mum times 550 mum
Keywords :
CMOS integrated circuits; amplification; amplifiers; broadband networks; 13 mA; 16 dB; 2.5 V; 45 dB; 500 MHz; 90 nm; CMOS variable-gain amplifier; RSSI design; closed-loop amplifier; received signal strength indicator function; third order input referred intercept point; wide band wireless network application; Bandwidth; Broadband amplifiers; CMOS technology; Gain; Linear approximation; Noise figure; Noise measurement; Semiconductor device measurement; Signal design; Wireless networks;
Conference_Titel :
Solid-State Circuits Conference, 2006. ESSCIRC 2006. Proceedings of the 32nd European
Conference_Location :
Montreux
Print_ISBN :
1-4244-0303-0
DOI :
10.1109/ESSCIR.2006.307537
