DocumentCode :
3410956
Title :
A high performance CMOS feedforward AGC circuit for wideband wireless receivers
Author :
Alegre, J.P. ; Calvo, B. ; Celma, S.
Author_Institution :
Electron. Design Group (I3A), Univ. of Zaragoza, Zaragoza
fYear :
2008
fDate :
June 30 2008-July 2 2008
Firstpage :
1657
Lastpage :
1661
Abstract :
This paper presents a fast settling compact feedforward automatic gain control (AGC) suitable for use in wireless communication systems such as WLAN or Bluetooth receivers where the use of traditional closed loop feedback amplifiers forms a boundary due to the stringent settling time constraints. The AGC has been implemented in a 0.35 mum standard CMOS technology. Supplied at 1.8 V, it operates with a power consumption of 1.6 mW at frequencies as high as 100 MHz, while its gain ranges from 0 to 21 dB in 3 dB steps through a 4-bit word. The settling time of the circuit is below 0.25 mus.
Keywords :
CMOS integrated circuits; automatic gain control; feedforward; radio receivers; wireless LAN; Bluetooth receivers; WLAN; automatic gain control; closed loop feedback amplifiers; high performance CMOS feedforward AGC circuit; wideband wireless receivers; wireless communication systems; Bluetooth; CMOS technology; Circuits; Energy consumption; Feedback amplifiers; Gain control; Time factors; Wideband; Wireless LAN; Wireless communication;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Industrial Electronics, 2008. ISIE 2008. IEEE International Symposium on
Conference_Location :
Cambridge
Print_ISBN :
978-1-4244-1665-3
Electronic_ISBN :
978-1-4244-1666-0
Type :
conf
DOI :
10.1109/ISIE.2008.4677063
Filename :
4677063
Link To Document :
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