Title :
Switched-capacitor filter based on unity gain buffer for high speed analog signal processing applications
Author :
Eltokhy, Mostafa A R
Author_Institution :
Electron. Technol. Dept., Helwan Univ., Cairo, Egypt
fDate :
Nov. 29 2011-Dec. 1 2011
Abstract :
In this paper a new voltage buffer to realize high speed and low power dissipation switched-capacitor filters is proposed. The drain-follower achieves 300MHz bandwidth with 2pF load; DC gain of 0.993V/V, 1mV offset voltage, -60 dB total harmonic distortion at 0.4 VPP output voltage and 58.5μW power dissipation from 1.5V supply. A unity-gain buffer switched-capacitor biquad filter has been implemented in 0.5μm CMOS technology. The circuit has been sending for fabrication. Simulation results of the biquad filter indicate operation at 100 MHz with 6mW power consumption from a 1.5 V supply can be achieved.
Keywords :
CMOS integrated circuits; biquadratic filters; low-power electronics; signal processing; switched capacitor filters; CMOS technology; analog signal processing application; bandwidth 300 MHz; drain-follower; frequency 100 MHz; low power dissipation switched-capacitor filter; power 58.5 muW; size 0.5 mum; unity gain buffer; unity-gain buffer switched-capacitor biquad filter; voltage 0.4 V; voltage 1.5 V; voltage buffer; Clocks; Impedance; Integrated circuit modeling; Logic gates; Switches; Switching circuits; Transistors; analog signal processing; high speed; switched-capacitor; unity gain buffer;
Conference_Titel :
Computer Engineering & Systems (ICCES), 2011 International Conference on
Conference_Location :
Cairo
Print_ISBN :
978-1-4577-0127-6
DOI :
10.1109/ICCES.2011.6141031
