Abstract
A low-voltage high-frequency CMOS fully-balanced filtering technique is presented. The low internal voltage characteristic of current-mode circuits allows the operation at power supply voltages as low as 3-V with high dynamic range. The integrator time-constant is determined by a MOSFET small-signal transconductance and an additional non-critical MOSFET gate capacitance. For ladder filters derived from doubly-terminated LC prototypes, HSPICE simulations predict a -3-dB bandwidth of 125 MHz for a three-pole lowpass filter. Power dissipation is 6 mW/pole with a 3-V power supply.
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© 1995 Springer Science+Business Media New York
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Allstot, D.J., Zele, R.H. (1995). Current-Mode Continuous-Time Filters. In: van de Plassche, R.J., Sansen, W.M.C., Huijsing, J.H. (eds) Analog Circuit Design. Springer, Boston, MA. https://doi.org/10.1007/978-1-4757-2353-3_12
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DOI: https://doi.org/10.1007/978-1-4757-2353-3_12
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