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A programmable low voltage switched-current FIR filter

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3 Author(s)
F. A. Farag ; Dept. de Engenharia Eletrica, Univ. Fed. de Santa Catarina, Florianopolis, Brazil ; C. Galup-Montoro ; M. C. Schneider

In this paper we describe a 20 MHz sample rate switched-current finite impulse response (FIR) filter, suitable for equalizer architectures. The basic cell of the FIR filter is the switched-current (SI) sample-and-hold (S/H) circuit, appropriate for low voltage operation. The programmability of the FIR filter structure is achieved via MOSFET-only current dividers (MOCD). The FIR filter has been designed using the AMS 0.8 μm CMOS process. The power consumption per tap is 12 mW at ±1.5 V power supply

Published in:

Circuits and Systems, 1999. ISCAS '99. Proceedings of the 1999 IEEE International Symposium on  (Volume:2 )

Date of Conference:

Jul 1999