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A 1 GHz, 40 mW fully integrated continuous-time second-order bandpass filter in GaAs technology

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1 Author(s)
Moughabghab, R. ; IEMN, Villeneuve d''Ascq, France

A Second-Order bandpass Gm-C filter with a 1 GHz center frequency is presented. The circuit features an independent control of the cutoff frequency and of the quality factor. The fully-differential integrators use a gain-enhancement technique, capable of increasing the basic transconductor open-loop DC gain to 52 dB. The filter has been fabricated in a digital 0.7 µm, GaAs MESFET process featuring 25 GHz fttransistors. It dissipates 40 mW from a single 1.9 V power supply.

Published in:

Solid-State Circuits Conference, 1997. ESSCIRC '97. Proceedings of the 23rd European

Date of Conference:

16-18 Sept. 1997