A Low Voltage High Frequency Programmable Gm-C Bandpass Filter


A low voltage high frequency CMOS continuous time band-pass filter with programmable center frequency and quality factor is presented. The operational transconductance amplifier (OTA) in this Gm-C filter design is implemented by a low-voltage simple cascode OTA. The transconductance can be digitally programmable. Simulations show that the center frequency can be tuned from 400 MHz to 1 GHz for a 2.0 pF capacitive load. This filter has been designed in a TSMC 0.18 mu digital process with 1.8 V power supplies and consumes around 32 mW of power.

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@article{Zhang2007ALV, title={A Low Voltage High Frequency Programmable Gm-C Bandpass Filter}, author={Jian-Qin Zhang and Kai-Hang Li and Ri-Yan Wang}, journal={2007 International Workshop on Anti-Counterfeiting, Security and Identification (ASID)}, year={2007}, pages={70-74} }