A 4th-Order Low-Power Gm-C Lowpass Filter for Bluetooth Receivers

A 4th-order low-power Gm-C lowpass filter suitable for bluetooth receivers with direct-conversion scheme is designed. For the filter to become low-power, inverter-basedtransconductors with suitable common-mode feedback and feed forward circuitries are used. In order to compensate theprocess variation effects, one of the newest automatic tuning methods called bulk-tuning is employed. With a 1.3V supply voltage, this filter consumes 1.2 mWatts and the IIP3 of 12.34 dBm with flat pass-band frequency response and near -80 dB/dec stop-band gain reduction slope.

کلیدواژه ها:

Bluetooth ، bulk-tuning ، direct-conversion ، Gm-C ، low-power