VLSI Implementation of a Digitally Tunable Gm-C Filter with Double CMOS Pair

This paper proposes a modified, inverter based transconductor using double CMOS pair for implementation of Gm-C filters . The advantage of this scheme is that, instead of varying the power supply, the bias voltages at high impedance nodes are varied for frequency (F) tuning. A current steering DAC is proposed for controlling these bias voltages. Another… CONTINUE READING