A two-stage differential-ramp based continuous-tuning IF VGA is introduced. The design has a bandwidth in excess of 100 MHz consuming 5-mA from a 1.2-V supply. The ramp generation circuit consumes ...

In this paper, a novel variable-gain amplifier (VGA) and a novel voltage-controlled ring oscillator (VCRO) are proposed. The two proposed schemes depend on the same controlled inverter unit with a ...