LOW-VOLTAGE INTEGRATORS FOR HIGH-FREQUENCY CMOS FILTERS USING CURRENT-MODE TECHNIQUES

Low voltage CMOS fully differential integrators for high frequency con tinuous-time filters using current-mode techniques are presented, Curr ent mode techniques are employed to avoid the use of the floating diff erential pair, in order to achieve operation at lower supply voltage l evels, These high frequency integrators feature good supply noise reje ction and power efficiency. Simulated and experimental results are pre sented verifying theoretical results. An example 10 MHz, 6 pole filter fabricated in 2 mu m CMOS consumes only 0.7mW/pole and requires only a single 3.3 V supply voltage.