Low-voltage class AB switched-current technique

A low-voltage class AB technique for high-speed and medium-resolution switched-current (SI) signal processing is described. The technique essentially uses the basic class AB SI memory with error-neutralisation and dummy switch schemes to reduce output conductance and charge-injection errors. Simulated results of the balanced class AB memory and bilinear integrator operating at 100 MHz sampling frequency and 1.6 V supply indicates that precision better than 8 bits is entirely feasible over the extreme process and temperature corners