Low-Voltage Wide-Bandwidth CDBA and Its Application to Current-Mode Ladder Filters

Abstract

In this paper, a design of.current differencing buffered amplifier (CDBA) for low-voltage applications is presented. The proposed CDBA is simple and is designed to operate with a minimum power supply of 2 volts. The PSPICE simulation results demonstrating the circuit performance are included. Some design procedures using this CDBA as an active element in the leapfrog simulation of high frequency current~mode ladder filters are also introduced.