Simulation & performance analysis of various R2R D/A converter using various topologies

Abstract

This paper presents the study of R2R D/A converter using various topologies like CMOS, Transmission Gates (TG) and OP-AMP. For the sake of simplicity 4 bit input is taken. The R2R D/A converter consist of only two values of resistor R & 2R. By using the repetitive arrangement of precision resistor network in a ladder. The simulation of the R2R D/A converter has been done on the TANNER-EDA T-SPICE and the circuit verification has been done on S-EDIT on TANNER-EDA software package. Simulation results are included to demonstrate the results. The outcomes of simulation are fairly in agreement with the theoretical estimation.