Using LT Spice tools, design and perform a first-order sigma-delta modulator simulation. (KEY IJP************848)

• Wael Saad Ahmed

Abstract

A single-phase Sigma-Delta ADC with a first-order rectifier and switched capacitors is proposed. The first low-power production ADC application provides a 1-bit Sigma-Delta data transfer capability to recognize a 10 MHz input signal. The ADC is a function of this circuit. Design, simulation, and analysis of a 1-bit (L-1") first-order Sigma-Delta modulator using a 1.8 V, 250 nm CMOS power supply from LTspice The robustness, high performance, and stability show better performance, the current and sigma-delta areas are smaller, and the simulation is compared with the conventional ADC simulation.