High-performance 8-bit modulator used for Sigma-Delta Analog to Digital Converter

Abstract

Modulator is one of the most significant building-blocks of analog Very Large Scale Integration (VLSI) used for Sigma-Delta Analog to Digital Converter (ADC). For high-performance analog circuit applications area and power consumption are the most important parameters to determine the performance of the modulator. Our design consumes only 1.16 mW of power at a supply voltage of 3V. Eventually the core chip size of the modulator without bonding pads is 76 μm × 110 μm by using the AMS 0.35 μm CMOS technology.