This 24-bit, 128Ksps Analog Front End (AFE) is engineered to meet the stringent demands of energy metering applications. Featuring a sigma-delta analog-to-digital converter (ADC), it ensures ultra-high precision in measuring electrical parameters. The design is implemented on the SMIC180nm technology node, providing robust performance and reliability across various conditions, making it a reliable choice for both residential and commercial energy metering solutions.