This user's guide describes the characteristics, operation, and use of the ADS1256EVM. This EVM is an? evaluation fixture for the ADS1256 24-bit delta-sigma ( Δ Σ ) analog-to-digital converter (ADC). The?? ADS1256EVM is designed for prototyping and evaluation. It also serves as an evaluation platform for the?? ADS1255 , which is a proper subset of the ADS1256. A complete circuit description, schematic diagram. and bill of materials are included. Throughout this document, the abbreviation EVM and the term? evaluation module are synonymous with the ADS1256EVM.