Rapid prototyping of higher order incremental ΣΔ-ADC topologies and NTFs

Finding a suitable topology and Noise-transfer-function for higher order Incremental Delta-Sigma ADCs is a complex task. Estimating the performance of the ADC taking the circuit nonidealities into account by simulation requires sophisticated modeling and significant computing resources. Even with complex models, taking into account all nonidealities is not possible. This work proposes a completely free configurable Incremental Delta-Sigma ADC which can be used to rapid prototype arbitrary NTF function up to 3^rd order on silicon. Measurement results illustrate the wide field of application of the ADC.