4.5 System noise performance for low-speed delta-sigma ADCs
This presentation covers how to use your system noise requirements to choose an ADC. In previous Precision Lab modules, we covered the types of ADC noise, how ADC noise is measured and specified, and the differences between relative and absolute noise parameters. This module will apply that information to an application example using a common sensor type and several low speed delta-sigma ADCs. We will walk through this example using relative and absolute noise parameters to understand the benefits and challenges of each. While this process is more specific to low speed delta-sigma ADCs, some of the general principles such as resolution loss and determining system specifications can be applied to wide bandwidth delta-sigma and SAR ADCs as well.