Not only are delta-sigma techniques at the root of many of today’s analog-to-digital converters (ADC) and digital-to-analog converters (DAC), what they reveal about the relationship between sample rate, bandwidth, and resolution lies near the heart of the multirate techniques popular in modern digital signal processing (DSP) systems.
This multi-part series of tutorials will work its way from the basics of delta-sigma data converters to more advanced techniques, with an approach that values intuition as much as math. The series is a work in progress, so please subscribe via Atom or RSS or check back regularly for future installments.
- Part 1: Introducing the Delta Sigma Modulator (31-May-2011)
- Part 2: The Anti-Aliasing Advantage (23-July-2011)
- Part 3: The controls-system perspective (4-July-2012)