This article is the last in a brief overview of the inner workings of delta-sigma ADCs. You have seen how the modulator operates in the time and the frequency domains and how it shapes the ...

This in-depth article covers the theory behind a Delta-Sigma analog-to-digital converter (ADC). It specifically focuses on the difficult to understand key digital concepts of over-sampling, noise ...

The requirement of effective analog to digital conversion and accuracy gives growth to converters. The sigma delta modulator have a salient feature of shaping the noise, such that noise reduces from ...

Based on the amount of e-mail I received after Part 3 of this series (Nov. 7, 2008, p. 18; www.electronicdesign.com, ED Online 19948), many of you have already guessed that an incremental integrator ...

Analog Devices has introduced a wideband analogue-to-digital converter (ADC) which it claims does not have the noise-level penalties usually attributed to multi-MHz bandwidth ADCs. The design is based ...

My last column showed how a single-stage delta-sigma modulator (DSM) produces an output that is a sum of the low pass-filtered input signal and the high pass-filtered quantization noise (see “Part 4,” ...