The 5-bit 17-level current-steering DAC feedback circuit

Source publication

A 4th-order single-bit CT Delta-Sigma modulator designed with Gm-C...

The extracted feedback current as a function of the integrator output...

The behavioral simulation model for the CT Delta-Sigma modulator with...

PSD comparison of the modulator with single-bit DAC feedback (with...

Analysis of effect of feedback current variation in CT Delta-Sigma modulators with Gm-C integrators

Article

Full-text available

Dec 2017

Hua Tang

In design of Continuous-time Delta-Sigma modulators, the feedback DAC (Digital-to-Analog Converter) is typically implemented with a switched current circuit. It is desired that these DAC current circuits provide constant current across clock cycles for each modulator output level. However, when Delta-Sigma modulators are implemented with Gm-C integ...