Continuous-Time Delta-Sigma Modulator with Capacitive Feed-ins

A method comprising:

• providing a circuit including a continuous-time delta-sigma modulator (CTDSM) including one or more integrators and including one or more of a feed-forward loop or a feedback loop and including one or more capacitive feed-ins, each capacitive feed-in coupled to one of the one or more integrators;
• determining coefficients for one or more of the feed-forward loop, the feedback loop, or the one or more capacitive feed-ins to produce a selected signal transfer function;
• and
• synthesizing the circuit with the determined coefficients to produce the CTDSM with a selected signal transfer function.

A circuit comprising:

• a continuous-time delta-sigma modulator (CTDSM) including a one or more integrators and including one or more of a feed-forward loop or a feedback loop;
• and
• a one or more capacitive feed-ins, each capacitive feed-in coupled to an output of one of the one or more integrators;
• and
• wherein first coefficients of the one or more of the feed-forward loop or the feedback loop and second coefficients of the one or more capacitive feed-ins are selected to provide a selected signal transfer function for the CTDSM.