- - DAC DUAL-STRING DIGITAL-TO-ANALOG CONVERTERS DACs AND RELATED CIRCUITS SYSTEMS AND METHODS

摘要

Dual-string digital-to-analog converters (DACs), and related circuits, systems, and methods are disclosed. In the embodiments disclosed herein, the main voltage divider of the dual-string DAC consists of at least one regulating circuit. The regulating circuit is configured to maintain the ideal voltage of the selected resistor node pair across the auxiliary voltage divider circuit in response to the main switch unit selecting the selected resistor node pair. In this way, impedance separation between the main and auxiliary voltage divider circuits of the dual-string DAC is not required. Consequently, as a non-limiting example, the area on an integrated circuit (IC) for a dual-string DAC can be reduced, the power consumption of the DAC can be reduced, and / or the dual- / RTI