Abstract: Digital-to-analog converters (DACs) are crucial modules in System-on-Chip (SoC). This paper proposes a high-speed, high-precision DAC design for SoC. The design utilizes a current-driven structure, implemented using SMIC 0.18μm CMOS technology, achieving a 10-bit resolution and a maximum sampling rate of 300MS/s. At a sampling rate of 200MS/s and an input signal of 20.8MHz, the DAC's spurious-free dynamic range (SFDR) reaches 66.27dB, with a total power consumption of only 22.7mW. Keywords: Digital-to-analog converter; System-on-chip; Spurious-free dynamic range; High speed 1 Introduction System-on-chip (SoC) represents a significant direction in integrated circuit development. Due to the numerous advantages of digital signal processing and the recent improvements in the performance and cost reduction of digital integrated circuits, digital circuits are playing an increasingly important role in SoC systems. Since the conversion of digital signals into corresponding physical quantities in the real world is always necessary, digital-to-analog converters (DACs) have become indispensable modules in SoC systems. With the continuous increase in digital signal processing speed, the demand for high-speed DACs in SoC systems is becoming increasingly urgent. High-speed DACs are widely used in many fields such as communication, measurement, automatic control, and multimedia, and their performance has a significant impact on the overall system performance. The design of a high-speed DAC is crucial for achieving a high-performance SoC system. This paper utilizes the deep submicron CMOS process widely used in SoC chips to implement a 10-bit high-speed DAC. This DAC can be used as an IP core in SoC designs and reused in system designs across various application areas. For details, please click: Design of a High-Speed ​​Digital-to-Analog Converter for SoC