High-Performance Digital-to-Analog Converter (DAC) Chip Technology
01. Overview of Achievements
The Digital-to-Analog Converter (DAC) is essential for converting digital signals into analog signals, making it a core general-purpose chip. High-speed, high-precision DACs are widely used in broadband communications, especially in high-performance military and civilian applications such as radar and 5G communications. High-performance data converters can effectively reduce system complexity and costs, enhance anti-interference capabilities and communication quality, and improve channel capacity and transmission speed. Key performance indicators for evaluating high-speed DACs mainly include accuracy (which determines the number of significant bits), sampling rate (which determines the maximum bandwidth of the signal that can be converted), and dynamic range (which determines whether small signals and distorted signals can be distinguished); the higher these indicators, the better. Currently, high-speed, high-precision DAC products are primarily monopolized by Analog Devices, Inc. (ADI) and Texas Instruments (TI) in the United States.
This achievement has designed and implemented a DAC chip with 14-bit accuracy, which in actual tests can support a sampling rate of over 3.0 GS/s, with a dynamic range exceeding 72 dB when converting a 422 MHz signal. In contrast, the current embargo indicators for this type of high-speed, high-precision DAC chip from Europe and the United States to China are 12 bits, 1.25 GS/s, and a dynamic range of 68 dB when converting a 100 MHz signal. This achievement is significant for breaking foreign technology blockades and promoting the independent design and industrialization of this type of high-performance chip.
02. Application Prospects
This technology can be widely applied in various fields such as broadband wired communications, mobile communications, radar, sonar, instrumentation, and medical systems.
03. Intellectual Property
This achievement has applied for 13 related invention patents.
04. Team Introduction
The team behind this achievement has long been dedicated to research in analog and mixed-signal integrated circuits, micro-system (SoC) chip structures, etc. The main members of the team include Professor Yang Huazhong and Assistant Professor Li Xueqing from the Department of Electronics at Tsinghua University, and doctoral students, who have published over 400 papers and applied for more than 100 patents in this field.
05. Cooperation Methods
Investment and financing / Patent licensing.
06. Contact Information
Phone: 010-62798352, 62789670
Email: [email protected]
Achievement Number: 0095
