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十二位数模转换集成电路是精确地把离散的数字量转换成连续的模拟量的电路,其转换精度可达0.012%.由于计算机自动控制和数字通讯的飞速发展,如何将测得的模拟量高精度地转换成数字量,然后把计算后的数字量再转换成模拟量,对实际操作系统进行反馈控制,这是人们十分关注并积极研究的重要课题.国外数模转换电路最高已做到了十六位精度、十八位分辨率,我国过去研制成的仅为十位精度、十位分辨率.十二位数模转换电路的研制,就是要把现有的精度和分辨率提高到十二位.
The 12-bit digital-to-analog integrated circuit is a circuit that accurately converts discrete digital quantities into continuous analog quantities with a conversion accuracy of up to 0.012% .Due to the rapid development of computer automation and digital communications, The amount of high-precision conversion into digital, and then convert the calculated digital into analog, the actual operating system for feedback control, which is very concerned about and actively study the important issue. Foreign digital-analog conversion circuit has been done To the 16-bit resolution, 18-bit resolution, our country in the past developed only 10-bit resolution, resolution of 10. Twelve digital-analog conversion circuit development is to improve the existing accuracy and resolution Twelve.