The simulation results in this thesis indicate that , its settling - time to full swing is 15ns with 3v supply , the total static power dissipation is less than 50mw , the differential nonlinearity error is 0 . 58lsb , the integral nonlinearity error is 0 . 54 lsb , spurious free dynamic range is more than 60db , and the output current can be adjusted 本课题设计的数模转换器性能指标为:工作电压3v ,建立时间15ns ,微分非线性误差0 . 58lsb ,积分非线性误差0 . 54lsb , sfdr高于60db ,总功耗不到50mw ,输出电流可调。设计成果可应用于数据处理和控制系统电路中,具有一定的先进性和实用价值。
The thesis includes the design of hard circuit , pcb ( printed circuit board ) , driver and application soft involving a / d board and d / a board . the detailed functional modules consist of multiplex signals select module 、 analog digital conversion module 、 digital analog conversion module 、 pci protocol conversion module 、 driver and magnifying module 、 control logic 、 clock circuit and configuration circuit . the importance of the thesis is a / d board 本课题包括硬件电路、印刷电路板( pcb ) 、驱动程序和应用软件的设计，涉及a / d板和d / a板两大块部分，具体的功能模块包括多路信号选择模块、模数转换模块、数模转换模块、 pci协议转换模块、驱动放大模块、控制逻辑、时钟电路和配置电路，其中重点是a / d板部分。
