ADS7864 is 12-bit,6-channel analog input A/D converter by Burr-Brown. Its inner structure, operation mode and the key of programming are introduced. In addition,application of ADS7864 in the harmonic analyzer and its interface with DSP are also presented.

• ADS7864是Burr-Brown公司开发的12位6通道A/D转换器,介绍了ADS7864的工作原理、内部结构、工作模式及编程要点,给出了ADS7864在电网谐波分析仪中与数字信号处理器TMS320F206的接口应用实例,并且对DSP与A/D转换器的接口特点进行了总结。