HIMA Z7126 取样示波器也可以使用分立DAC
由于复杂性和精确匹配的需要成分，除了最专业的DAC之外，所有DAC都实现为集成电路(ICs)。这些通常采取以下形式金属-氧化物-半导体(MOS)混合信号集成电路集成两者的芯片模拟的和数字电路。
分立DAC(由多个分立器件构成的电路电子元件而不是封装的IC)通常是极高速、低分辨率、耗电的类型，如在军事上使用的雷达系统。非常高速的测试设备，尤其是取样示波器也可以使用分立DAC。
DAC将一个摘要有限精度数字(通常为定点 二进制数)转化为物理量(例如电压或者一个压力).特别是，DAC通常用于转换有限精度时间序列数据到不断变化的物理信号。
根据奈奎斯特-香农采样定理假设DAC的带宽满足某些要求(例如基带用...发信号带宽少于奈奎斯特频率).数字采样介绍量化误差(舍入误差)表现为重构信号中的低电平噪声。
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