AD7801是一款单通道、8位电压输出DAC,采用+2.7 V至+5.5 V单电源供电。它内置片内精密输出缓冲,能够实现轨到轨输出摆幅。AD7801具有一个并行微处理器和DSP兼容接口,该接口配有高速寄存器和双缓冲接口逻辑。数据在CS或WR的上升沿载入输入寄存器。
The AD7801 has two reference options: an internal reference from the VDD or an external reference via the REFIN pin. The output of this DAC can be cleared by using the asynchronous CLR input.
这款器件具有低功耗特性,非常适合便携式电池供电设备。3.3 V时功耗小于5 mW,省电模式下则降至3 µW以下。
The AD7801 is available in 20-pin SOIC and 20-pin TSSOP packages.