MAX ICL7129A/MAX7129是一款高精度单片4.5位数字A/D转换器,可直接驱动复用液晶显示。ICL7129A/MAX7129采用新型“逐次积分”技术,在2.00000V和200.00mV范围内均具有±20,000计算分辨率。该器件具有高阻差分输入、优异的差分非线性、真比例配置以及自动极性控制。基准电压是实现精确DVM/DPM所需的唯一一个外部有源元件。超量程和欠量程输出以及10:1量程转化输入可实现系统量程的自动调节设计。ICL7129A/MAX7129检测电池低电压状态并发出指示,同时还可实现连续检测,提供可视指示输出以及可产生音频信号的逻辑电平输出。
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