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单线数字温度传感器DS1820 一般的温度传感器输出与温度成比例的电压信号或电流信号,它们都是模拟信号。因此用于微处理器进行温度测量或控制时,需要将温度传感器输出的模拟信号经A/D变换器转变成数字信号。 DS1820单线数字温度传感器可以直接感受温度并输出数字信号,与微处理器直接接口,这样系统简化,提高可靠性。 DS1820单线数字温度传感器的测量温度为-55℃～+125℃,增量为0.5℃,相应输出9位数字信号,如下表所
Single-wire digital temperature sensor DS1820 general temperature sensor output and the temperature proportional to the voltage signal or current signal, they are analog signals. Therefore, for microprocessor temperature measurement or control, the analog signal output by the temperature sensor needs to be converted into a digital signal by the A / D converter. The DS1820 single-wire digital temperature sensor directly senses temperature and outputs digital signals for direct interface with the microprocessor, simplifying the system and improving reliability. DS1820 single-wire digital temperature sensor measurement temperature of -55 ℃ ~ +125 ℃, in increments of 0.5 ℃, the corresponding output 9-bit digital signal, as the following table