adc0809

Upper and lower temperature limits are inputted through keyboard and soil temperatures are sampled by ADC0809 with real time display .

由键盘输入温室土壤的上、下限温度，通过ADC0809对温室土壤温度进行采样，并实时显示土壤温度。

The conversion speeds and results of ADC0809 analog-to-digital converter are accurate tested and analyzed by using multi-master clock pulse with different frequency and pulse width .

使用多组不同频率和不同脉宽的工作时钟，定量测定分析ADC0809模数转换器的转换速度和转换结果。

Data collection and treatment adopt ADC0809 chip to carry on data exchange , and at the same time explain the problem to be paid attention to while gathering the data .

数据采集及处理采用ADC0809芯片进行数据转换，同时说明采集数据时需要注意的问题。

Based on how to improve the reliability and timeliness of high-voltage mineral leak detection , the problems in circuit design about ADC0809 is analyzed and the resolution is also made .

围绕提高高压矿用检漏器工作的可靠性和实时性，对ADC0809相关电路设计中应注意的问题做了详细深入分析，给出了解决问题的具体方法。

Fundamental principle : Heart electricity from chest electrodes amplified circuit ( to amplify ) filter ADC0809 ( to transform analog signals into digital signals ) 8031 ( to calculate and process ) .

其基本原理是：由电极从胸前取得心电信号，经前置放大电路放大、滤波后，通过ADC0809将模拟信号转换成数字信号送入8031进行计算处理。

In the not too high speed of converting circumstances , it can make up A / D converted circuit and replace AD574 or ADC0809 and so on , furthermore reduce hardware cost greatly .

在要求转换速度不太高的情况下，外围接简单电路可以代替由AD574或ADC0809等芯片组成的A/D转换电路，硬件价格大大降低。