基于MAX1069的單片機(jī)數(shù)據(jù)采集系統(tǒng)的設(shè)計(jì)

本文介紹的數(shù)據(jù)采集系統(tǒng)應(yīng)用低功耗、14 位逐次逼近以及兼容于I2C 串行接口的模/數(shù)轉(zhuǎn)換器MAX1069，可方便的與微控制器及其外圍設(shè)備進(jìn)行連接。通過(guò)自行設(shè)計(jì)的數(shù)據(jù)采集系統(tǒng)，本文主要介紹了MAX1069 芯片的功能、時(shí)序，并通過(guò)I2C 軟件模擬的方法，實(shí)現(xiàn)
了MAX1069 與MCS-51 系列單片機(jī)間的數(shù)據(jù)采集。
關(guān)鍵詞：模/數(shù)轉(zhuǎn)換器；MAX1069；I2C 總線；單片機(jī)；數(shù)據(jù)采集
Abstract：The paper is proposed a system of data acqusition in which, a low-power, 14-bit successive approximation analog-to-digital converter (ADC) of MAX1069 is applyed. And with an I2C-compatible 2-wire serial interface，so MAX1069 is convenient to link with MCU. According to the data acqusiting system designed, the performance and clock cycles of MAX1069 is mainly introduced in this paper. In order to implement data acqusiting between MAX1069 and MCU of MCS-51 family, it is necessary to use software to simulate the operation of I2C.
Keywords：ADC；MAX1069；I2C Bus；MCU；Data Acqusition