摘要
设计一种简单、实用的接口电路,它与常用双积分型A/D转换器配合,可实现自动量程转换功能,扩展这类芯片的测量范围,提高其测量精度。该接口电路具有体积小、成本低、结构简单、调试容易和工作可靠的特点,可以和不同型号的双积分型A/D转换器联接。
To design a simple and utility interface circuit with analog switch, integrated operational amplifier and CMOS digital integrated circuit can realize the function of automatic range switching, and extends the measuring range and improves the measuring accuracy. This interface circuit has the characteristics of small size, low cost, simple structure, easy debugging and reliability, can be connected with different types of the dual integration A/D converters.
出处
《仪表技术》
2007年第6期59-61,共3页
Instrumentation Technology
