说明：  用ICL7107制作数字表的几个技巧。ICL7107是美国英特西尔公司产 品，是专为驱动LED数码管设计的3 双积分式A／D转换器，采用双列直 插40引脚封装，外围元件少，由它制 作的数字表具有线路简单、工作可靠、 性能稳定以及成本低等特点，可广泛应 用于电压、电流、温度、压力等各种测量 场合。
(ICL7107 figure produced by some of the skills table. ICL7107 are特西尔American-British company' s products, are designed to drive LED digital tube designed three pairs of integral-type A/D converter, the use of dual in-line 40 pin package, low external component count, which produced the figures in table line with easy, reliable, stable performance and low cost, can be widely used in voltage, current, temperature, pressure and other measurement occasions.)