The design uses integration CMOS chip ICL7107 as the A/D transform and lock save and coding module of a digital voltmeter to make the circuit easy design,high integration and high reliability.

• 本设计采用集成芯片ICL7107作为数字电压表的A/D转换及锁存和译码模块,使得电路具有设计简单、集成度及可靠性高的特点。