通信用接收器的发展趋势是必需在信号刚一进入接收器信号通道时就进行取样,并配备有精确的测试仪,而要达到这个目标就要依赖超高速模拟数字转换器来实现。美国国家半导体首推的ADCO81000芯片是一款模拟输入带宽高达1.8GHz的8位IGSPS模拟数字转换器,它采用0.18微米(mm)的互补金属氧化半导体(CMOS)工艺技术制造。本文简述了该产品的结构及工作 The trend toward communications receivers is that the signal must be sampled as soon as it enters the receiver’s signal path and equipped with an accurate tester, and that goal is achieved by relying on very fast analog-to-digital converters. The National’s first ADCO81000 chip is an 8-bit IGSPS analog-to-digital converter with an analog input bandwidth of up to 1.8GHz and is manufactured in a 0.18-micron complementary metal oxide semiconductor (CMOS) process technology. This article describes the structure and work of the product