A 1.5 GHz Linear-in-dB Variable Gain Amplifier with Process and Temperature Tracking in 0.18-μm CMOS

摘要：

A linear-in-dB CMOS Variable Gain Amplifier (VGA) targeting large-bandwidth applica tions,such as a DVD front-end and a Digital TV tuners RF VGA is implemented in 0.18-μm CMOS. With a novel process and temperature variation track ing scheme and a charge-pump based negative supply to extend tracking range and improve linearity,this VGA provides stable -6 to 16 dB amplification across PVT variations.With less than 3 mA biasing current, the 3-dB bandwidth is more than 1.5 GHz and the THD is less than -45 dB for output swings greater than 500 mVppd.

关键词： Linear-in-dB VGA CMOS THD

作者: Xiong Liu Alan N.Willson,Jr

作者单位: Electrical Engineering Department,University of California,Los Angeles,CA 90095 USA

会议类型: 国际会议

会议名称: 2009 IEEE 8th International Conference on ASIC(第八届IEEE国际专用集成电路大会)

会议地点: 长沙

会议语种:英文

页码: 266-269

在线出版日期: 2009-10-20（万方平台首次上网日期，不代表论文的发表时间）