本文采用0.25μmCMOS工艺,设计和研制了800MHz频段低噪声放大器。放大器采用共源共栅结构,芯片内部埋置了螺旋电感。放大器的增益为16.4dB、噪声系数小于1.3dB、工作电压2.5V时,功耗为35mW。测试结果达到了设计指标,一致性良好。
An 800MHz low noise amplifier has been designed and implemented in 0. 25μm CMOS process. The amplifier employs cascode structure, and spiral inductors on chip. The amplifier provides a forward gain of 16.4dB and a noise figure below 1.3dB, while consuming 35 mW from a 2.5V supply. The test results reach the design specifications and show good consistence.