A triple gain mode digitally controlled amplifier in cmos process

作者：Park Bonghyuk^*; Jung Jaeho

来源：Microwave and Optical Technology Letters, 2012, 54(5): 1263-1266.

DOI：10.1002/mop.26749

• triple gain mode
• digitally controlled amplifier
• CMOS
• dynamic range
• high-gain mode
• mid-gain mode
• low-gain mode

A high dynamic range, wide-band triple gain mode amplifier has been developed using CMOS 0.18-mu m technology.The proposed low-noise amplifier (LNA) consists of feedback architecture in the first stage and cascode topology in the second stage. The frequency response of 2.03.5 GHz is demonstrated in this work. In high-gain mode, measured results show a noise figure (NF) of 2.62.9 dB, gain of 25.428.2 dB, and input P1dB of -19.0 dBm with 10.9 mA DC current. In mid-gain mode, the LNA achieves 4.26.5 dB NF and 21.322.5 dB gain with 11.0 mA current consumption. In low-gain mode, 6.78.5 dB NF, 10.212.5 dB gain, and -10 dBm input P1dB with 11.0 mA current are realized.

• 出版日期2012-5