A new g(m)-boosting current reuse CMOS folded cascode LNA

作者：Kargaran Ehsan^*; Mafinejad Yasser; Mafinezhad Khalil; Nabovati Hooman

来源：IEICE Electronics Express, 2013, 10(24): 20130264.

DOI：10.1587/elex.10.20130264

• low noise amplifier (LNA)
• folded cascode
• high gain
• low power
• low voltage
• gm-boosting
• current reuse

In this paper, a new gain enhancement technique which is recommended for folded cascode LNA structures at low voltage and low power applications is presented. In order to increase power gain, a new modified version of g(m)-boosting technique is employed which increases the power gain while consuming no extra power. The new topology shares its DC current at the folded stage in order to reduce power dissipation associated with the g(m)-boosting technique. The proposed technique reduces power dissipation almost 27%, additionally; other parameters such as power gain and noise figure have been slightly improved. In the proposed LNA, power gain and noise figure are15 dB and 3.2 dB respectively. It consumes 1.3mW under 0.6 supply voltage.

• 单位
  迪肯大学