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System modeling of CMOS power amplifier employing envelope and average power tracking for efficiency enhancement
In the past decade, there has been great motivation to improve the efficiency of power amplifiers (PAs) in handset transmitter systems in order to address critical issues such as poor battery life and excessive heat. ...
A low-voltage, low-power CMOS bandgap reference
Bandgap reference circuits are used in a host of analog, digital, and mixed-signal systems to establish an accurate voltage reference for the entire IC. The most used CMOS implementation for voltage references is the bandgap ...