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This paper describes a robust PWM class D amplifier with high linearity and good immunity to process variations. By using the proposed adaptive triangular wave generator (ATG), 0.0042% THD+N and 99.2 dB dynamic range is achieved in this design. The standard deviation of THD+N ratio over 22 samples can be smaller by 4 times compared to the results without the adaptive triangular wave generator. This...
This paper discusses the design of a 90 nm CMOS IV 10-bit lGS/s current-steering D/A converter. The proposed design operates under low supply voltage of IV and gives a large differential full- scale output of 0.5 Vppd. A wide full-scale current range of 2-10 mA is designed and the output impedance of the DAC is optimized for different full-scale currents by a bias circuit related to them. The post-layout...
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