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8.4. Recommendations for further research

  • Application of the theory illustrated in Chapter 2 for power comparisons and analysis of power in A/D converters. Most of the effort should be done in the comparator sizing according to accuracy requirements for every bit. This is crucial in the next generation A/D for high frequency applications like RF fully digitized radio receivers.
  • A thorough investigation of power in oscillators, low-noise amplifiers where noise optimization is important for improving phase noise and noise factors respectively.
  • The use of chopper technique to improve matching in polyphase filters reducing further the power consumption and the realization of a polyphase filter capable of working below 1V (one penlite requires 0.9V when discharged).
  • The application of the chopper technique in low offset integrators used for battery management in monitoring the battery current.
  • The combination of the two Sinc approximation techniques in a single design for power reduction in the digital domain and the investigation of the possibility to use CDS format in having powers of two as coefficients. This will improve tremendously the matching in the current sources.
  • The implementation of a D/A converter with a class A chopped amplifier for increasing the dynamic range for high resolution applications (>20 bit).
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