Body Biasing For Analog Design

Practical experiences In 22nm FD-SOI.


This paper presents the practical application of body biasing control of ultra-deep submicron FD-SOI technologies for analog and mixed-signal designs. The body biasing control is dedicated for dynamic control of the trade- off between speed vs. power consumption for advanced digital circuits. However, in this work we focus on trading-off and improvement of analog circuit performances. Three different circuits were explored and designed: an all CMOS bandgap reference, a 500 MSps current-steering DAC, and a 12-bit sigma-delta modulator. All designs were verified and realized in GlobalFoundries 22nm FD-SOI technology.

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