This paper presents a simple circuit technique to reduce gain variability with temperature in cascode amplifiers using a body-biasing scheme, and at the same time, enhance the overall gain of the amplifier. Simulation results of a standard telescopic-cascode amplifier, in two different nanoscale CMOS technologies (130 nm and 65 nm) show that it is possible to obtain supply-and-temperature-compensation. The simulated DC gain has low variability (below ± 0.5 dB) while it is enhanced by 3 dB. The required auxiliary biasing circuit dissipates less than 5% of the main amplifier circuit.
|Title of host publication||Mixed Design of Integrated Circuits and Systems (MIXDES)|
|Publication status||Published - 1 Jan 2013|
|Event||20th Int. Conf. Mixed Design of Integrated Circuits and Systems (MIXDES’13) - |
Duration: 1 Jan 2013 → …
|Conference||20th Int. Conf. Mixed Design of Integrated Circuits and Systems (MIXDES’13)|
|Period||1/01/13 → …|
Oliveira, L. A. B. G. D., Oliveira, J. P. A. D., & Goes, J. C. D. P. (2013). Cascode Amplifiers with Low-Gain Variability using Body-Biasing Temperature and Supply Compensation. In Mixed Design of Integrated Circuits and Systems (MIXDES) (pp. 211-215)