Bandwidth enhancement of multi-stage amplifiers using active feedback Conference Paper uri icon

abstract

  • A new topology for wideband multistage amplifiers (MA) is introduced. The proposed method uses active negative feedback in a chain of amplifiers to extend the bandwidth and improve gain-bandwidth product. The topology has several advantages such as having capability of widening bandwidth as the number of stage increases and enhancing bandwidth by several times that of the dominant pole of each stage. To verify the performance of topology, an 8-stage amplifier in 0.35μm CMOS was designed, where more than 2.8GHz bandwidth and 40dB gain were obtained from simulations.

author list (cited authors)

  • Samadi, M. R., Karsilayan, A. I., Silva-Martinez, J., & IEEE, ..

publication date

  • September 2004

publisher