Portal de Periódicos da CAPES

Analysis and compensation of high-frequency effects in integrated MOSFET-C continuous-time filters

1987; Institute of Electrical and Electronics Engineers; Volume: 34; Issue: 8 Linguagem: Inglês

10.1109/tcs.1987.1086236

1558-1276

J.M. Khoury, Y. Tsividis,

Analog and Mixed-Signal Circuit Design

The high-frequency operation of MOSFET-C continuoustime filters is investigated. The degradation of performance of integrators due to the effects of op-amp finite gain-bandwidth product and the distributed capacitance of the MOS transistor is characterized. A solution to minimize these effects is presented and evaluated for practical designs. Op-amp requirements for good linearity performance at high frequencies are derived. The analyses and techniques shown are verified with computer simulation and demonstrated with an experimental chip.