Name
Abstract | ||
|---|---|---|
Floating-capacitor implementations of differential-output log-domain circuits exhibit externally nonlinear behavior. However, the cause of these dynamics may differ from case to case. In a floating-capacitor class AB log-domain parallel resonator it was the finite forward-current gain of a pair of cross-coupled transistors that played a crucial role in the emergence of the nonlinearities. On the other hand, it was recently proved that in floating-capacitor log-domain LG ladders the BJT parasitic capacitances considerably affect the dynamics and must be taken into account for modeling purposes, no matter how small they are with respect to the floating capacitors. This work proves that, as was the case for the parallel resonator, the base currents of a number of transistors are responsible for the nonlinear dynamics of a class AB log-domain exponential state-space filter. This is achieved by presenting and validating the simplest mathematical model able to capture the nonlinear behavior of the circuit in both the autonomous and non-autonomous cases. |
Year | DOI | Venue |
|---|---|---|
2006 | 10.1109/ISCAS.2006.1693762 | 2006 IEEE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS, VOLS 1-11, PROCEEDINGS |
Keywords | Field | DocType |
mechanical engineering,frequency,state space,band pass filters,parasitic capacitance,semiconductor device modeling,bipolar transistors,circuits,linearity,voltage,bipolar junction transistor,capacitors,mathematical model,nonlinear dynamics | Parasitic capacitance,Capacitor,Nonlinear system,Band-pass filter,Computer science,Control theory,Semiconductor device modeling,Linearity,Resonator,Electronic engineering,Electronic circuit | Conference |
ISSN | Citations | PageRank |
0271-4302 | 0 | 0.34 |
References | Authors | |
1 | 3 | |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Alon Ascoli | 1 | 269 | 37.82 |
| Orla Feely | 2 | 90 | 25.65 |
| Paul F. Curran | 3 | 13 | 4.35 |