A new current-mode analog circuit configuration that implements the function ln(x=y) is proposed. The circuit uses bipolar transistors and resistors and is suitable for integration. In the proposed circuit the ratio (x=y) can be larger or smaller than unity. Simulation results are included.
3] Ismail, A. M.; ElMeteny, S. K.; Soliman, A. M.: A new family of highly linear CMOS transconductors based on the current tail differential am-Abstract A new current-mode analog circuit configuration that implements the function exp(x -y) is proposed. The circuit uses bipolar junction transistors and resistors and is suitable for integration. Using the proposed circuit, implementation of the functions sinh(x -y) and cosh(x -y) is straightforward. Simulation results are included.
ÜbersichtEin neuer analoger Schaltkreis vom Strom-Typ wird vorgeschlagen, mit dem die Funktion exp(x -y) realisiert werden kann. Die Schaltung verwendet bipolare Transistoren und Widerstände und ist für eine Integration geeignet. Mit dieser Anordnung können auch unmittelbar die Funktionen sinh(x -y) und cosh(x -y) implementiert werden. Simulationsergebnisse ergänzen die theoretischen Untersuchungen.Für die Dokumentation e-Funktion / sinh / cosh / Bipolartransistor
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