Due to increasing demands on the accuracy of integrated sensors, it is very important to improve the accuracy of bandgap voltage references. Since the second order non linearity of the function V-BE(T) is generally the main limit to the accuracy of calibrated bandgap voltage references, several methods for the curvature-correction of V-BE(T) have been reported in literature; unfortunately these methods require quite complex circuitry. In this paper we investigate a low cost curvature correction method, consisting in taking advantage of the temperature dependence of integrated resistors and in using PTAT/R collector currents; furthermore we introduce two new circuit topologies which permit to take full advantage of this approach in spite of technological limitations. (C) 2004 Elsevier B.V All rights reserved.

Falconi, C., D'Amico, A., DI NATALE, C., Faccio, M. (2005). Low cost curvature correction of bandgap references for integrated sensors. SENSORS AND ACTUATORS. A, PHYSICAL, 117(1), 127-136 [10.1016/j.sna.2004.05.030].

Low cost curvature correction of bandgap references for integrated sensors

FALCONI, CHRISTIAN;D'AMICO, ARNALDO;DI NATALE, CORRADO;
2005

Abstract

Due to increasing demands on the accuracy of integrated sensors, it is very important to improve the accuracy of bandgap voltage references. Since the second order non linearity of the function V-BE(T) is generally the main limit to the accuracy of calibrated bandgap voltage references, several methods for the curvature-correction of V-BE(T) have been reported in literature; unfortunately these methods require quite complex circuitry. In this paper we investigate a low cost curvature correction method, consisting in taking advantage of the temperature dependence of integrated resistors and in using PTAT/R collector currents; furthermore we introduce two new circuit topologies which permit to take full advantage of this approach in spite of technological limitations. (C) 2004 Elsevier B.V All rights reserved.
Pubblicato
Rilevanza internazionale
Articolo
Sì, ma tipo non specificato
Settore ING-INF/01 - Elettronica
English
Con Impact Factor ISI
Bandgap voltage references; Curvature correction; Integrated sensors
Falconi, C., D'Amico, A., DI NATALE, C., Faccio, M. (2005). Low cost curvature correction of bandgap references for integrated sensors. SENSORS AND ACTUATORS. A, PHYSICAL, 117(1), 127-136 [10.1016/j.sna.2004.05.030].
Falconi, C; D'Amico, A; DI NATALE, C; Faccio, M
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2108/27927
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