INTEGRATED LINEAR RESISTANCE WITH TEMPERATURE COMPENSATION
The invention makes it possible to provide a resistance, the resistivity of which is essentially constant with respect to changes in temperature, providing an effective, simple and compact solution which is fully compatible with CMOS technology. Said integrated linear resistance is fundamentally dis...
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Zusammenfassung: | The invention makes it possible to provide a resistance, the resistivity of which is essentially constant with respect to changes in temperature, providing an effective, simple and compact solution which is fully compatible with CMOS technology. Said integrated linear resistance is fundamentally distinguished by comprising an MRC network and a first control circuit which comprises a current mirror formed by two MOS transistors (M31, M41) polarized by an intensity source (IB1) independent of the temperature and comprises a branch with two resistances (RA1, RB1) in series, the terminal of which is connected to a first group of ports (G1) of the MRC network wherein the value of the two resistances (RA1, RB1) is such that the variation of R1 = RA1 + RB1 compensates for the deviations caused by the temperature in RMRC.
Resistencia lineal integrada con compensación de temperatura.Permite proporcionar una resistencia cuya resistividad es esencialmente constante ante cambios de temperatura, aportando una solución efectiva, sencilla, compacta y completamente compatible con la tecnología CMOS. Dicha resistencia lineal integrada destaca fundamentalmente por comprender una red MRC; y un primer circuito de control que comprende un espejo de corriente formado por dos transistores MOS (M31, M41) polarizados por una fuente de intensidad (IB1) independiente de la temperatura y que comprende un ramal con dos resistencias (RA1, RB1) en serie cuyo terminal está conectado a un primer grupo de puertas (G1) de la red MRC; y donde el valor de las dos resistencias (RA1, RB1) es tal que la variación de R1 = RA1 + RB1 compensa las desviaciones provocadas por la temperatura en RMRC. |
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