Ic of an integrator with enhanced stability and stabilization method
An architecture of an integrator has an input transconductance amplifier Gi having an output resistance adjustable independently from the transconductance gain Gi, through a dedicated control signal, and includes also a matched transconductance amplifier Gi2 having an adjustable gain and an output r...
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| Format: | Patent |
| Sprache: | eng ; fre ; ger |
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| Zusammenfassung: | An architecture of an integrator has an input transconductance amplifier Gi having an output resistance adjustable independently from the transconductance gain Gi, through a dedicated control signal, and includes also a matched transconductance amplifier Gi2 having an adjustable gain and an output resistance matched with that of the first transconductance amplifier Gi and adjusted by the same dedicated control signal. A reference current is forced through the matched output resistance and the dedicated control signal is generated such to keep constant the output voltage of the matched transconductance amplifier. A method of stabilization against PVT variations of the integrated circuit of an integrator is also disclosed. |
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