Hybride Spannungsreferenzschaltung mit Kompensation von Schwellenspannungsschwankungen

Details

Veröffentlichungs-Nr.

EP4752672

Anmeldetag

27. November 2024

Veröffentlichung

3. Juni 2026

Rechtsraum

EP

IPC

G05F3/20, G05F3/22, G05F3/24

Abstract

This disclosure proposes a reference voltage circuit, which may be used with a temperature sensor of a neural interface. The circuit comprises a first MOS transistor for providing a current to a set of transistors. In the set of transistors, a second MOS transistor generates a first PTAT voltage, a BJT generates a CTAT voltage, and a third MOS transistor generates a second PTAT voltage. The reference voltage is the sum of the first and second PTAT voltage and the CTAT voltage. The first and the third MOS transistor are of the same type of device, and a source-bulk voltage of the third MOS transistor is non-zero. The first PTAT voltage is independent of a threshold voltage of the second MOS transistor, and a dependence of the second PTAT voltage on the threshold voltage of the third MOS transistor is the opposite of a dependence of the CTAT voltage on a threshold voltage of the first MOS transistor.

Anmelder

Firma

Imec VZW

Land

🇧🇪 Belgien

Fachgebiete