Referenzfreier Pegeldurchgangs-Adc mit einem Bump-Basierten Adaptiven Vorspannungskomparator

Details

Veröffentlichungs-Nr.

EP4730655

Anmeldetag

30. Juli 2025

Veröffentlichung

22. April 2026

Rechtsraum

EP

Abstract

This disclosure relates to a comparator circuit and an ADC circuit for a neural interface. The ADC circuit includes the comparator circuit. The comparator circuit comprises a comparator to receive a first and a second signal, and internally amplify the first and the second signal. A bump bias circuit of the comparator circuit receives the amplified first and second signal, and causes the comparator to operate at a higher power level when a difference between the amplified first and second signal is smaller, and at a lower power level when the difference between the amplified first and second signal is larger. The ADC circuit comprises two comparator circuits connected to a first and second switching circuit. A control circuit of the ADC circuit can set a capacitor state of first capacitor pairs of the first switching circuit, and a capacitor state of second capacitors pairs of the second switching circuit, based on outputs of the respective comparator circuit.

Anmelder

Firma

Imec VZW

Land

🇧🇪 Belgien