Schaltkondensator-Zweiwege-Gleichstromunterdrückungs-Frontendverstärker

Details

Veröffentlichungs-Nr.

EP4811656

Anmeldetag

3. März 2026

Veröffentlichung

23. September 2026

Rechtsraum

EP

IPC

H03F1/34, H03F3/45, H03F3/00

Abstract

A device may include a signal input, an operational amplifier (op-amp) comprising a noninverting op-amp input coupled to the signal input, an inverting op-amp input, and an op-amp output, a capacitor comprising a plurality of ports and a switched capacitor arrangement. The switched capacitor arrangement includes a first switch coupled between a first capacitor port and the inverting op-amp input, a second switch coupled between a second capacitor port and the op-amp output, a third switch coupled between a third capacitor port and the signal input, and a fourth switch coupled between a fourth capacitor port and ground. The device may process electrophysiology signals by implementing switched-capacitor dual-path DC cancellation to achieve offset and low-frequency interference rejection while maintaining high input impedance and signal amplification.

Anmelder

Firma

Avago Technologies International Sales Pte. Limited

Land

🇸🇬 Singapur

Fachgebiete