Selbstvorgespannter Analogpuffer mit Einheitsverstärkung und Niedrigem Leckstrom

Details

Veröffentlichungs-Nr.

EP4761107

Anmeldetag

8. Dezember 2025

Veröffentlichung

17. Juni 2026

Rechtsraum

EP

IPC

H03F3/30, H03F3/45

Abstract

A unity gain buffer including a differential amplifier, detector and feedback circuitry, and an output stage. The differential amplifier receives a difference voltage between a buffer input and output, is coupled to a control node for modulating a current of the differential amplifier, and drives an output node. The detector and feedback circuitry has an input coupled to the buffer input and output and has an output coupled to the control node. The output stage has an input coupled to the output drive node and has an output coupled to the buffer output node. The differential amplifier draws minimal current when the difference voltage is substantially zero and increases current when the difference voltage increases causing the output stage to drive a voltage of the buffer output node back to a voltage of the buffer input node. At least one current booster or a preset load may be added.

Anmelder

Firma

NXP USA, Inc.

Land

🇺🇸 USA