Fujitsu MB95F430 manual Amplifier Overview

Operational Amplifier Version 1.0

Chapter 2 Amplifier Overview

2 Amplifier Overview

The operational amplifier can be used to sense the ground current, and support front-end analog signal conditioning prior to A/D conversion. It can operate in either closed loop mode or standalone open loop mode.

■Closed Loop Mode

The operational amplifier can be configured as a non-inverting closed loop operational amplifier.

It has six software-selectable closed loop gain options for ground current sensing according to different sense voltage values.

■Standalone Open Loop Mode

In this mode, the operational amplifier input pins are connected to external signals without any output feedback.

The standalone open loop mode is designed for users that can choose more flexible gain using external resistors.

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