A simple extension of a previous class A/B differential output amp DI that creates a square-law characteristic.

What does differential amplifier actually mean? Find out inside PCMag's comprehensive tech and computer-related encyclopedia.

A standard difference amplifier can be used to sense current, but most difference amplifiers are unity-gain devices and require an extra gain stage in this application.

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You avoid this situation by adding buffers to the difference amplifier’s inputs, and buffers are normally op amps that use a common gain-setting resistor. This configuration is the “three-op-amp” ...

The all-in-one Dynamics 4290 accelerometer/microphone and differential amplifier has both constant current operation and DC/AC amplification, automatic calibration and a low pass filter.

Instead it forms a pair of sample-and-hold amplifiers, alternately trimming its own offset as a differential amplifier and then trimming the offset of the other op-amp which does the amplification.

A research group succeeded in developing the world's thinnest and lightest differential amplifier for bioinstrumentation.