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Q&A

Posts tagged differential-amplifier

Synonyms: differential-amplifiers diff-amp diff-amps diffamp diffamps differential-amp differential-amps

Subtag of amplifier

Anything about differential amplifiers.

A differential amplifier is an amplifier designed to amplify the difference between two signals (usually voltages).
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Q&A What is the role of the differential amplifier in a delta sigma converter?

A differential amplifier amplifies the difference between the two input voltages but suppresses any voltage common to the two inputs. Based on this scheme the differential amplifier is substrac...

1 answer  ·  posted 3y ago by Pacifist‭  ·  edited 7mo ago by Lorenzo Donati‭

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Q&A What is the difference between differential amplifier and differentiator?

Since am interested in how a delta sigma modulator works, I need to know what is the difference between differential amplifier and differentiator if there is a difference of course.

3 answers  ·  posted 3y ago by Pacifist‭  ·  edited 8mo ago by Lorenzo Donati‭

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Q&A Testing instrumentation amplifier with differential signal

I am using the AD620 as instrumentation amplifier to amplify the body's ECG signal. An ECG is a differential signal (measured with two electrodes) and I want a differential gain of Gd=1000 . The ...

3 answers  ·  posted 1y ago by Carl‭  ·  last activity 1y ago by TonyStewart‭

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Q&A Help with differential to single ended voltage converter

Hello I don't understand how this differential to single-ended voltage converter can work. What I don't understand is why we place a current mirror(a current mirror copies the current flowing thr...

3 answers  ·  posted 2y ago by MissMulan‭  ·  last activity 2y ago by Circuit fantasist‭

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Q&A MOSFET differential to single ended converter intuition

How does the differential to single ended converter work? In order for the circuit to work, Q1 and Q3 must be in the saturation region and depending on the voltage inputs, one of Q2 and Q4 will be...

1 answer  ·  posted 2y ago by MissMulan‭  ·  edited 2y ago by Peter Mortensen‭

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Q&A What benefit has a differential amplifier when measuring a sensor signal?

What benefit has a differential amplifier when measuring the signal from a sensor that is remotely located such as in this example: - Why can't I use an arrangement like this: -

1 answer  ·  posted 3y ago by Andy aka‭  ·  last activity 3y ago by Andy aka‭