There is an occasional caution that even unity-gain stable Voltage Feedback Amplifiers (VFAs) risk instability in inverting attenuator applications (Reference 1). In fact, there should be no more ...

In the Op-Amp shown in the figure, calculate the output voltage if the input voltage is: (a) 2V; (b) -2V. Use ideal diode assumption. (a) At vi = 2V: vi > 0, then vo < 0; D1 blocks and D2 conducts. (b ...

The very basics of operational amplifiers. Learn comparator, inverting, and non-inverting op-amp configurations. An operational amplifier, or op amp, is a dc-coupled high-gain electronic voltage ...

In the last Circuit VR we looked at some basic op amp circuits in a simulator, including the non-inverting amplifier. Sometimes you want an amplifier that inverts the signal. That is a 5V input ...

My hands-on introduction to operational amplifiers was in 1969 while in the army as a junior scientist in the Atmospheric Science Laboratory at the White Sands Proving Grounds. We had taken a ...

View PDF version of this article. What amplifiers are used to drive analog- to-digital converters (ADCs)? Possibilities include single-ended and differential inputs and outputs, plus voltage feedback ...