Electronics Design AUOp-Amps
Operational amplifier circuits: inverting and non-inverting configurations, filters, comparators, and instrumentation amplifiers.
Questions
How Do You Design an Active Filter with an Op-Amp?
Active filters use op-amps for frequency roll-off without inductors. Covers Sallen-Key, MFB topologies, Butterworth response, and ADC anti-aliasing.
What Is an Instrumentation Amplifier and How Does It Work?
Covers the three-op-amp topology, gain formula G = 1 + 2R/Rg, CMRR, and in-amp applications for Wheatstone bridges and sensor front ends.
What Are Inverting and Non-Inverting Op-Amp Amplifier Configurations?
The inverting amplifier sets gain as −Rf/Rin with phase inversion; non-inverting sets 1+Rf/Rin. Formulas, comparison table, and design rules.
What Is a Comparator and How Is It Different From an Op-Amp?
A comparator outputs a digital signal based on which input is higher. Covers open-drain output, hysteresis, propagation delay, and when to use one vs an op-amp.
What Is an Op-Amp (Operational Amplifier)?
An op-amp is a high-gain differential amplifier whose behaviour is determined by external feedback. Covers open-loop gain, virtual short, GBW, and applications.