Op-Amp Summing Amplifiers and Comparator Circuits

Understand ideal op-amp characteristics, the virtual earth concept, and design inverting, non-inverting, and unity-gain buffer amplifier circuits.

Analyse multi-input summing amplifiers for mixing and DAC applications, and design open-loop comparator threshold detection circuits.

Design inverting and non-inverting op-amp voltage amplifiers with standard component values for dual-rail, single-supply, and AC-coupled configurations.

Evaluate non-ideal op-amp constraints including output swing, DC offsets, and resistor tolerances to build, verify, and bench-test practical preamplifier circuits.

Understand the physical origins of op-amp bandwidth limitations and calculate trade-offs between closed-loop gain and cut-off frequency.

Analyse frequency response using Bode plots, optimise cascaded amplifier bandwidth, measure practical cut-off frequencies, and evaluate circuit stability.

Quantify, detect, and mitigate clipping distortion and slew-rate limiting in operational amplifier circuits subjected to large or high-frequency signals.