Week 06
Op-Amp Nonidealities
I study differential stages, feedback, filters, and output stages as one connected signal path.
What I connect in this unit
Input offset creates DC output error even with equal inputs, slew rate limits the slope of large signals, gain-bandwidth product limits small-signal bandwidth, and output saturation clips demands near the supply rails.
Concept map
- Input offset
- Slew rate
- Gain-bandwidth product
- Output saturation
Technical anchor
For Vp sin(2πft) to avoid slew-rate distortion, SR ≥ 2πfVp, while closed-loop bandwidth is approximately GBW/|Af|.
How I review it
From required gain, frequency, and output peak, check GBW and slew-rate limits separately, then verify that offset times noise gain fits within output headroom.
Connection to the full course
Unit 6 of 12. Unit numbers follow concept dependencies rather than the historical lecture calendar.