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Final check: evidence and a capstone limit
Check the model, calculation, and interpretation before continuing.
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Your nominal simulation shows the sensor amplifier working at 10 Hz. The model uses a dependent source without supply pins or slew limits. The planned physical amplifier has an assumed 0.2–3.1 V output range on 3.3 V supply. Vref is 1.65 V and low-frequency gain is 11.
Which statement is justified?
Output headroom is min(1.65 − 0.2, 3.1 − 1.65) = 1.45 V. Divide by gain 11 to get approximately 131.818 mV input peak. The dependent-source simulation checks the stated mathematical circuit, while a real device still needs datasheet, loading, bandwidth, slew, noise, and measurement verification.
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