Errata
Corrections
Every correction is listed here and fixed in the next printing. Found something? Email ask@hwinterview.com with the question ID.
Fixed before the first printing (manuscript v1.5, November 2026)
| PC-01 | Electrolytic-capacitor lifetime wording fixed: the rule is per 10 °C of extra temperature, not "above rating". |
| PC-02 | Z5U temperature range corrected to +22/−56% (only Y5V reaches −82%). |
| AN-05 | Schmitt-trigger hysteresis formula now names its circuit (inverting type, R1 from the + input to ground). |
| PW-13 | Worst-case output-stage dissipation corrected from 0.25 W to about 0.38 W (sourcing at −2.5 V or sinking at +2.5 V). |
| PI-03 | Trace inductance corrected: a 50 Ω trace over a plane is about 7–10 nH per inch. |
| MD-05 | Scope bandwidth example split: about 8 GHz for 5 Gb/s, 13–16 GHz for 10 Gb/s. |
| PI-01 | Appendix A target-impedance example corrected from ~1 mΩ to ~1.3 mΩ, to match this question. |
Since publication
None yet.