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E-008 — R24/R58 38.3kΩ applied to DUT-01 — BOM and ECO-015 not yet updated notice

Created by demo · 2026-05-27

History

Details

Background: ECO-015 specified R24/R58=0Ω (EGP10000001). Simulation used 38.3kΩ. Gain mismatch discovered during F.02 bring-up 2026-05-13 (VOUT 23.5% high).

Rework #2 (2026-05-13): R24 and R58 replaced with 38.3kΩ on DUT-01. Post-rework confirmed gain 10.61 V/V, <0.4% error vs simulation.

Still pending:

  • Determine correct design intent (was ECO-015 wrong, or simulation never updated?)
  • Update BOM: R24, R58 → 38.3kΩ
  • Retract/amend ECO-015
  • Update SPECIFICATION.md / DESIGN_LOG.md gain network values

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