REQ-007 — Output voltage linearity ≤ ±1% of setpoint over 5–24V range

The output voltage shall be linearly proportional to the VSET DAC voltage over the active control range (5–24V), with residual non-linearity not exceeding ±1% of the commanded setpoint at any point.

VSET swept over the active range corresponding to 5–24V output (VSET ≈ 0.69V–3.33V at 7.2 V/V gain); VPSU measured at ≥10 evenly spaced setpoints; |VPSU_measured − VPSU_commanded| ≤ 1% of VPSU_commanded at every point; monotonic response required throughout the range.