Conversion gain per channel computed using flat-field ramps with increasing (IR3 < IR4 < IR5) illumination levels. In the legends for each detector the average gain over the 32 channels and the dispersion between channels are given. For all the three illuminations the mean conversion gain for the whole FPA is 0.52 ADU/e⁻ with a 3% variation between arrays. The channel-to-channel gain variation inside a detector is less than 1%. The gain variation with signal is described in Le Graët et al. (2024).