Table 8 Key specifications of detectors on MMS

From: Mars Mineralogical Spectrometer (MMS) on the Tianwen-1 Mission

CCD MCT FPA
Parameters Typical value Parameters Typical value
Active pixels 1024 × 1024 Array size 512 × 320
Pixel size 13 × 13 μm Pixel size 25 μm × 25 μm
Storage pixels 1024 × 1033 Temperature range 80/150 K Controllable
Peak output voltage 540 mV Output saturation voltage 2.225 V
Dynamic range 50,000:1 Frame frequency 60.44 Hz
Number of output amplifiers 2 Temperature stability 0.2 K @ 30 min
Output amplifier responsivity 4.5 μV/e Number of GPIO 4 bus
Readout noise at 253 K 2 rms e/pixel Temperature control precision −0.3 K
Maximum readout frequency 5 MHz Non-linearity 0.00764
Dark signal non-uniformity at 293 K \(2~\text{ke}^{-}\text{/pixel}\) Non-uniformity 4.80%
Weight 7.5 g Weight 765.7 g
Package size \(22.7\times 42.0~\text{mm}\) Integration capacitance \(1.6~\text{Me}^{-}\)