Hardware layout and configuration
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DocID027351 Rev 3
Figure 13. Routing of STPMS2L dual-channel sigma-delta modulators
2.29.2 STPMS2L
settings
STPMS2L operating parameters are set through its configuration terminals MS0, MS1, MS2
and MS3. On STM32L476G-EVAL, both devices are configured as follows:
•
voltage channel range: differential v/- 300mV
•
current channel range: differential v/- 300mV
•
internal voltage reference is used
•
input bandwidth: 0 to 1 kHz
•
temperature compensation: fl30ppm/°C
•
DAT output: voltage and current samples multiplexed
•
DATn output: not used
•
HW mode selected for settings
2.29.3 STPMS2L
power
metering
STPMS2L in U3 position simulates low-voltage AC power metering, with capacitive load
impedance, to give different phase to voltage and current.
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