Isolated DC Volt Meter Module
The ICM14002 is an isolated analog to digital converter module with an intelligent SPI interface. The functionality is similar to a hand held volt meter in a board mounted package. High impedance inputs with ±1V and ±10V ranges allow direct connection of sensitive circuits, while isolation eliminates ground loops and level shifting considerations. Measurements of DC input voltage are provided through the SPI interface directly in 100μV or 1mV counts, reducing host software complexity. Built in calibration functions allow for system level calibration management. The specified isolation of 2500VAC is tested for each module. Full encapsulation maintains the integrity of the high impedance input circuits and the specified isolation rating against the effects of age and contamination in challenging industrial environments.