Control systems such as those used in industrial markets are becoming more complex due to the increasing number of parameters being monitored and required accuracy of those measurements. Accordingly, a greater number of analog sensors and greater processing power has required increasing current consumption. The increasing ground current combined with unavoidable ground plane resistance from different locations cause voltage  variations in the system ground. Therefore, the ground potential where the precision analog sensor is located may not be the same as the ground potential where the measured data passed through the amplifier stage or the ADC conversion stage. Consequently, the resulting digital signal is now skewed by the voltage delta between the two ground potentials and relays inaccurate information to the processor. One solution to this problem is to isolate the power rails feeding the sensor network from high current sections of the control system using an isolated power converter. A complete sensor network consisting of a voltage reference, ADC, and low offset amplifier from Linear Technology consumes less than 800mW which the LTM8047 or LTM8048 easily supports.