Data center computing has more than quintupled between 2010 and 2018. However, the amount of energy consumed by the world’s data centers grew only six percent during that period, thanks to improvements in energy efficiency. Precision power measurement on key functional blocks allow systems to effectively allocate and minimize power. Integrated ADCs on MCUs are not precision quality. Effective number of bits (ENOB) is the trait of importance. This drives a need for more discrete precision current/power monitoring to meet the performance and reliability needs of customers. In handhelds and portable electronics, space and extending battery life continue to be critical for system design. Some clients address these challenges by monitoring and switching power loads based on current/power consumption. To offset the power consumption from the added current monitoring, multiple channel current/power monitors are used. A four-channel power monitor will consume 66% less power than four separate single current monitors.