Linear Technology LT2940IDD#PBF

Description
The LT2940 is a power and current monitor that measures high side current and differential voltage, multiplies them, and outputs a current proportional to instantaneous power. It features four-quadrant power measurement, ±5% power measurement accuracy, and a high side sense range of 4V to 80V (100V max). The LT2940 also provides current mode power and current outputs with an output bandwidth exceeding 500kHz, ±3% current measurement accuracy, and a supply range of 6V to 80V (100V max). Additionally, it has inverting and noninverting open-collector comparator outputs.

Features
Four-quadrant power measurement
±5% power measurement accuracy
High side sense range: 4V to 80V (100V max)
Current mode power and current outputs
Output bandwidth: >500kHz
±3% current measurement accuracy
Supply range: 6V to 80V (100V max)
Inverting and noninverting open-collector comparator outputs
Available in 12-pin DFN (3mm x 3mm) and 12-lead MSOP packages

Applications
Board level power and current monitoring
Line card and server power monitoring
Power sense circuit breaker
Power control loops
Power/energy meters
Battery charger metering