ACS37030 - Allegro

ACS37030 High-Accuracy Current Sensor

The ACS37030/2 is a fully integrated current sensor IC that senses current flowing through the primary conductor. Two signal paths are used: a Hall-effect element path to capture DC and low-frequency current information, and an inductive coil path to capture high-frequency current information. These two paths are summed to allow for sensing of a wide frequen.

Features

• High operating bandwidth for fast control loops or where high-speed switching currents are monitored □ DC to 5 MHz bandwidth □ 40 ns typical response time
• High accuracy and low noise □ ±2% sensitivity error over temperature □ ±10 mV maximum offset voltage over temperature □ 50 mARMS input referred noise □ 3.3 V non-ratiometric supply operation □ Differential sensing immune to external magnetic fields
• VREF output voltage for differential routing in noisy application environments (ACS37030)
• FAULT output for fast open drain overcurrent detection (ACS37032)
• Highly isolated compact surfac.