Current Sensor ICs
High-Bandwidth Current Sensor with Fast Overcurrent Fault and High Isolation
ACS709
Markets Served
These parts are in production but have been determined to be NOT FOR NEW DESIGN. Please refer to ACS724 and ACS725 for new designs.
The ACS709 offers high-accuracy current sensing with a fast overcurrent fault response. It features high bandwidth (120kHz), high isolation voltage, and a user-settable overcurrent fault level for enhanced system protection.
Product Details
Product Details
Top Features
- Industry-leading noise performance with 120 kHz bandwidth through proprietary amplifier and filter design techniques
- Integrated shield greatly reduces capacitive coupling from current conductor to die due to high dV/dt, and prevents offset drift in high-side applications
- Small footprint surface mount QSOP24 package
- 2100 VRMS isolation voltage between primary current path and sensor IC electronics
- 1.1 mΩ primary conductor resistance for low power loss
- User-settable Overcurrent Fault level
- Overcurrent Fault signal typically responds to an overcurrent condition in <2 µs
- Filter pin capacitor sets analog signal bandwidth
- ±2% typical output error
- 3 to 5.5 V, single supply operation
- Factory trimmed sensitivity, quiescent output voltage, and associated temperature coefficients
- Chopper stabilization results in extremely stable quiescent output voltage
- Ratiometric output from supply voltage
