High-Precision Linear Current Sensor IC with 200µΩ Conductor and 3.3V Operation

ACS781

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This part is in production and has been determined to be NOT FOR NEW DESIGN. Please refer to ACS37220 for new designs.

The ACS781 provides accurate current sensing for automotive applications, featuring a coreless design, 200µΩ conductor, and optimized performance at 3.3V.

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Product Details

Top Features

Core-less, micro-sized, 100 A continuous current package
Ultra-low power loss: 200 μΩ internal conductor resistance
Immunity to common-mode field interference
Greatly improved total output error through digitally programmed and compensated gain and offset over the full operating temperature range
Industry-leading noise performance through proprietary amplifier and filter design techniques
Integrated shield greatly reduces capacitive coupling from current conductor to die due to high dV/dt signals, and prevents offset drift in high-side, high-voltage applications
Monolithic Hall IC for high reliability
3 to 3.6 V, single supply operation
120 kHz typical bandwidth
3.6 μs output rise time in response to step input current
Output voltage proportional to AC or DC currents
Factory-trimmed for accuracy
Extremely stable quiescent output voltage
AEC-Q100 automotive qualification