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±5A Linear Current Sensor

Product Code: MR003-006.1
Excl. VAT: £6.20 Incl. VAT: £7.44
You will earn 6 Robo Points for buying this product

This board carries the Allegro's ACS714ELCTR-05B-T hall effect-based linear current sensor, which offers a low-resistance (~1.2mΩ) current path and electrical isolation up to 2.1kV RMS.

The sensor operates at 5V and its analog voltage output has a sensitivity of 185mV/A centered at 2.5V with a typical error of ±1.5% and a 80kHz bandwidth.

Optimized bidirectional current range is from -5A to +5A, but its robustness allows survival of the device at up to 5× overcurrent conditions. Top silkscreen shows the direction that is interpreted as positive current flow.

The IC has an internal filter resistance of 1.7kΩ, and the carrier board includes a 1nF filter capacitor, which produces a low-pass RC filter with a 93,6kHz cutoff frequency.

You can improve sensing system accuracy for low-frequency sensing applictations by adding a capacitor in parallel with the integrated 1nF capacitor across the component pads labeled as CF (see notes on datasheet).

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