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ACS724 Current Sensor Carrier -5A to +5A
This board is a simple carrier of Allegro’s bidirectional ±5A ACS724LLCTR-05AB Hall effect-based linear current sensor, which offers a low-resistance (~1.2 mΩ) current path and electrical isolation up to 2.4 kV RMS. This version accepts a bidirectional current input with a magnitude up to 5 A and outputs a proportional analog voltage (400 mV/A) centered at 2.5 V with a typical error of ±1.5%. It operates from 4.5 V to 5.5 V and is intended for use in 5 V systems.
Alternatives available with variations in these parameter(s): version Select variant…
Description | Specs (10) | Pictures (9) | Resources (5) | FAQs (0) | On the blog (1) |
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File downloads
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Allegro ACS724 current sensor datasheet (2MB pdf)
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Dimension diagram of the ACS724 Current Sensor Carrier (1MB pdf)
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3D model of the ACS724 Current Sensor Carrier (3MB step)
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Drill guide for ACHS-712x Current Sensor Carriers (17k dxf)
This DXF drawing shows the locations of all of the board’s holes. The through-hole sizes and locations in this file also apply to cs01b versions of the PCB, though some of the via locations are different.
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Allegro Application Note AN296169: Characterizing System Bandwidth in Complex Current Sensor Applications (1MB pdf)
This is the application note referenced on page 16 of the ACS724 datasheet and page 22 of the ACS71240 datasheet. The ACS720 is used validate the test methods presented, but these same methods and principles would also apply to the ACS724 and the ACS71240.