ACHS-7121 Current Sensor Carrier (±10A)

PololuSKU: RB-Pol-821
Manufacturer #: 4030

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Description

  • ACHS-7121 Current Sensor Carrier (±10A)
  • Has typically a conductive path internal resistance of 0.7 mΩ
  • Features a PCB made with 2-oz copper
  • Is able to electrically isolate the current path
  • Allows the sensor to be inserted anywhere along the current path

The ACHS-7121 Current Sensor Carrier (±10A) is a simple carrier of Broadcom’s ±10A ACHS-7121 Hall effect-based linear current sensor, which offers a low-resistance (~0.7 mΩ) current path and electrical isolation up to 3 kV RMS.

This version accepts a bidirectional current input with a magnitude up to 10 A and outputs a proportional analog voltage (185 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. A bandwidth of 80 kHz can optionally be decreased by adding a capacitor across the board pins marked “filter”.

  • 1 x ACHS-7121 Current Sensor Carrier (±10A)
  • 0.7 x 0.8"
    • Current sense: 0.185 V/A
    • Minimum logic voltage: 4.5 V
    • Maximum logic voltage: 5.5 V
    • Weight: 1.1 g
    • Supply current: 15 mA
    • Version: -10 to +10 A

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