Pololu ACS711 current sensor - 12,5A to + 12,5A

Index: PLL-00525

Current sensor operating in the +/-12.5 A range based on the Hall effect. The output is analogue voltage. Supply voltage from 3.0 V to 5.5 V. The product has been replaced by ACS711EX -15 A to +15 A current sensor module.

Pololu ACS711 current sensor - 12,5A to + 12,5A
€5.28 tax excl.
Discontinued product
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Manufacturer: Pololu


The product has been replaced by a newcurrent sensor ACS711EX -15 A to +15 A.


  • Voltage supply of the logical part: 3.0 V or 5.5 V
  • Current consumption of the logical part: 4 mA
  • Sensitivity for 3.3 V supply: 0.119 V/A
  • Module weight 1.3 g
  • Dimensions: 18 x 20.5 mm

We also offer a separate ACS711 chip.

Wymiary modułu z czujnikiem prądu ACS711Moduł z czujnikiem prądu ACS711 +/- 12,5A

Main features of the module:

  • Circuit designed for current flowing in both directions (from -12.5 A to 12.5 A).
  • Thanks to the low resistance of the chip (1.2m ohm) and power losses are very low.
  • Thanks to the Hall effect, the current paths are isolated from the logical part.
  • The band is 100 kHz.
  • Precision of 5 % at room temperature.
  • Pin FAULT, indicating exceeding the range from -12.5 A to 12.5 A

Opis modułu czujnika prądu ACS711

The sensor requires a supply voltage of 3 - 5.5V given on the pinVcc. The sensor's output (pinOUT) is an analogue voltage centered on the VCC/2 value. When supplied with 3.3V, the output voltage changes by 55mV to 1A of the measured current. Positive current direction increases the voltage value, negative direction decreases.

The formula for VOUT output voltage changes as follows:

VOUT = (0.11V/A * and + 1.65V) * Vcc / 3.3V

Pin FAULT, normally in the high state, reaches the low state when the measured current exceeds the permissible range of +/-12 A.

Schemat podłączenia czujnika prądu ACS711

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Package width 0.001 cm
Package height 0.001 cm
Package depth 0.001 cm
Package weight 0.001 kg

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