Module with a two-way Hall current sensor based on the ACS724LLCTR-20AU chip. It allows you to measure the current in the range from 0 to 20 A. The board is powered with the voltage from 4.5 V to 5.5 V and is intended for use in circuits with a logical voltage of 5 V. It offers a current path with low resistance (~ 1.2 mΩ) and electrical insulation up to 2.4 kV RMS. The output is a proportional analog voltage (200 mV/A) with offset 0.5 V and an error of ± 0,7%.

The sensor requires five connections to work properly: input current (IP+ and IP-), logic power (VCC and GND) and sensor output (OUT). Pin FILTER allows you to adjust the bandwidth of the plate by adding a capacitor to ground in parallel with the 1 nF capacitor that is already on the board. Without an additional external filter capacitor, the frequency response is approximately 90 kHz.
Data sheet
Manufacturer
Responsible person
A set of 40 pieces of female-female connecting cables in various colors, 10 cm long
A set of 40 pcs of male-female connecting cables in various colors, 10 cm long
The ACS72981 current sensor module uses the Hall effect to accurately and safely measure AC and DC current, providing electrical isolation of the current path. With a wideband analog output (up to 250 kHz) and low conduction resistance (0.2 mΩ), it minimizes energy loss and offers a fast response time of less than 2 µs. Pololu 5273
Large Carrier version current sensor from Pololu, model 5274, based on the ACS72981LLRATR-100B5 IC, designed for measuring current in the range from -100 A to +100 A at a 5 V supply in applications requiring galvanic isolation and analog output. Pololu 5274
Large Carrier version current sensor from Pololu, model 5275, based on the ACS72981LLRATR-100U3 IC, designed for measuring current in the range from 0 A to 100 A at a 3.3 V supply in applications requiring galvanic isolation and analog output. Pololu 5275
Large Carrier version current sensor from Pololu, model 5276, based on the ACS72981LLRATR-100U5 IC, designed for measuring current in the range from 0 A to 100 A at a 5 V supply in applications requiring galvanic isolation and analog output. Pololu 5276
Large Carrier version current sensor from Pololu, model 5277, based on the ACS72981KLRATR-150B3 IC, designed for measuring current in the range from -150 A to +150 A at a 3.3 V supply in applications requiring galvanic isolation and analog output. Pololu 5277
Pololu 5278 Large Carrier current sensor based on the ACS72981KLRATR-150B5 chip, designed for bidirectional current measurement from -150 A to +150 A with 5 V supply voltage in applications requiring galvanic isolation and an analog output signal. Pololu 5278
Current sensor in the Large Carrier version based on the ACS72981KLRATR-150U3 chip, designed for unidirectional current measurement from 0 A to 150 A with a 3.3 V supply voltage. The module uses Hall-effect sensing, an electrically isolated current path, and an analog output with a sensitivity of 17.6 mV/A proportional to the measured current. Pololu 5279
Current sensor in the Large Carrier version based on the ACS72981KLRATR-150U5 chip, designed for unidirectional current measurement from 0 A to 150 A with a 5 V supply voltage. The module uses Hall-effect sensing, an electrically isolated current path, and an analog output with a sensitivity of 26.7 mV/A proportional to the measured current. Pololu 5280
Current sensor in the Large Carrier version based on the ACS72981ELRATR-200B5 chip, designed for bidirectional current measurement from -200 A to +200 A with a 5 V supply voltage. The module uses Hall-effect sensing, an electrically isolated current path, and an analog output signal proportional to the measured current. Pololu 5282
Current sensor in the Large Carrier version based on the ACS72981ELRATR-200U3 chip, designed for unidirectional current measurement from 0 A to 200 A with a 3.3 V supply voltage. The module uses Hall-effect sensing, an electrically isolated current path, and an analog output signal proportional to the measured current. Pololu 5283
Precision Hall effect current sensor offering galvanic isolation, wide 150 kHz bandwidth and the ability to measure AC and DC current with very low power loss. With differential measurement and immunity to magnetic interference, it is perfect for applications requiring accurate current monitoring, such as power supplies, converters or motor control systems. Pololu 5290
Precision Hall effect current sensor offering galvanic isolation, wide bandwidth of 150 kHz and the ability to measure AC and DC current with very low power loss. Thanks to differential measurement and immunity to magnetic interference, it is perfect for applications requiring accurate current monitoring, such as power supplies, converters or motor control systems. Pololu 5291
Compact Pololu 5292 current sensor based on the ACS37220 IC, designed for measuring currents up to ±100 A at a 5 V supply voltage in applications requiring galvanic isolation and an analog output. Pololu 5292
Precision Hall effect current sensor offering galvanic isolation, wide bandwidth of 150 kHz and the ability to measure AC and DC current with very low power loss. Thanks to differential measurement and immunity to magnetic interference, it is perfect for applications requiring accurate current monitoring, such as power supplies, converters or motor control systems. Pololu 5293
Compact Pololu 5294 current sensor based on the ACS37220 IC, designed for measuring currents up to ±200 A at a 5 V supply voltage in applications requiring galvanic isolation and an analog output. Pololu 5294
Precision Hall effect current sensor offering galvanic isolation, wide bandwidth of 150 kHz and the ability to measure AC and DC current with very low power loss. Thanks to differential measurement and immunity to magnetic interference, it is perfect for applications requiring accurate current monitoring, such as power supplies, converters or motor control systems. Pololu 5295
ACS724LLCTR-20AU current sensor module with a current measurement range from 0 to 20 A. It communicates via an analog interface. Pololu 4044