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Precision Hall effect current sensor, providing galvanic isolation and wide 250 kHz bandwidth. Low conductive path resistance, magnetic interference immunity and ratiometric analog output make it ideal for AC and DC current monitoring applications. Pololu 5281
ACS72981 Hall Effect Current Sensor is a current sensor module based on the Hall effect, offering electrical isolation and a wide bandwidth of 250 kHz. With an extremely low conduction path resistance, it ensures minimal power losses and high measurement efficiency. The sensor can be placed anywhere in the circuit and used in applications requiring galvanic isolation. Thanks to the implementation of differential Hall measurement, the device is resistant to external magnetic fields, enhancing reading accuracy. The sensor provides an analog voltage proportional to the current value, enabling measurements of both DC (direct current) and AC (alternating current). The module operates with a supply voltage from 3 V to 3.6 V, and its output is ratiometric, meaning that its midpoint value is VCC/2 and changes by 6.6 mV × (VCC/3.3 V) per ampere of flowing current. Its short response time makes the sensor ideal for fast measurement systems and real-time current monitoring.
For proper operation, the sensor requires five connections: current input (IP+ and IP-), logic power supply (VCC and GND), and sensor output (VIOUT). The module utilizes a multilayer PCB, ensuring high durability and reliability. Large mounting holes allow for wire connections up to 2 AWG or the use of ring terminals. Alternatively, holes with 2.54 mm, 3.5 mm, and 5 mm spacing are available, but they are not recommended for high-current applications. With high accuracy, extensive mounting options, and resistance to interference, the sensor is widely used in power systems, power converters, battery monitoring systems, and motor control applications.
Manufacturer BTC Korporacja sp. z o. o. Lwowska 5 05-120 Legionowo Poland sprzedaz@kamami.pl 22 767 36 20
Responsible person BTC Korporacja sp. z o. o. Lwowska 5 05-120 Legionowo Poland sprzedaz@kamami.pl 22 767 36 20
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 5252
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 5253
The current measurement of 0 - 30A is carried out by the ACS712-30 system based on the Hall effect. The sensitivity of the system is 66mV / A (analog signal).
Module with an analog current sensor. It enables the measurement of alternating and direct currents up to 50 A. Cytron BB-ACS756
ACS714 Current Sensor Carrier -5 to +5A
This module provides precise, galvanically isolated current measurement within a range of ±30 A and voltage up to 480 VRMS, providing RMS, instantaneous, and active, reactive, and apparent power readings. Equipped with an I²C interface, 4-pin JST SH connectors, and 2.54 mm pins, it allows for easy integration with Qwiic, STEMMA QT, and standard microcontrollers. Configuration stored in EEPROM allows for defining address and overload thresholds. The sensor offers three voltage measurement ranges (120 V - default, 240 V, 480 V RMS) and the ability to detect overvoltages. Built-in protection and low conduction resistance ensure safe and accurate measurements. The version comes with soldered screw terminals. Pololu 5411
No product available!
The ACS71240 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 120 kHz) and low conduction resistance (0.6 mΩ), it minimizes energy loss and offers a fast response time of less than 5 µs. Pololu 5243
A compact Hall-effect current sensor that provides accurate DC and AC current measurement within a ±10 A range with galvanic isolation. It features a high-sensitivity analog VOUT output with a 150 kHz bandwidth, enabling fast and precise readings in dynamic systems. The module operates over a wide temperature range of -40°C to 125°C, and the low current path resistance minimizes energy loss. Its small size and flexible mounting options make it ideal for prototyping, industrial systems, and space-constrained projects. Pololu 5456
No product available!
Module with INA219 system with bi-directional current meter
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 5261
The ACS71240 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 120 kHz) and low conduction resistance (0.6 mΩ), it minimizes energy loss and offers a fast response time of less than 5 µs. Pololu 5241
The ACS71240 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 120 kHz) and low conduction resistance (0.6 mΩ), it minimizes energy loss and offers a fast response time of less than 5 µs. Pololu 5246
HSTS08L 10A 2.5V Current Sensor. Enables measurement of high currents. modHSTS08L
Module with an analog AC current sensor in a set with a probe for non-contact measurement of alternating current with a current of up to 20 A. DFRobot SEN0211
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 5272
Compact current sensor based on TMR technology, enabling precise measurements up to 30 A with minimal energy losses. Thanks to a wide 1 MHz bandwidth, galvanic isolation and interference immunity, it is perfect for applications requiring fast response and high accuracy. Pololu 5305
Power monitor module that detects voltages up to 60 VDC and current up to 30 A. It uses the Allegro MicroSystems ACS37800 IC, which simplifies adding monitoring to power systems. SparkFun SPX-17873
No product available!
Precision Hall effect current sensor, providing galvanic isolation and wide 250 kHz bandwidth. Low conductive path resistance, magnetic interference immunity and ratiometric analog output make it ideal for AC and DC current monitoring applications. Pololu 5281