We are offering these breakout boards with support from Allegro Microsystems as an easy way to use or evaluate their ACS711EX Hall effect-based, electrically isolated current sensors. The following list details some of the sensor’s key features:
- Hall effect-based sensor with electrically isolated current path allows the sensor to be inserted anywhere along the current path and to be used in applications that require electrical isolation.
- Conductive path internal resistance is typically 0.6 mΩ, and the PCB is made with 2-oz copper, so very little power is lost in the board.
- 100 kHz bandwidth analog output voltage proportional to AC or DC currents.
- Good accuracy and reliability: factory calibration results in a typical total output error of ±5% at room temperature, the output offset voltage is extremely stable, and the sensor has zero magnetic hysteresis.
- Overcurrent FAULT output latches low when current magnitude exceeds the optimized sensing range.
- Operating temperature range of -40°C to 125°C.
- 0.7″×0.8″ carrier board offers a variety of ways to insert it into the current path and 0.1″-pitch (breadboard compatible) power, ground, and output pins.
They operate from 3 V to 5.5 V, so they can interface directly with 3.3 V and 5 V systems.
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Products in category “ACS711 Current Sensor Carriers”
This board is a simple carrier of Allegro’s ACS711KEXLT-15AB-T Hall effect-based, electrically isolated current sensor, which offers a low-resistance (~0.6 mΩ) current path and a 100 kHz bandwidth for fast response times.
Part Suffix |
Range |
Sensitivity @ 3.3 V |
Zero Point @ 3.3 V |
Fault Trip Level |
Supply Voltage |
KEXLT-15AB-T |
±15.5 A (bidirectional) |
90 mV/A |
1.65 V |
±15.5 A |
3 V to 5.5 V |
This board is a simple carrier of Allegro’s ACS711KEXLT-31AB-T Hall effect-based, electrically isolated current sensor, which offers a low-resistance (~0.6 mΩ) current path and a 100 kHz bandwidth for fast response times.
Part Suffix |
Range |
Sensitivity @ 3.3 V |
Zero Point @ 3.3 V |
Fault Trip Level |
Supply Voltage |
KEXLT-31AB-T |
±31 A (bidirectional) |
45 mV/A |
1.65 V |
±31 A |
3 V to 5.5 V |