ACHS-7121 Current Sensor Carrier - ACHS-7121 ± 10A current sensor module

Description

Module with a bidirectional Hall current sensor based on the ACHS-7121 system. It allows you to measure the current in the range from -10 to 10 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 (~ 0,7 mΩ) and electrical insulation up to 3 kV RMS. The output is a proportional analog voltage (185 mV/A) centered at 2.5 V with an error of ± 1.5%.

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 80 kHz.

Features

• Hall effect differential detection
• The internal resistance of the conductive path is 0.7 mΩ
• Electrical insulation up to 3 kV RMS
• High bandwidth up to 80kHz for fast response times
• Integrated digital temperature compensation circuit
• The rugged sensor IC can tolerate 100 ms to 100 A transient currents
• Operating voltage 4.5 to 5.5 V
• Current measuring range from -10 to 10 A
• Output resolution 0.185 V/A
• Operating temperature range from -40°C to 110°C
• Dimensions: 17.8 x 20.3 mm
• Weight: 1.1 g

Kit contains

• ACHS-7121 Current Sensor Carrier module
• Straight 3-pin male connector