The ACS712 is a current sensor from Allegro Microsystems designed to measure current with a maximum rating of 30A. It provides an analog output voltage that is proportional to the current flowing through the sensor. The ACS712 is widely used in power monitoring, load current measurement, and over-current protection applications due to its high accuracy and ease of integration with microcontrollers and other electronic systems.

Measures AC and DC current up to 30A Provides an analog output voltage proportional to the current High accuracy with low offset and temperature drift Integrated Hall effect sensor for non-invasive current measurement Small size and easy to integrate into various circuits On-chip signal conditioning and protection Technical Specifications: Sensor Type: Hall Effect Current Sensor Current Range: ±30A (AC or DC) Output Voltage Range: Typically 0V to Vcc Sensitivity: 66mV/A (typical) Operating Voltage: 5V ±5% Zero Current Offset Voltage: Vcc/2 (typical) Temperature Range: -40°C to +85°C Current Measurement Accuracy: ±1.5% of full-scale current (typical) Package Type: SOP-8 or similar Applications: Power monitoring and control Over-current protection systems Load current measurement in power supplies Motor current sensing Energy monitoring and management