{"title":"INA228 Qwiic Current Sensor Breakout","handle":"sparkfun-current-sensor-ina228-qwiic","url":"/products/sparkfun-current-sensor-ina228-qwiic","description":"This compact Qwiic breakout uses the Texas Instruments INA228 digital power monitor to measure DC current and power with high precision over I2C. The onboard 20-bit delta-sigma ADC supports readings for current, voltage, power, temperature, energy and charge accumulation.For quick wiring, the board includes two Qwiic connectors and a 3-pin screw terminal for a solderless power monitor setup. If you prefer soldered connections, a 0.1\"-spaced plated through-hole header breaks out power, SDA/SCL and the alert pin, and extra through-hole pins are provided for using a custom shunt resistor value if needed.The multi-purpose open-drain alert output can report completed conversions or trigger when configured thresholds are exceeded, helping your main processor stay asleep until a power event needs attention. SparkFun provides the INA2XX Arduino Library, plus supporting documentation including a hookup guide, schematic, KiCad files, board dimensions, datasheet and GitHub repository.Features:DC power monitoring: Monitors DC current and power with high precision over I2C.Multi-measurement: Measures current, voltage, power, temperature, energy and charge accumulation.Qwiic integration: Includes a pair of Qwiic connectors for the Qwiic ecosystem.Screw terminal: Includes a 3-pin screw terminal for solderless power monitor wiring.Custom shunt support: Provides through-hole pins for a custom shunt resistor value if needed.Soldered header option: 0.1\"-spaced plated through-hole header breaks out power, SDA/SCL and alert.Alert pin: Multi-purpose open-drain digital output for conversion complete and threshold events.Threshold Alerts: Triggers that instantly alert you if voltage, current, power, or temperature limits are exceeded.Fast Response: A rapid 75 microsecond alert response time to protect sensitive electronics.Deep Analysis: Tracks accumulated energy and charge directly on the chip.External shunt option: Optional external shunt resistor connections.Isolated VBUS: VBUS Isolated from IN± by default.Power indication: Red Power LED.Specifications:ADC: 20-Bit Delta-Sigma ADCOffset Voltage: ± µV (max)Offset Drift: ±0.01 µV/°C (max)Gain Error: ±0.05% (max)Gain Error Drift: ±20 ppm/°C (max)Common Mode Rejection: 154 dB (max)Power Monitoring Accuracy: 0.5% full scale, -40°C to +125°C (max)Energy and Charge Accuracy: 1.0% full scale (max)Alert Response Time: 75 µSCommon-Mode Range: -0.3 V to +85 VBus Voltage Sense Input: 0 V to 85 VShunt Full-Scale Differential Range: ±163.84 mV / ±40.96 mVI2C Interface: 2.94MHz High-Speed I2C InterfaceI2C Addresses: 4 Available I2C Addresses (Selected by solder jumpers)Default Address: 0x40Supply Voltage: 2.7 V to 5.5VOperational Current: 640 µAShutdown Current: 5 µAQwiic Connectors: 2x Qwiic ConnectorsScrew Terminal: 1x 3-Pin Screw TerminalMax Power Rating: 85V/10AIN± Shunt Resistor: 10mΩ (Default)External Shunt Resistor Connections: Optional external shunt resistor connectionsVBUS Isolation: VBUS Isolated from IN± by defaultThrough Hole Header: 0.1\"-spaced Through Hole HeaderThrough Hole Header Pins: Power (VCC/GND), I2C (SDA/SCL) and AlertPower LED: Red Power LEDA strong fit for precision power monitoring, battery testing, system telemetry and projects already using Qwiic or I2C hardware.","vendor":"SparkFun","product_type":"Current Sensor","in_stock":true,"options":[],"variants":[{"id":16420,"title":"Default Title","sku":"SF-SEN-31438","mpn":"SEN-31438","price":24.6,"compare_at_price":0.0,"on_sale":false,"in_stock":true,"available_quantity":89}]}