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INA219AID
+BOMIC CURRENT MONITOR 1% 8SOIC
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ManufacturerTexas Instruments
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Mfr. Part #INA219AID
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Package SOIC (D)-8
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In Stock5663
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Specifications
| Attribute | Value |
| Package | Tube |
| Series | Zero-Drift |
| ProductStatus | Active |
| Function | Current Monitor |
| SensingMethod | High-Side |
| Accuracy | ±1% |
| Voltage-Input | 0V ~ 26V |
| Current-Output | 10mA |
| OperatingTemperature | -40°C ~ 125°C |
| MountingType | Surface Mount |
| Package/Case | 8-SOIC (0.154, 3.90mm Width) |
Overview
Description
Key features of the INA219AID include a high-side current sensing capability that allows it to monitor the load without disrupting the ground path. It provides a digital output through an I2C interface, which makes it easy to integrate with microcontrollers and other digital systems for data logging and real-time monitoring.
The device can measure voltage drops across a shunt resistor and convert them to current readings with high precision, typically with a resolution of up to 0.1 mA. Additionally, it can handle a wide range of common-mode voltages, enhancing its versatility across different applications.
The INA219AID's compact size and low power consumption make it ideal for use in portable electronics, while its accuracy and robustness make it suitable for more demanding industrial environments.
Equivalent
1. MAX4173 - A high-side current-sense amplifier from Maxim Integrated.
2. INA226 - A digital current and power monitor with an I2C interface by Texas Instruments.
3. INA220 - Another I2C output current/power monitor by TI.
4. LTC4151 - A high-side power monitor with I2C by Analog Devices.
5. ADS1115 - A precision ADC from TI, suitable for similar sensing applications.
These alternatives offer similar current sensing and monitoring functions with various additional features.
Features
1. High Accuracy: Provides 1% maximum error over the entire temperature range and a resolution of 0.1 mA, enabling precise current and power monitoring.
2. Wide Range Measurements: Supports bus voltage measurements from 0V to 26V, allowing for versatile applications.
3. Bidirectional Sensing: Capable of measuring current flow in both directions, suitable for charging and discharging systems.
4. Programmable Gain and Conversion Times: Offers adjustable gain settings and conversion times to tailor performance for specific applications.
5. Low Power Consumption: Operates at a low current consumption of 1 mA, making it suitable for battery-powered devices.
6. Small Package Size: Comes in a compact SOT-23 package, ideal for space-constrained applications.
7. I²C Interface: Compatible with a standard I²C communication protocol for easy integration with microcontrollers.
These features make the INA219AID suitable for a variety of applications, including battery management systems, power supply monitoring, and energy metering.
Pinout
1. VCC (Pin 1): Power supply input, typically 3.0 to 5.5 V.
2. GND (Pin 2): Ground connection.
3. SDA (Pin 3): Serial Data Line for I2C communication.
4. SCL (Pin 4): Serial Clock Line for I2C communication.
5. ADDR (Pin 5): Address pin to set different I2C addresses.
6. AIN+ (Pin 6): Input for high-side voltage measurement (connected to the load).
7. AIN- (Pin 7): Input for high-side voltage measurement (connected to the bus).
8. VREF (Pin 8): Optional reference voltage input (commonly connected to ground).
The INA219AID facilitates precise current, voltage, and power monitoring in various applications, offering an I2C interface for easy integration with microcontrollers.