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INA220AIDGST from TI,Texas Instruments

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INA220AIDGST

Manufacturer: TI

26-V, Bi-Directional, Zero-Drift, Low- or High-Side, I2C Out Current/Power Monitor 10-VSSOP -40 to 125

Partnumber Manufacturer Quantity Availability
INA220AIDGST TI 500 In Stock

Description and Introduction

26-V, Bi-Directional, Zero-Drift, Low- or High-Side, I2C Out Current/Power Monitor 10-VSSOP -40 to 125 The INA220AIDGST is a current shunt and power monitor manufactured by Texas Instruments (TI).  

### **Specifications:**  
- **Supply Voltage Range:** 2.7V to 5.5V  
- **Current Sensing Range:** ±3.2A (programmable)  
- **Bus Voltage Range:** 0V to 26V  
- **ADC Resolution:** 12-bit  
- **Interface:** I²C-compatible  
- **Accuracy:**  
  - ±0.5% (maximum) for current measurement  
  - ±1% (maximum) for bus voltage measurement  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** MSOP-10 (DGST)  

### **Descriptions:**  
The INA220 is a digital current, voltage, and power monitor with an I²C interface. It measures current via an external shunt resistor and provides digital readouts for current, bus voltage, and power.  

### **Features:**  
- Measures current, bus voltage, and power  
- High-side or low-side sensing  
- Programmable calibration value  
- Alert function for overcurrent/power conditions  
- Low power consumption (typical 1mA)  
- Internal multiplier for direct power calculation  

This information is based on TI's official datasheet for the INA220AIDGST.

Application Scenarios & Design Considerations

26-V, Bi-Directional, Zero-Drift, Low- or High-Side, I2C Out Current/Power Monitor 10-VSSOP -40 to 125

Alternative Part Number

  • INA219AIDCNR --: Same zero-drift current/power monitor family in a smaller SOT-23 package with I2C interface; very close functional equivalent if the 12V bus range and lower resolution are acceptable.
  • INA226AIDGSR --: Pin-compatible VSSOP-10 current/power monitor with I2C and higher 16-bit resolution plus programmable alert; drop-in upgrade when the wider feature set is acceptable.
  • ACS712ELCTR-20A-T --: Hall-effect isolated current sensor offering galvanic isolation and analog output; suitable alternative when isolation is required, though it needs an external ADC and has lower accuracy.

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