INA228 in INA219 / INA226 Current Sensors Family
The INA228 family by Texas Instruments represents a high-precision digital power monitor sub-family designed for ultra-accurate sensing over a wide common-mode range. As an evolution of the INA219 and INA226, these devices feature a 20-bit ADC to measure current, bus voltage, and temperature. They include an integrated hardware engine to calculate power, energy, and charge accumulation, offloading significant computational tasks from the host microcontroller in complex power management systems.
Variants in This Sub-Family
| Part Number | Difference | Stock |
|---|---|---|
| INA228EVM (Texas Instruments) | EVM | 18 |
| INA228AIDGSR (Texas Instruments) | IDGSR | — |
Variants within the INA228 sub-family primarily differentiate based on qualification levels and packaging. The INA228AIDGSR is the standard industrial-grade component in a VSSOP-10 package, whereas the INA228AQDGSRQ1 is AEC-Q100 Grade 1 qualified for automotive environments. Development is supported by the INA228EVM, which provides a hardware platform for evaluating the 20-bit ADC performance and testing I2C communication logic before custom PCB integration.
