Product Description
| Product Introduction The INA226 has a maximum offset voltage of 10 microvolts (μV) and a maximum gain error of 0.1%, resulting in 10 times greater accuracy than the industry's leading competitive device. This device is a complete 16-bit, single-chip solution for programmable measurement of current, voltage, and power over a digital I2C interface. The INA226 offers significant advantages for designers of servers, telecommunications equipment, computers, electronic management equipment, and test equipment who require precise power measurement. |
Product Features ② The industry's highest accuracy, with a maximum offset voltage of 10μV and a maximum gain error of 0.1%, not only achieves higher accuracy at low currents but also allows the use of smaller shunt resistors, reducing I/R losses. ③ Independently programmable conversion time and sample averaging technology simplify customization to each system's speed requirements and reduce software and memory requirements. ④ A maximum quiescent current of 420μA and a maximum shutdown current of 2μA support efficient operation. Even with its integrated ADC and power multiplexer, the INA226 consumes 3.5% less power than discrete solutions from competing products. ⑤ A common-mode rejection ratio (CMRR) of 140dB and a common-mode voltage (CMV) of 36V ensure minimal or no offset voltage variation across the entire operating range, simplifying error analysis. |
| Type | Description |
| Power supply | 2.7-5.5V, 3.3V recommended |
| Common mode input | 12V |
| Sensing bus | 0-36V |
| Voltage range | 0.1% gain error (max) |
| High accuracy | 10μV offset (max) |
| ADC accuracy | 16-bit |
| I2C communication interface | Fast mode 1kHz to 400kHz High-speed mode 1kHz to 3.94MHz |
| Operating temperature | -40°C to 125°C |
| Dimensions | 21mm x 19mm |
| Weight | Approximately 2.4g |
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