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INA226 Voltage and current power monitor alarm function 36V bidirectional I2C
Manufacturer
Manufacturer Product Number
INA226
Description
INA226 Voltage and current power monitor alarm function 36V bidirectional I2C
Package Condition
Bulk
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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. |
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Product Features ① A single-chip solution with an I2C interface supports current, voltage, and power measurements. It eliminates the need for external multiplexers or ADCs, simplifying board design and addressing layout constraints. 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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INA226 Voltage and current power monitor alarm function 36V bidirectional I2C
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