INA214AIDCKR

The INA21x are voltage-output, shunt monitors (also known as current-sense amplifiers). These devices typically provide overcurrent protection and precision current measurement for system optimization, and are also commonly used in closed-loop feedback circuits. The series can sense the voltage drop across a shunt resistor over a common-mode voltage range of –0.3V to 26V, independent of the supply voltage. Six fixed gains are available: 50V/V, 75V/V, 100V/V, 200V/V, 500V/V, or 1000V/V. The series employs a zero-drift architecture with low offset, enabling current sensing with a maximum full-scale voltage drop across the shunt resistor of less than 10mV. The series operates from a single supply of 2.7V to 26V with a maximum quiescent current of 100μA. All device versions are rated for operation over an extended temperature range of –40°C to +125°C, available in SC70 and UQFN packages.

Applications

• Laptop computers
• Mobile phones
• Telecom equipment power management
• Battery chargers

Key features

• Wide common-mode voltage range: -0.3V to 26V
• Offset voltage: ±35μV (maximum, INA210) (enables shunt voltage drops as low as 10mV full-scale)
• Accuracy:
• Gain error (maximum over temperature): – ±0.5% (version C) – ±1% (versions A and B)
• 0.5μV/°C offset drift (maximum)
• 10ppm/°C gain drift (maximum)
• Gain options:
• INA210: 200V/V
• INA211: 500V/V
• INA212: 1000V/V
• INA213: 50V/V
• INA214: 100V/V
• INA215: 75V/V
• Quiescent current: 100μA (maximum)
• SC70 and thin UQFN packages: all versions