INA211AIDCKR

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. This family of devices senses 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 gain options are available: 50V/V, 75V/V, 100V/V, 200V/V, 500V/V, or 1000V/V. The zero-drift architecture and low offset of this family enable current sensing with a maximum full-scale voltage drop across the shunt resistor of less than 10mV. This family of devices operates from a single supply voltage 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, and are available in SC70 and UQFN packages.

Applications

• Laptops
• 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)
• Gain error (maximum over temperature): ±0.5% (version C), ±1% (versions A and B)
• Offset drift: 0.5μV/°C (maximum)
• Gain drift: 10ppm/°C (maximum)
• Gain selection: 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