INA199B2DCKR

The INA199 series of voltage-output, current-shunt monitors (also called current-sense amplifiers) are commonly used for overcurrent protection, precision current measurement for system optimization, or in closed-loop feedback circuits. This series of devices can sense drops across shunt resistors at common mode voltages from -0.3 V to 26 V, independent of the supply voltage. Three fixed gains are available: 50 V/V, 100 V/V, and 200 V/V. The low offset of the zero-drift architecture enables current sensing with maximum drops across the shunt as low as 10-mV full-scale. These devices operate from a single 2.7-V to 26-V power supply, drawing a maximum of 100-μA of supply current. All versions are specified from -40°C to 125°C, and offered in both SC70-6 and thin UQFN10 packages.

Applications

• Notebook Computers
• Cell Phones
• Qi-Compliant Wireless Charging Transmitters
• Telecom Equipment
• Power Management
• Battery Chargers

Key features

• Wide Common-Mode Range: -0.3 V to 26 V
• Offset Voltage: ±150 μV (Maximum)
• Accuracy: Gain Error (Maximum Over Temperature): – ±1% (C Version) – ±1.5% (A and B Versions)
• 0.5-μV/°C Offset Drift (Maximum)
• 10-ppm/°C Gain Drift (Maximum)
• Choice of Gains:
• INA199x1: 50 V/V
• INA199x2: 100 V/V
• INA199x3: 200 V/V
• Quiescent Current: 100 μA (Maximum)
• Packages: 6-Pin SC70, 10-Pin UQFN