INA199A1DCKR INA199A2DCKR INA199A3DCKR INA199B1DCKR INA199B2DCKR Audio Power Amplifier IC Current Sense Amplifiers Vltg

INA199A1DCKR INA199A2DCKR INA199A3DCKR INA199B1DCKR INA199B2DCKR Audio Power Amplifier IC Current Sense Amplifiers Vltg

1 Features

• Wide Common-Mode Range: –0.3 V to 26 V

• Offset Voltage: ±150 μV (Maximum)

  (Enables Shunt Drops of 10-mV Full-Scale)

• 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

2 Applications

• Notebook Computers

• Cell Phones

• Qi-Compliant Wireless Charging Transmitters

• Telecom Equipment

• Power Management

• Battery Chargers

3 Description

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 UQFN- 10 packages.

Device Information