INA199C2QDCKRQ1

The INA199-Q1 is a voltage-output, current-sense amplifier that can sense drops across shunts at common-mode voltages from –0.1 V to 26V, independent of the supply voltage. Three fixed gains are available: 50V/V, 100V/V, and 200V/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.

This device operates from a single 2.7-V to 26-V power supply, drawing a maximum of 100 µA of supply current. All gain options are specified from –40°C to +125°C, and are offered in a 6-pin SC70 package.

Key Features

• AEC-Q100 qualified for automotive applications:
  • Temperature grade 1: –40°C to 125°C, T_A
• Functional Safety-Capable
  • Documentation available to aid functional safety system design
• Wide common-mode range: –0.1 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% (B version)
  • Offset drift: 0.5-µV/°C (maximum)
  • Gain drift: 10-ppm/°C (maximum)
• Choice of gains:
  • INA199x1-Q1: 50 V/V
  • INA199x2-Q1: 100 V/V
  • INA199x3-Q1: 200 V/V
• Quiescent current: 100 µA (maximum)
• Package: 6-pin SC70