The INA186 is a compact, high-precision current-sense amplifier (current-shunt monitor) designed for accurate current measurement across a wide range of applications. It supports bidirectional current sensing, features zero-drift architecture, and offers a wide common-mode input voltage range from –0.2 V to +40 V, making it highly versatile for both low-side and high-side current sensing. With low quiescent current and ultra-low offset, the INA186 enables precise microamp current measurement while minimizing power consumption, making it ideal for battery-powered devices and power monitoring systems.

Features:

• Wide input range: –0.2 V to +40 V common-mode voltage

• Low supply voltage: Operates from 1.7 V to 5.5 V

• Low power consumption:

  • 48 µA typical quiescent current

  • 90 µA maximum supply current

• High accuracy:

  • ±50 µV maximum input offset voltage

  • ±1% maximum gain error

  • 120 dB minimum CMRR

  • 10 ppm/°C maximum gain drift

  • 0.5 µV/°C maximum offset drift

• Low input bias current: 500 pA typical (supports precise microamp current measurement)

• Zero-drift architecture ensures stability over time and temperature

• Bidirectional current sensing capability

• Gain options:

  • INA186A1: 25 V/V

  • INA186A2: 50 V/V

  • INA186A3: 100 V/V

  • INA186A4: 200 V/V

  • INA186A5: 500 V/V

• Integrated enable pin for power saving

• Package options: SC70 (6-pin), 2.00 mm × 1.25 mm

Applications:

• Notebook PCs and ultrabooks

• Smartphones and tablets

• Consumer battery chargers and power banks

• Baseband units (BBU)

• Server and network power supplies (PSU)

• Battery test and monitoring systems

• Overcurrent protection circuits

• Precision power management and optimization

Specifications:

• Common-Mode Input Voltage: –0.2 V to +40 V

• Supply Voltage: 1.7 V – 5.5 V

• Quiescent Current: 48 µA (typical)

• Maximum Supply Current: 90 µA

• Offset Voltage: ±50 µV (max)

• Gain Error: ±1% (max)

• Operating Temperature: –40°C to +125°C

• Package: SC70 (6-pin), 2.00 mm × 1.25 mm

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