Product Overview: Texas Instruments INA186A1IDCKR

The INA186A1IDCKR is a high-precision current-sense amplifier from Texas Instruments (TI), designed to offer industry-leading performance for power management and control in a wide array of applications. This device is part of the INA186 family and is housed in a small, surface-mount SC-70 package, making it an ideal choice for space-constrained applications.

Featuring a common-mode voltage range from -0.2V to +26V, the INA186A1IDCKR is capable of monitoring shunt voltages across currents in systems with a high degree of supply variability. This makes it extremely versatile for use in both low-side and high-side current sensing configurations. The amplifier's precision is highlighted by its low offset voltage of 35 µV (max) and gain error of 0.2% (max), which ensures accurate current measurement even at low shunt voltages.

The INA186A1IDCKR offers a fixed gain of 20 V/V, providing a balance between sensitivity and dynamic range. This allows it to accurately amplify small differential voltage signals across a current-sensing resistor while rejecting common-mode voltage, which is particularly useful in motor control, battery management, and overcurrent protection circuits.

With a wide supply voltage range of 2.7V to 5.5V, the device is compatible with a variety of power rails, further enhancing its adaptability across different system designs. The quiescent current is also notably low at 260 µA (typ), which makes the INA186A1IDCKR an energy-efficient option for battery-powered and energy-conscious applications.

Additional features of the INA186A1IDCKR include a bandwidth of 350 kHz, enabling it to handle fast current transients, and an operating temperature range of -40°C to +125°C, ensuring reliable performance across a wide range of environmental conditions. The device also includes a filter pin for optional external filtering, providing designers with the flexibility to optimize noise performance for specific applications.

Overall, the INA186A1IDCKR from Texas Instruments is a robust, precise, and versatile current-sense amplifier that can be integrated into various electronic systems, delivering high accuracy and reliability in current measurement tasks.