INA138
High-side current shunt monitors for precise automotive and electronic applications
Manufacturer： ['rochester', 'ti']
series introduction
The **INA138 Series** is a family of high-precision, low-power current shunt monitors designed to provide accurate current measurement in a wide range of applications. These devices are engineered to deliver exceptional performance with minimal power consumption, making them ideal for battery-powered systems, portable electronics, and energy-efficient designs. The INA138 Series integrates a high-gain, precision amplifier with a low offset voltage, enabling precise current sensing across a broad range of shunt resistor values. With a wide input common-mode voltage range, these monitors can operate effectively in systems with varying voltage levels, ensuring versatility across diverse applications.
A standout feature of the INA138 Series is its ability to measure current with high accuracy, even in the presence of high common-mode voltages. This is achieved through its robust design, which supports common-mode voltages up to 36 V, independent of the supply voltage. Additionally, the series offers a fixed gain of 100 V/V, simplifying design integration and reducing the need for external components. The low quiescent current of the INA138 Series further enhances its suitability for power-sensitive applications, ensuring minimal impact on overall system efficiency.
The compact and thermally efficient packaging of the INA138 Series makes it an excellent choice for space-constrained designs, such as those found in consumer electronics, industrial automation, and automotive systems. Typical applications include battery management systems, power supply monitoring, motor control, and load current sensing. In automotive environments, the INA138 Series is particularly valuable for monitoring current in electric vehicles, hybrid systems, and advanced driver-assistance systems (ADAS), where precision and reliability are critical.
Overall, the INA138 Series combines high accuracy, low power consumption, and robust performance, making it a versatile solution for current sensing in modern electronic systems. Its design characteristics and wide operating range ensure reliable performance across a variety of industries, from consumer electronics to automotive and industrial applications.
Images for reference
SOT-23-5, SC-74A
8-TSSOP
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