**LT6106HS5#TRMPBF: A High-Side Current Sense Amplifier for Precision Measurement**

In the realm of electronic design, accurately measuring current is a fundamental requirement for systems ranging from battery management and power supply control to motor drives and instrumentation. **High-side current sensing** has emerged as a preferred technique, as it allows for monitoring the current directly from the power supply rail without disrupting the ground path. The **LT6106HS5#TRMPBF** from Analog Devices is a dedicated current sense amplifier engineered to excel in this critical role, offering a compelling blend of precision, versatility, and integration.

The core function of the LT6106HS5 is to amplify a small differential voltage developed across a shunt resistor placed in series with the power supply. Its architecture is specifically designed to handle the challenging common-mode voltages present in high-side configurations. **A key advantage of the LT6106HS5 is its ability to operate with common-mode voltages from 2.7V up to 44V, independent of the supply voltage.** This allows it to function correctly even during load-dump or other high-voltage transient events in automotive or industrial environments, making it an exceptionally robust solution.

Precision is paramount in measurement applications, and the LT6106HS5 delivers on this front. The device features a **fixed gain of 20 V/V**, which is laser-trimmed for accuracy. This precise gain eliminates the variability associated with external resistor dividers, ensuring consistent and reliable measurements. The amplifier's input offset voltage is minimized, which is critical for accurately sensing very small voltage drops across the current shunt resistor, especially at low current levels. This results in a highly accurate output voltage that is a clean, scaled representation of the load current.

Housed in a compact **SOT-23-5 package**, the LT6106HS5#TRMPBF offers a highly integrated solution that saves valuable board space. Its simplicity of use is a significant benefit; often, only a few external bypass capacitors are needed to create a complete current sensing solution. This simplicity accelerates design time and reduces the overall bill of materials. Furthermore, the device's low supply current makes it suitable for power-sensitive and portable applications.

The output of the LT6106HS5 can be directly interfaced with an analog-to-digital converter (ADC) of a microcontroller, enabling real-time digital current monitoring, system protection, and smart control algorithms. This capability is essential for implementing **over-current protection, battery charging/discharging monitoring, and system diagnostics.**

**ICGOOODFIND:** The LT6106HS5#TRMPBF stands out as a superior solution for high-side current sensing. Its high common-mode voltage range, precision-trimmed gain, and compact form factor make it an ideal choice for designers seeking to add robust, accurate, and simple current measurement capabilities to their systems across a wide range of industries.

**Keywords:**

* **High-Side Current Sensing**

* **Precision Measurement**

* **Common-Mode Voltage**

* **Shunt Resistor**

* **Current Sense Amplifier**