**LT1783IS5#TRMPBF: A High-Side Current Sense Amplifier for Precision Measurement**

In the realm of electronic design, accurately measuring current without disrupting the power path is a critical challenge. The **LT1783IS5#TRMPBF** from Analog Devices stands out as a premier solution, a high-side current sense amplifier engineered specifically for **precision measurement** across a wide array of applications, from battery management and power supplies to industrial control systems.

The fundamental advantage of high-side current sensing, where the shunt resistor is placed between the power supply and the load, is its ability to detect load faults, including short circuits, and its immunity to ground noise. The LT1783IS5#TRMPBF excels in this configuration. Its architecture allows it to operate with a common-mode voltage range that extends from **-0.3V to 60V**, independent of the supply voltage. This capability is crucial for monitoring currents in systems powered by higher voltages, such as 12V, 24V, or 48V rails, providing designers with exceptional flexibility.

Precision is the cornerstone of this device. It integrates a **fixed gain of 20 V/V** (for the 'S5' variant), which is laser-trimmed to ensure high accuracy and minimal gain error. This eliminates the need for external precision resistors and associated calibration, simplifying board design and reducing both component count and overall cost. The amplifier's input offset voltage is exceptionally low, minimizing errors introduced by the amplifier itself, which is paramount when measuring small voltage drops across a current sense resistor (shunt). This results in highly accurate current data, essential for systems requiring precise monitoring and control of power.

Housed in a compact **5-Lead SOT-23 package**, the LT1783IS5#TRMPBF is ideal for space-constrained applications. Despite its small size, it is robust and designed for stability over a wide temperature range. Its single-supply operation, capable of functioning from a **single Li-Ion cell or a 3.3V/5V rail**, further enhances its versatility, making it a perfect fit for portable and low-voltage equipment.

ICGOOFind: The LT1783IS5#TRMPBF is a highly integrated, precise, and versatile high-side current sense amplifier. Its wide common-mode voltage range, fixed and accurate gain, and compact form factor make it an superior choice for designers seeking to implement reliable and accurate current monitoring without compromising performance or board space.

**Keywords:** High-Side Current Sensing, Precision Measurement, Wide Common-Mode Range, Fixed Gain Amplifier, SOT-23 Package.