**The LTC2996HDD#TRPBF is a high-precision, low-voltage temperature sensor from Analog Devices, specifically engineered to measure the temperature of a remote microprocessor diode or its own internal substrate with exceptional accuracy.** This device simplifies system monitoring by providing a highly integrated solution for thermal management in a wide array of computing, communication, and industrial applications.

**A primary advantage of the LTC2996 is its high accuracy, achieving ±1°C maximum error when measuring a remote diode junction over a -20°C to 100°C range.** This precision is critical for protecting sensitive and expensive processors (CPUs, GPUs, FPGAs) from thermal damage and ensuring system reliability. The sensor automatically corrects for series resistance, a common source of error in board layout, and features an **integrated beta compensation (Βcomp) algorithm** that accounts for process variations in different transistor types, ensuring consistent readings across various processors.

**Communication is handled via a standard, two-wire I²C digital interface**, which allows for easy connection to a host microcontroller with just two bus lines. This interface supports multiple address options, enabling up to eight LTC2996 devices to reside on the same bus for monitoring temperature zones across a complex system board. The I²C port is compliant with fast-mode (400kHz) standards.

Beyond remote diode sensing, the LTC2996 incorporates a **local temperature sensor** to measure its own die temperature. It also features **programmable functionality for monitoring its own VCC supply voltage**, providing additional valuable data for system health diagnostics. The device operates from a **wide supply voltage range of 2.9V to 5.5V** and is offered in a compact 10-lead 3mm x 3mm DFN package, making it suitable for space-constrained applications.

**ICGOOODFIND:** The LTC2996HDD#TRPBF stands out as a premier solution for high-accuracy thermal monitoring. Its exceptional precision, robust feature set—including beta compensation and series resistance cancellation—and simple I²C integration make it an ideal choice for designers seeking to enhance system reliability and performance through advanced temperature management.

**Keywords:** Temperature Sensor, I²C Interface, High-Accuracy, Remote Diode, Beta Compensation.