Temperature Sensor Digital, Local -40°C ~ 125°C 10 b 8-MSOP

The MCP9808T-E/MS is a high-accuracy digital temperature sensor developed by Microchip Technology for precision thermal monitoring applications. The device communicates through a standard I²C-compatible serial interface and is optimized for low-power embedded systems requiring accurate ambient temperature measurement. It integrates internal temperature sensing, analog-to-digital conversion, programmable alert functionality, and configurable power management within a compact MSOP package.

The sensor is designed for applications including industrial monitoring, consumer electronics, IoT devices, thermal management systems, medical instrumentation, and battery-powered portable equipment. Its low operating current and shutdown capability make it suitable for energy-efficient systems where thermal accuracy and minimal power consumption are critical.

The device supports programmable temperature limits and interrupt generation for over-temperature events, enabling autonomous thermal supervision without continuous host processor intervention. The MCP9808T-E/MS maintains high measurement accuracy across a wide operating temperature range and offers stable digital output without requiring external calibration components.

Electrical Characteristics

Supply voltage operation supports low-voltage and standard logic systems. Low operating current enables efficient continuous monitoring. Shutdown mode significantly reduces power consumption during inactive periods. Digital I²C interface supports standard and fast communication modes. Integrated temperature conversion engine provides direct digital temperature output.

Temperature Sensing Features

High-accuracy ambient temperature measurement. Wide operating temperature range suitable for industrial environments. Programmable resolution for balancing conversion speed and precision. Configurable upper, lower, and critical temperature alert thresholds. Integrated hysteresis control for stable thermal event detection.

Communication Interface

I²C-compatible serial communication interface. Configurable slave addressing for multi-device bus operation. Supports read and write access to internal configuration registers. Compatible with common microcontrollers and embedded processors.

Functional Features

Integrated alert output for thermal event signaling. Programmable interrupt and comparator operating modes. Internal registers support temperature monitoring and device configuration. Power-on reset circuitry ensures predictable startup behavior. Device identification registers support system-level verification.

Mechanical Characteristics

Package type is MSOP with compact surface-mount footprint. Suitable for automated PCB assembly processes. RoHS-compliant and lead-free manufacturing.

Typical Applications

Industrial temperature monitoring systems. Portable battery-powered electronics. Embedded microcontroller systems. Thermal protection and supervision circuits. Consumer and IoT sensing devices. Medical and laboratory instrumentation.

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