UMW TMP75AIDGKR Digital Temperature Sensor IC - MSOP-8 Package

The TMP75AIDGKR uses a standard I2C (also called Two-Wire or SMBus) digital interface. It communicates temperature data directly to a host microcontroller (like an Arduino, ESP32, or Raspberry Pi) using the SDA and SCL lines, supporting multiple device addresses on the same bus.

This sensor has a wide operating voltage range from 1.4 volts to 5.5 volts. This makes it directly compatible with 1.8V, 3.3V, and 5V logic systems without requiring a level shifter, which is ideal for low-power and mixed-voltage PCB designs.

The sensor typically offers an accuracy of ±1°C within the -10°C to +85°C range. Yes, it is designed to measure the full range from -55°C to +125°C, making it suitable for applications in harsh environments, cold storage, or automotive under-hood monitoring.

The sensor requires minimal external components. Typically, only standard I2C pull-up resistors (e.g., 4.7kΩ) on the SDA and SCL lines and a local bypass capacitor (e.g., 100nF) close to the VCC pin are needed for stable operation, as per the manufacturer's datasheet recommendations.