LM75 temperature sensor module

This project is used to verify the solution verification board design of the temperature sensor LM75BD (product number C34565) of Lichuang Mall. Compatible with other SOIC-8_150mil packaged LM75 chips.

LM75B is a temperature sensor with a high-speed I2C interface that can directly convert temperature into a digital signal within the temperature range of -55°C to +125°C, and can achieve an accuracy of 0.125°C. The MCU can directly read the data in its internal registers through the I2C bus, and can operate the 4 data registers through I2C to set different working modes. LM75A has 3 optional logical address pins, allowing 8 devices to be connected to the same bus at the same time without address conflicts.

Features:

I2C bus interface, device address 7-bit slave address 1001xxx, 8 devices can be expanded on the same bus;

power supply range: 2.8V ~ 5.5V, temperature range: -55℃ ~ +125℃;

11-bit ADC provides temperature Resolution reaches 0.125℃;

temperature accuracy:

±2℃ (-25℃~100℃); ±3℃ (-55℃~125℃)

PCB:

![IMG_20200502_182626.jpg]
Test results:

![LM75_1.png]