[原创] Silabs Si705x低功耗高精度I2C温度传感器测量方案

Silabs公司的Si705x系列是低功耗高精度I2C数字温度传感器,具有能带隙温度传感器特性,集成了14位ADC,信号处理,校准数据和I2C接口,工作电压1.9V-3.6V,工作温度–40 到+125 ℃,精度从±0.3 ℃到±1.0 ℃,主要用在HVAC/R, 电热调节器,冷链存储,白色家当,计算机设备,手提消费类电子设备,资产跟踪等.本文介绍了Si705x系列主要特性,框图, 温度测量应用电路图,以及温度和湿度传感器评估板主要特性,电路图和PCB布局图.

The Si705x Digital Temperature Sensors offer industry-leading low power consumption and high accuracy across the entire operating voltage and temperature range. These monolithic CMOS ICs feature a band-gap temperature sensor element, an analog-to-digital converter with up to 14-bit resolution, signal processing, calibration data, and an I2C interface.

The patented use of novel signal processing and analog design enables the sensors to maintain their accuracy over a wide temperature and voltage range, while consuming very little current.

The temperature sensors are factory-calibrated and the calibration data is stored in the on-chip non-volatile memory. This ensures that the sensors are fully interchangeable, with no recalibration or software changes required.
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