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[原创] Maxim MAX30208±0.1℃精度I2C数字温度传感器解决方案

关键词:可穿戴 仪器仪表 温度传感器 MAX30208

时间:2019-08-16 10:48:54       来源:中电网

Maxim公司的MAX30208是低功耗高精度I2C数字温度传感器,温度范围+30℃到 +50℃的精度为±0.1℃,0℃到+70℃温度范围的精度为±0.15℃.MAX30208具有16位分辨率(0.005℃).器件具有标准I2C串口和主控制器进行通信.器件包括用于温度数据的32字FIFO,同时还包括高和低温度阈值告警.低功耗1.7-3.6V工作电压,测量时的工作电流67μA,待机时的电流为0.5μA,积分时间为15ms,小型2mm x 2mm x 0.75mm, 10-引脚薄 LGA封装.主要用在可穿戴身体温度监视器,医疗温度计和物联网(IoT)传感器.本文介绍了MAX30208主要优势和特性,简化框图,功能框图和单点与多点温度检测图,以及评估系统MAX30208 EVS主要特性,电路图,材料清单和PCB设计图.

The MAX30208 operates from a 1.7V to 3.6V supply voltage, and is a low-power, high-accuracy digital tem­perature sensor with ±0.1℃ accuracy from +30℃ to +50℃ and ±0.15℃ accuracy from 0℃ to +70℃. The MAX30208 has 16-bit resolution (0.005℃).

The device uses a standard I2C serial interface to com­municate with a host controller. Two GPIO pins are avail­able. GPIO1 can be configured to trigger a temperature conversion, while GPIO0 can be configured to generate an interrupt for selectable status bits.

The MAX30208 includes a 32-word FIFO for the tempera­ture data and also includes high and low threshold digital temperature alarms. The device is available in a 2mm x 2mm x 0.75mm, 10-pin Thin LGA package.

MAX30208主要优势和特性:
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