SHT21， 新一代 Sensirion 湿度和温度传感

器在尺寸与智能方面建立了新的标准：它嵌

入了适于回流焊的双列扁平无引脚DFN 封装，

底面 3 x 3mm ，高度1.1mm。传感器输出经过标

定的数字信号，标准 I2C 格式。

SHT21 配有一个全新设计的CMOSens® 芯

片、一个经过改进的电容式湿度传感元件和

一个标准的能隙温度传感元件，其性能已经

大大提升甚至超出了前一代传感器（SHT1x

和SHT7x）的可靠性水平。例如，新一代湿

度传感器，已经经过改进使其在高湿环境下

的性能更稳定。-SHT21, a new generation of Sensirion humidity and temperature sensors in the size and intelligence to establish a new standard: it is suitable for reflow embedded dual-column flat no-lead DFN package, the bottom 3 x 3mm, height 1.1mm. After calibration of the digital sensor output signal, the standard I2C format. SHT21 with a new design CMOSens ®　chip, an improved capacitive humidity sensing element and a standard bandgap temperature sensor, its performance has been greatly enhanced and even exceed the previous generation of sensors (SHT1x and SHT7x) of reliability level. For example, a new generation of humidity sensors, have improved their performance in the humid environment more stable.