傳感器博覽會(huì)：從無線傳感器網(wǎng)絡(luò)到數(shù)字溫度傳感器

　　而無線傳感器網(wǎng)絡(luò)，能量收集，和MEMS技術(shù)–都具有一定的“哇”的因素–可能獲得最大的關(guān)注，在最近的傳感器博覽會(huì)的展覽，你不應(yīng)該減少更多的商品–的重要性但急需的–部件如數(shù)字溫度傳感器。

　　溫度傳感器變得越來越重要，因?yàn)樵O(shè)計(jì)師們?cè)噲D盡可能多地將它們的組件塞入它們的板上，這通常會(huì)導(dǎo)致更高的熱量產(chǎn)生，因此需要大大改進(jìn)溫度監(jiān)控和管理。

　　因此，當(dāng)涉及到移動(dòng)設(shè)備的溫度傳感器或者應(yīng)用程序時(shí)，設(shè)計(jì)者們希望實(shí)現(xiàn)更低的功耗、更小的尺寸和更高的精度。

　　While smaller size and lower power requirements are self-explanatory， what is so important about higher accuracy？ Well， according to Analog Devices （ADI）， higher accuracy eliminates the need to average results， delivers faster data measurement， and improves energy efficiency and reliability.

　　For designers looking for extremely high accuracy， ADI has developed two digital temperature sensors that achieve a ±25 °C accuracy over a wide temperature range of -20 ° to +105 °C. ADI says these fully calibrated， 16-bit resolution temperature sensors can “cost-effectively” replace thermistors and resistance temperature detectors.

　　In addition， the high-precision， low-drift ADT7420 and ADT7320 devices offer ±0.5 °C accuracy over a -40 ° to +125 °C temperature range.