SGP41
室內空氣品質量測VOC傳感器
- 基於MOx的室內空氣品質量應用的氣體傳感器
- 卓越的長期穩定性和使用壽命
- I2C通訊數位輸出介面
- 微小的DFN封裝(2.44 x2.44 x 0.85mm3)
- 微低功耗2.6mA at 3.3V
- 捲帶封裝，可回流焊接
產品描述
SGP41 是一種數位氣體傳感器，易於整合到空氣淨化器或有控制需求的通風系統中。 Sensirion 的 CMOSens ® 技術在單芯片上提供完整、方便使用的傳感器系統，具有數位 I2C接口和溫控微型加熱板，提供VOC和基於 NO x 的室內空氣質量信號。感測元件和氣體指數演算法都具極高的穩健性，可抵抗現實世界中存在的污染氣體，從而實現獨特的長期穩定性和低漂移。非常小的2.44 x 2.44 x 0.85mm 3 DFN 封裝尺寸利於在有限空間內應用。Sensirion 最先進的生產工藝確保極高的再現性和可靠性。捲帶式封裝以及適用於標準 SMD 組裝工藝的特性使 SGP41 注定適用於大批量應用。
氣體傳感器 規格
| Parameter | Conditions | Value |
|---|---|---|
| Output signals | Digital processed value (VOC Index) | Min: 0 VOC Index points, Max: 550 VOC Index points |
| Digital raw value (SRAW) | Min: 0 ticks, Max: 65’535 ticks | |
| Measurement range | Ethanol in clean air | Min: 0ppm, Max: 1’000ppm |
| Specified range | Ethanol in clear air | Min: 0.3ppm, Max: 30ppm |
| Device-to-device variation | VOC Index |
< ±15 VOC Index points or < ±15% VOC Index m.v. (the larger) |
| Repeatability | VOC Index |
< ±5 VOC Index points or < ±5% VOC Index m.v. (the larger) |
| Limit of detection | Ethanol in specified range |
< 50ppb or < 10% of concentration setpoint(the larger) |
| Response time |
Changing concentration from 5 to 10 ppm of ethanol, at sampling
interval of 1 s τ63 τ90 |
< 10s, Typ. < 30s, Typ. |
| Switch-on behavior | Time until reliably detecting VOC events | < 60s, Typ. |
| Time until specifications in this table are met | < 1h, Typ. | |
| Sensitivity |
SRAW, doubling VOC concentration Ethanol in specified range 5 to 10 ppm of ethanol |
−870ticks, Typ. Min:-710ticks, Typ:-870ticks, Max:−1’030ticks |
| Recommended sampling interval | VOC Index | 1s, Typ. |
| SRAW | Min:10s, Typ:1s, Max:0.5s |
