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濕度感測器

HDC2021

現行

2% RH 超低功耗數位相對濕度感測器、膠膜上蓋

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現在提供此產品的更新版本

open-in-new 比較替代產品
功能相同，但引腳輸出與所比較的產品不同
HDC3021 現行 具有可移除式膠膜上蓋的 0.5% RH 數位濕度感測器 Improved accuracy (±0.5 %RH), smaller QFN package with removable tape for conformal coating
HDC3021-Q1 現行 具有可移除式膠膜上蓋的車用 0.5% RH 數位濕度感測器 Automotive (Q100) qualified, higher accuracy (±0.5 %RH) in QFN package (2.5 mm × 2.5 mm)

HDC2021

現行
產品規格表 立即訂購

產品詳細資料

Relative humidity accuracy (typ) (%RH) 2 Temperature accuracy (typ) (°C) 0.2 Relative humidity operating range (typ) (%RH) 0 to 100 Supply voltage (min) (V) 1.62 Supply voltage (max) (V) 3.6 Average supply current (typ) (A) 0.55 at 1 sample/sec Operating temperature range (°C) -40 to 125 Interface type I2C Rating Catalog
Relative humidity accuracy (typ) (%RH) 2 Temperature accuracy (typ) (°C) 0.2 Relative humidity operating range (typ) (%RH) 0 to 100 Supply voltage (min) (V) 1.62 Supply voltage (max) (V) 3.6 Average supply current (typ) (A) 0.55 at 1 sample/sec Operating temperature range (°C) -40 to 125 Interface type I2C Rating Catalog
WSON (DEB) 6 9 mm² 3 x 3
  • Factory-installed polyimide tape to protect sensor during assembly
  • RH measurement range: 0% to 100%
  • Temperature measurement range: –40°C to 125°C

  • Humidity accuracy: ±2% (typical), ±3% (maximum)

  • Temperature accuracy: ±0.2°C (typical), ±0.4°C (maximum)

  • Supply voltage range: 1.62 V to 3.6 V
  • I2C interface compatibility
  • 50 nA sleep mode current
  • 550 nA average supply current (11-bit accuracy option, 1 measurement/second)

  • Continuous conversion or one-shot measurement mode

  • Backward-compatible with HDC2080
  • Factory-installed polyimide tape to protect sensor during assembly
  • RH measurement range: 0% to 100%
  • Temperature measurement range: –40°C to 125°C

  • Humidity accuracy: ±2% (typical), ±3% (maximum)

  • Temperature accuracy: ±0.2°C (typical), ±0.4°C (maximum)

  • Supply voltage range: 1.62 V to 3.6 V
  • I2C interface compatibility
  • 50 nA sleep mode current
  • 550 nA average supply current (11-bit accuracy option, 1 measurement/second)

  • Continuous conversion or one-shot measurement mode

  • Backward-compatible with HDC2080

The HDC2021 is an integrated relative humidity and temperature sensor with a factory-installed polyimide tape cover over the opening of the relative humidity sensor element. The tape cover provides protection against pollutants that can appear in certain stages of the manufacturing process, such as SMT assembly, PCB board wash, and conformal coating. The tape design allows for a full conformal coating of the PCB, and includes an adhesive free corner tab for quick removal using tweezers.

The device is backward-compatible with the HDC2080, providing high accuracy measurements with very low power consumption in a small DFN package. The capacitive-based sensor includes new integrated digital features and a heating element to dissipate condensation and moisture. The digital features include programmable interrupt thresholds to provide alerts and system wake-ups without requiring a microcontroller to continuously monitor the system. Combined with programmable sampling intervals, low power consumption, and 1.8-V supply voltage support, the is designed for ultra-low power battery-operated systems.

The HDC2021 is an integrated relative humidity and temperature sensor with a factory-installed polyimide tape cover over the opening of the relative humidity sensor element. The tape cover provides protection against pollutants that can appear in certain stages of the manufacturing process, such as SMT assembly, PCB board wash, and conformal coating. The tape design allows for a full conformal coating of the PCB, and includes an adhesive free corner tab for quick removal using tweezers.

The device is backward-compatible with the HDC2080, providing high accuracy measurements with very low power consumption in a small DFN package. The capacitive-based sensor includes new integrated digital features and a heating element to dissipate condensation and moisture. The digital features include programmable interrupt thresholds to provide alerts and system wake-ups without requiring a microcontroller to continuously monitor the system. Combined with programmable sampling intervals, low power consumption, and 1.8-V supply voltage support, the is designed for ultra-low power battery-operated systems.
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類型 標題 日期
* Data sheet HDC2021 High-Accuracy, Low-Power Humidity and Temperature Sensor datasheet (Rev. A) 2020年 6月 26日
* User guide HDC20XX Silicon User's Guide PDF | HTML 2020年 11月 30日
Application brief Using RH to Derive Vapor Pressure, Dew Point, Absolute Humidity, and Enthalpy PDF | HTML 2023年 2月 9日
White paper 85°C/85% RH Accelerated Life Test Impact on Humidity Sensors (Rev. A) PDF | HTML 2021年 9月 7日
Technical article Why long-term consistent performance matters for relative humidity sensors PDF | HTML 2021年 6月 21日
Application note Is a Protective Cover Needed for Humidity Sensors? PDF | HTML 2021年 4月 21日
Technical article How accurate sensing in HVAC systems improves efficiency and saves consumers money PDF | HTML 2021年 1月 26日
Technical article Interface to sensors in seconds with ASC Studio PDF | HTML 2020年 11月 12日
Application note Programming the HDC20X0 Devices 2018年 8月 29日
Application note Humidity Sensor: Storage and Handling Guidelines 2017年 8月 28日
Application note Optimizing Placement and Routing for Humidity Sensors (Rev. A) 2017年 3月 6日

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開發板

HDC2080EVM — HDC2080 低功耗濕度和溫度感測器評估模組

The HDC2080EVM (evaluation module) is an easy to use, plug-and-play, platform for evaluating the functionality and performance of the HDC2080 humidity and temperature sensor.  The EVM utilizes a USB interface with MSP430F5528 microcontroller to establish communication between the HDC2080 (...)
使用指南: PDF
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