Case Study Test Page Number 3


Customer's Needs

  • Si7023: ± 3% RH (maximum) @ 0–80% RH
  • Si7022: ± 4% RH (maximum) @ 0–80% RH
  • Si7007: ± 5% RH (maximum) @ 0–80% RH


  • Wide operating voltage range (1.9 to 3.6 V)
  • Up to -40 to +125 °C operating range

​Si7007/22/23 2nd Generation PWM Relative Humidity and Temperature Sensors

Designers will appreciate the unique set of features offered by the Si70xx family.

The Si7007/22/23 devices are Silicon Labs’ 2nd generation PWM relative humidity and temperature sensors. All members of this device family combine fully factory-calibrated humidity and temperature sensor elements with an analog to digital converter, signal processing and two PWM outputs. The PWM outputs can easily be filtered to produce an analog voltage. Patented use of industry-standard low-K polymer dielectrics provides excellent accuracy and long term stability, along with low drift and low hysteresis. The Si7022/23 devices are designed for high-accuracy applications, while the Si7007 is targeted toward lower-accuracy applications that traditionally have used discrete RH/T sensors.Designers will appreciate the unique set of features offered by the Si70xx family. With full factory calibration, Si70xx devices require no additional RH/temperature calibration during PCB assembly. For protection against dust, dirt and chemical contaminants during PCB reflow and during device operation, all members of the Si70xx family can be fitted with an optional factory-installed cover.

...Happy to see that Simplicity Studio is cross-platform – it was super easy to get, install and launch. The wizards made it easy to license the Keil complier without much fuss. Brilliant idea to have Simplicity Studio auto-detect the connected dev-board – it was easy to find source code and have the project already configured for my hardware....
Tim Armstrong | Engineer at RANCID

Simplicity Studio 4.0

Simplicity Studio simplifies the IoT development process with one-click access to everything developers need to complete their projects using an integrated development environment (IDE) based on Eclipse 4.5. Simplicity Studio includes a powerful suite of tools for energy profiling, configuration and wireless network analysis, as well as demos, software examples, complete documentation, technical support and community forums. These integrated tools and features combine to make embedded development simple and productive for IoT developers of all skill levels. Simplicity Studio provides built-in intelligence to automatically detect the connected 8-bit or 32-bit MCU or wireless SoC, graphically configure the device, and show supported configuration options to help developers get their projects underway in minutes.

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