Si7007/22/23 2nd Generation Relative Humidity and Temperature Sensor with PWM Outputs

The Si7007/22/23 family is our second generation PWM relative humidity and temperature sensors. All devices combine fully factory-calibrated humidity and temperature sensor elements with an analog-to-digital converter, signal processing and two PWM outputs. Si7022/23 sensors are designed for high-accuracy applications, while the Si7007 is targeted toward lower-accuracy applications traditionally using discrete RH/T sensors.

Take advantage of 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 Si70xx sensors can be fitted with an optional factory-installed cover. PWM outputs of the entire product portfolio can be easily 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.

PWM outputs
2
Temperature range
-40 to +125 °C

Si7007/22/23 Humidity Sensor Common Specs

  • Precision Relative Humidity Sensor:
    • Si7023/21: ± 3% RH (maximum) @ 0–80% RH
    • Si7022: ± 4% RH (maximum) @ 0–80% RH
    • Si7007: ± 5% RH (maximum) @ 0–80% RH
  • Temperature Sensor:
    • Si7022/23: ±0.4 °C accuracy (maximum) @ -10 to +85 °C
    • Si7007: ±1.0 °C accuracy (maximum) @ -10 to +85 °C
  • 0 to 100% RH operating range
  • Up to -40 to +125 °C operating range
  • Wide operating voltage range (1.9 to 3.6 V)
  • 180 µA average current consumption at 2 samples per second
  • Two PWM outputs
    • Simultaneous output of RH and temperature
  • 3x3 mm DFN package
  • Excellent long term stability
  • Factory calibrated
  • Optional factory-installed filter/cover
    • Lifetime protection during reflow and in operation
    • Protects against contamination from dust, dirt, household chemicals and other liquids
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Find the Right Si7007/22/23 Device Select Columns
Select Columns
Part Number Description Temp Accuracy Max (°C) RH Accuracy Max Temperature Range (°C) Filter Cover Package Format Package Type
Digital RH + temp sensor with PWM output ±1 ±5% -40 125 Tube DFN6
Digital RH + temp sensor with PWM output ±1 ±5% -40 125 Cut Tape DFN6
Digital RH + temp sensor with PWM output ±0.4 ±4% -40 125 Tube DFN6
Digital RH + temp sensor with PWM output ±0.4 ±4% -40 125 Cut Tape DFN6
Digital RH + temp sensor with PWM output ±0.4 ±3% -40 125 Tube DFN6
Digital RH + temp sensor with PWM output ±0.4 ±3% -40 125 Cut Tape DFN6

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