The SI7023-A20-IM 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.
Feature
- 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
- Si7023/21: ± 3% RH (maximum) @ 0–80% RH
- Si7022: ± 4% RH (maximum) @ 0–80% RH
- Si7007: ± 5% RH (maximum) @ 0–80% RH
- Si7022/23: ±0.4 °C accuracy (maximum) @ -10 to +85 °C
- Si7007: ±1.0 °C accuracy (maximum) @ -10 to +85 °C
- 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
- Simultaneous output of RH and temperature
- 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
- Lifetime protection during reflow and in operation
- Protects against contamination from dust, dirt, household chemicals and other liquids
