The Si70xx/Si701x/Si702x series of digital humidity & temperature sensors integrates a humidity sensor, temperature sensor, I2C serial interface, calibration and on-chip signal conditioning in one compact QFN/DFN CMOS package.
When air comes into contact with the exposed polymide sensor, moisture in the air causes a capacitance change in the sensor resulting in the on-chip conditioning converting this to a humidity reading. This is then made available to the user over the I2C interface.
Applications include asset and goods tracking, laptops, tablets, PLC and I/O modules, smart phones, thermostats, humidistats, wireless sensing, detection of gas, fire, smoke and water, ventilation and air conditioning.
Features;
Wide operating voltage range : 1.9 V to 3.6 V
Low power
I2C serial interface
On-chip heater
Great long term stability
Fully calibrated
Pre-installed protective filter
Feature
- Precision Relative Humidity Sensor:
- Si7013/21: ± 3% RH (maximum) @ 0–80% RH
- Si7020/34: ± 4% RH (maximum) @ 0–80% RH
- Si7006: ± 5% RH (maximum) @ 0–80% RH
- Temperature Sensor:
- Si7013/20/21/34: ±0.4 °C accuracy (maximum) @ -10 to +85 °C
- Si7006: ±1.0 °C accuracy (maximum) @ -10 to +85 °C
- 0 to 100% RH operating range
- Up to -40 to +125 °C operating range
- Si7013/21: ± 3% RH (maximum) @ 0–80% RH
- Si7020/34: ± 4% RH (maximum) @ 0–80% RH
- Si7006: ± 5% RH (maximum) @ 0–80% RH
- Si7013/20/21/34: ±0.4 °C accuracy (maximum) @ -10 to +85 °C
- Si7006: ±1.0 °C accuracy (maximum) @ -10 to +85 °C
- Wide operating voltage range
- Si7006/13/20/21: 1.9 to 3.6 V
- Si7034: 1.67 to 1.98 V
- Low Power Consumption:
- 2.2 µW at 3.3 V, 1 Hz (Si7006/13/20/21)
- 0.9 µW at 1.8 V, 1 Hz (Si7034)
- I2C host interface
- Integrated on-chip heater
- Tiny DFN package
- Si7006/13/20/21: 3x3 mm
- Si7034: 2x2 mm
- Si7006/13/20/21: 1.9 to 3.6 V
- Si7034: 1.67 to 1.98 V
- 2.2 µW at 3.3 V, 1 Hz (Si7006/13/20/21)
- 0.9 µW at 1.8 V, 1 Hz (Si7034)
- Si7006/13/20/21: 3x3 mm
- Si7034: 2x2 mm
- 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
