Match the reference to the application.
The application uses HDC1080 temperature and humidity measurement. Review conversion scheduling, the specified measurement intervals and non-condensing conditions.
Review the specification →GUILCOR · Digital sensing
HDC1080
humidity and temperature sensors
Combined humidity and temperature sensing with selectable resolution. Plan acquisition timing around both channels and the selected operating mode.
Understand the reference
Budget the paired measurement time.
A paired measurement acquires temperature and humidity in sequence. Lower resolution can reduce conversion time; it does not remove the need to wait for fresh data or validate the installation. The humidity channel functional temperature interval is −20 to +85 °C, with non-condensing operation.
SELECTION / YOUR APPLICATION
Is HDC1080 the right starting point?
Review SHT85 alongside HDC1080.
Compare the humidity and temperature channels, host interface, electrical requirements and installation. The enclosure and exposure of the sensing opening are part of the selection.
Explore SHT85 →Keep the complete specification together.
Keep the exact device and host-driver references. Check commands, data conversion, connector and protective opening as well as the required measurement interval.
Prepare your enquiry →These links support a specification review. They do not establish interchangeable parts or availability of a complete assembly.
Interactive application guide
Estimate the paired conversion budget.
Input range: 1 to 10000
Uses typical conversion times: temperature 6.35 / 3.65 ms and humidity 6.5 / 3.85 / 2.5 ms for the listed modes. Allow timing margin and bus overhead; typical values are not guaranteed maxima.
Typical paired conversion
Remaining interval
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Technical reference
Reference details for the application.
| IC temperature range | −40 to +125 °C |
|---|---|
| Supply | 2.7 to 5.5 V |
| Typical accuracy | ±2 %RH and ±0.2 °C under datasheet conditions |
| 7-bit address | 0x40 |
| Temperature resolution | 11 or 14 bits |
| Humidity resolution | 8, 11 or 14 bits |
Apply the limits to the right component.
The sensing IC, finished probe and host electronics have separate requirements. Cable insulation, sealing, connector, supply and mounting may impose a narrower operating range. A temperature step is not an accuracy guarantee, and an electronic conversion time is not a thermal response time.
Useful for HVAC and battery-operated monitoring when the sample duty cycle and sensor surroundings are controlled.
Wiring and integration
Specify the electrical interface and sensing path.
Device connections
Check the fixed address, shared pullups and host timing. Avoid board heat and contamination near the humidity opening.
Shared bus integration
SDA and SCL usually need pullups to a compatible logic supply. Select them for bus capacitance, rise time and the devices that pull the lines low. Cable length, connectors and level shifters change the electrical behaviour.
Use 7-bit addresses consistently in the host API. Check clock stretching, timeout and recovery support. Successful communication does not prove that the reading is fresh or that the sensor is mounted at a representative measurement point.
Acquisition sequence
Make each reading traceable.
Discover
Confirm the part, address, supply and measurement mode.
Convert
Issue the device-specific command and satisfy its timing and power needs.
Validate
Read the correct registers, check CRC where provided and reject invalid or stale results.
Use
Apply the correct decoder or compensation, units and application limits.
Measurement quality
Separate electrical behaviour from thermal performance.
Accuracy and calibration
Choose the error limit over the actual operating interval. Add installation and readout effects. Define any calibration and periodic verification required by the application; factory calibration does not establish a universal no-maintenance policy.
Response and mounting
A sheath, potting material and mounting contact change how fast the sensing element follows the medium. Verify response in the intended flow and installation, rather than using conversion time as the finished-probe response.
Power and self-heating
Average dissipation depends on supply, conversion duty and surrounding electronics. Test the assembled probe at the intended reading rate. Do not assume a universal self-heating offset from the interface name.
Form factor library
Choose your probe format.
Choose the shape and mounting for the measurement point. These are GUILCOR probe families and a design service; confirm the compatible element, dimensions, cable and complete assembly for the selected reference.
Frequently asked questions
Questions before specifying the assembly.
Is conversion time the humidity response time?
No. Conversion is an electronic operation; enclosure airflow and the sensing element determine how quickly a change in the medium is followed.
Can all I²C sensors share one bus?
Only when addresses, voltage levels, timing and host support are compatible. Fixed duplicate addresses may require a multiplexer or separate bus.
Is I²C a long-distance industrial interface?
It is commonly used for communication within electronic assemblies. Longer cables require an electrical design and validation appropriate to the installation; there is no universal permitted length.
What should I send for a probe quotation?
Send the reference and full ordering code, measured quantities, operating interval, error and response requirements, mounting drawing, cable and connector, host interface and quantity.
Technical sources
Continue with the reference documents.
GUILCOR / YOUR ENQUIRY
Define your HDC1080 enquiry.
Describe both the electrical interface and the air reaching the sensor. Include the enclosure, airflow and exposure conditions when requesting an assembled probe.
Missing a reference or datasheet?
Send the component marking, equipment reference and any photographs or documents you have. These provide a starting point for identifying what must be confirmed.
The outline helps prepare your enquiry. Copying it does not send a request.
FOUR DETAILS THAT MOVE THE DISCUSSION FORWARD
01
Device and host
Exact device or module, interface, host or driver, supply and logic levels, addressing or wiring and measurement commands.
02
Measurement conditions
Temperature and humidity intervals, required accuracy and update rate, airflow, condensation risk, contamination and any additional measured quantities.
03
Assembly and connection
Sensing opening or filter, enclosure and ventilation, mounting location, nearby heat sources, connector and cable arrangement.
04
Project and validation
Sample and production quantities, target delivery, calibration or documentation needs, and the checks required before approval.