Specifications
| Type | Description |
|---|---|
| Part Number | HDC1080 |
| Manufacturer | Texas Instruments |
| Product Type | Digital humidity and temperature sensor |
| Category | Sensors |
| Package / Case | 6-pin PWSON (DMB), 3.00 mm x 3.00 mm nominal body size |
| Relative Humidity Accuracy | ±2 %RH typ; refer to RH accuracy curve; TA=30°C, RH=40%, VDD=3 V unless otherwise noted |
| Temperature Accuracy | ±0.2 °C typ, ±0.4 °C max; 5°C < TA < 60°C |
| Measurement Resolution | 8, 11, or 14 bit RH; 11 or 14 bit temperature; resolution based on measurement time |
| Supply Voltage | 2.7 V min, 3 V nom, 5.5 V max; recommended operating conditions |
| Temperature Sensor Ambient Operating Temperature | -40°C min, 125°C max; recommended operating conditions |
| Humidity Sensor Ambient Operating Temperature | -20°C min, 70°C max; recommended operating conditions |
| Humidity Sensor Functional Operating Temperature | -20°C min, 85°C max; recommended operating conditions |
| RH Operating Range | 0 to 100 %RH; non-condensing |
| Recommended Humidity Operating Range | 10 to 70 %RH; prolonged operation outside this range may result in measurement offset |
| Sleep Mode Current | 100 nA typ, 200 nA max; TA=30°C, RH=40%, VDD=3 V |
| RH Measurement Supply Current | 190 µA typ, 220 µA max; RH measurement, bit 12 of 0x02 register = 0 |
| Temperature Measurement Supply Current | 160 µA typ, 185 µA max; temperature measurement, bit 12 of 0x02 register = 0 |
| Average RH Measurement Current | 710 nA typ; 1 measurement/second, RH 11-bit, bit 12 of 0x02 register = 0 |
| Average Temperature Measurement Current | 590 nA typ; 1 measurement/second, temperature 11-bit, bit 12 of 0x02 register = 0 |
| Average RH and Temperature Measurement Current | 1.3 µA typ; 1 measurement/second, RH 11-bit + temperature 11-bit, bit 12 of 0x02 register = 1 |
| Startup Current | 300 µA typ; average on startup time |
| Heater Peak Current | 7.2 mA typ; peak current |
| Heater Average Current | 50 µA typ; 1 measurement/second, RH 11-bit + temperature 11-bit, bit 12 of 0x02 register = 1 |
| RH Repeatability | ±0.1 %RH typ; 14-bit resolution |
| RH Hysteresis | ±1 %RH typ; 10% ≤ RH ≤ 70% |
| RH Response Time | 15 s typ; t63%, time for RH output to change by 63% after step change in humidity |
| RH Conversion Time, 8-bit | 2.50 ms typ; 8-bit resolution |
| RH Conversion Time, 11-bit | 3.85 ms typ; 11-bit resolution |
| RH Conversion Time, 14-bit | 6.50 ms typ; 14-bit resolution |
| RH Long-Term Drift | ±0.25 %RH/year typ; aging effects at 30°C and 20% to 50% RH |
| Temperature Repeatability | ±0.1 °C typ; 14-bit resolution |
| Temperature Conversion Time, 11-bit | 3.65 ms typ; 11-bit accuracy |
| Temperature Conversion Time, 14-bit | 6.35 ms typ; 14-bit accuracy |
| I2C Clock Frequency | 10 kHz min, 400 kHz max; I2C interface timing requirements |
| I2C Input High Voltage | 0.7 x VDD min; TA=30°C, VDD=3 V unless otherwise noted |
| I2C Input Low Voltage | 0.3 x VDD max; TA=30°C, VDD=3 V unless otherwise noted |
| I2C Output Low Voltage | 0.4 V max; sink current 3 mA |
| I2C Hysteresis | 0.1 x VDD typ; specified by design and/or characterization |
| Digital Pin Input Capacitance | 0.5 pF typ; all digital pins |
| I2C Clock Low Time | 1.3 µs min; I2C interface timing requirements |
| I2C Clock High Time | 0.6 µs min; I2C interface timing requirements |
| Input Filter Spike Suppression Pulse Width | 50 ns max; pulse width of spikes that must be suppressed by input filter |
| Device Startup Time | 10 ms typ, 15 ms max; from VDD ≥ 2.7 V to ready for conversion; communication not possible during interval |
| Absolute Maximum VDD | -0.3 V min, 6 V max; absolute maximum ratings |
| Absolute Maximum SCL Input Voltage | -0.3 V min, 6 V max; absolute maximum ratings |
| Absolute Maximum SDA Input Voltage | -0.3 V min, 6 V max; absolute maximum ratings |
| Storage Temperature | -65°C min, 150°C max; absolute maximum ratings |
| ESD Rating HBM | ±2000 V; human-body model per ANSI/ESDA/JEDEC JS-001 |
| ESD Rating CDM | ±500 V; charged-device model per JEDEC JESD22-C101 |
| Junction-to-Ambient Thermal Resistance | 49.4 °C/W; PWSON (DMB), 6 pins |
| Junction-to-Case Top Thermal Resistance | 29.8 °C/W; PWSON (DMB), 6 pins |
| Junction-to-Board Thermal Resistance | 23.1 °C/W; PWSON (DMB), 6 pins |
| Junction-to-Top Characterization Parameter | 3.3 °C/W; PWSON (DMB), 6 pins |
| Junction-to-Board Characterization Parameter | 23.1 °C/W; PWSON (DMB), 6 pins |
| Junction-to-Case Bottom Thermal Resistance | 4.2 °C/W; PWSON (DMB), 6 pins |
| Interface Type | I2C-compatible digital interface; measurement results read through interface |
| Supply Voltage Monitoring Threshold | less than 2.8 V indicated; voltage supply monitoring feature |
| SDA Pin Function | Serial data line for I2C, open-drain; requires pull-up resistor to VDD; pin 1 |
| SCL Pin Function | Serial clock line for I2C, open-drain; requires pull-up resistor to VDD; pin 6 |
| VDD Pin Function | Supply voltage; pin 5 |
| GND Pin Function | Ground; pin 2 |
| Die Attach Pad Connection | Should be left floating; bottom of device |
| Datasheet Status | request_only |
Product Overview
The HDC1080 is a Texas Instruments digital humidity and temperature sensor designed around an I2C-compatible digital interface. Measurement results are read through the digital interface, with SDA and SCL implemented as open-drain lines that require pull-up resistors to VDD.
The device supports selectable measurement resolution: 8, 11, or 14 bit for relative humidity and 11 or 14 bit for temperature. RH accuracy is specified at ±2 %RH typical under the stated datasheet condition, while temperature accuracy is ±0.2 °C typical and ±0.4 °C maximum across 5°C < TA < 60°C.
It operates from a recommended 2.7 V to 5.5 V supply and includes a supply voltage monitoring feature that indicates when supply voltage is less than 2.8 V. The package is a 6-pin PWSON (DMB), 3.00 mm x 3.00 mm nominal body size, with the bottom die attach pad specified to be left floating.
Key Features
- Digital humidity and temperature sensor in 6-pin PWSON package
- I2C-compatible digital interface for measurement readout
- 2.7 V to 5.5 V recommended supply range
- ±2 %RH typical relative humidity accuracy
- ±0.2 °C typical temperature accuracy from 5°C to 60°C
- Selectable RH resolution of 8, 11, or 14 bit
- Selectable temperature resolution of 11 or 14 bit
- 100 nA typical sleep-mode current
- 0 to 100 %RH non-condensing operating range
- Integrated supply monitoring below 2.8 V indication
Typical Applications
- Humidity and temperature sensing
- I2C-connected sensor modules
- Low-current environmental measurement
- Non-condensing RH measurement
- Embedded temperature monitoring
- Supply-monitored sensor nodes
Procurement Notes
When requesting a quote for HDC1080, buyers should confirm the manufacturer, package or case, required quantity, target date code, compliance documents, packing method, destination country and expected delivery schedule.
If alternatives are acceptable, buyers should share the approved vendor list, required electrical or optical limits, package constraints and qualification requirements. Any alternative part should be reviewed by the buyer's engineering team before production use.
For analog and signal-chain sourcing, supply voltage, bandwidth, accuracy, noise level, package, temperature grade, input/output configuration and qualification requirements should be verified before approval.
FAQ
What type of sensor is the HDC1080?
The HDC1080 is a Texas Instruments digital humidity and temperature sensor. Measurement results are read through an I2C-compatible digital interface, and the device is supplied in a 6-pin PWSON package.
What supply voltage range does HDC1080 support?
The recommended operating supply range is 2.7 V minimum, 3 V nominal, and 5.5 V maximum. The device also includes a supply voltage monitoring feature that indicates when the supply is less than 2.8 V.
What measurement resolutions are available on HDC1080?
Relative humidity resolution can be configured for 8, 11, or 14 bit operation. Temperature measurement resolution can be configured for 11 or 14 bit operation, with resolution tied to measurement time.
What are the I2C pin requirements for HDC1080?
SDA is pin 1 and SCL is pin 6. Both are open-drain I2C lines and require pull-up resistors to VDD. The I2C clock frequency range is specified from 10 kHz to 400 kHz.
Technical Review & Sourcing Note
Prepared by LDeepAI Component Sourcing Team. Reviewed for RFQ, documentation and alternative sourcing use. Last updated: July 28, 2026.
This page is based on manufacturer datasheet information and LDeepAI sourcing review. Specifications should be verified against the official manufacturer datasheet before final procurement or design approval. Final electrical, optical and reliability approval should be confirmed by the buyer's engineering team.