SHT7x is a humidity and temperature sensor with fully calibrated, digital output, low power consumption, excellent long term stability and pin type package for easy integration.
The SHT7x family (including SHT71 and SHT75) are fully calibrated digital humidity and temperature sensors that integrate a capacitive humidity element and a band‑gap temperature element. The sensors feature low power consumption, high stability, and a 2‑wire serial interface with on‑chip voltage regulation.
The document includes sensor performance tables, electrical characteristics, pin assignments, command codes, measurement procedures, re‑conditioning steps, and conversion formulas for humidity and temperature. It also covers handling, storage, ESD protection, and optional heater operation.
| Supply voltage range | 2.4 V – 5.5 V (recommended 3.3 V) |
|---|---|
| Power consumption (measurement) | 3 mW |
| Default measurement resolution | 14‑bit temperature, 12‑bit humidity |
| Typical accuracy (humidity) | ±3.0 %RH (typ) |
| Typical accuracy (temperature) | ±0.4 °C (typ) |
| Humidity operating range | 0 % – 100 %RH |
| Storage temperature range | 10 °C – 50 °C |
| Heater current draw | ≈8 mA @ 5 V |
The sensor operates from 2.4 V to 5.5 V, with a recommended supply voltage of 3.3 V.
Bake the sensor at 100 °C – 106 °C at less than 5 %RH for 10 hours, then re‑hydrate at 20 °C – 30 °C at about 75 %RH for 12 hours.
The sensor consumes roughly 3 mW while measuring.
By default the sensor provides 14‑bit temperature data and 12‑bit humidity data.