General Description
SHT4x is a digital sensor platform for measuring relative humidity and temperature at different accuracy classes. The I2C interface provides several preconfigured I2C addresses and maintains an ultra-low power budget. The power-trimmed internal heater can be used at three heating levels thus enabling sensor operation in demanding environments. The four-pin dual-flat-no-leads package is suitable for surface mount technology (SMT) processing.

Features
 Relative humidity accuracy: up to ±1.5 %RH
 Temperature accuracy: up to ±0.1 °C
 Supply voltage: 1.08 V … 3.6 V
 Average current: 0.4 μA (at meas. rate 1 Hz)
 Idle current: 80 nA
 I2C fast mode plus, CRC checksum
 Operating range: 0…100 %RH, -40…125 °C
 Fully functional in condensing environment
 Variable power heater
 NIST traceability
 JEDEC JESD47 qualification
 Mature technology from global market leader