The CHT832X sensor series from SENSYLINK Microelectronics are digital, high-performance humidity and temperature sensors designed for applications requiring the highest accuracy, reliability and energy efficiency. Available in variants differing in accuracy and I²C address, they are ideally suited to the needs of HVAC systems, refrigeration equipment, mobile data loggers and environmental monitoring.

Features:

• supply voltage: 1.8V - 5.5V
• current consumption:
• average: 5.5 μA at 3.3V
• standby mode: 0.36 μA
• temperature measurement accuracy:
  • ±0.1°C (typical), ±0.3°C (max.) in the range 10°C - 50°C
  • ±0.2°C (typical), ±0.6°C (max.) from 0°C to 85°C
  • ±0.5°C (typical), ±1.0°C (max.) in the full range -40°C - 125°C
• humidity measurement accuracy:
  • CHT8325: ±1.5%RH (typical), ±2.5%RH (max.)
  • CHT8320: ±2.0%RH (typical), ±4.0%RH (max. )
• digital communication:
  • compatibility with I²C and SMBus
  • speed up to 1 MHz
  • Packet Error Checking function
  • General Call support
• continuous and One-Shot measurement
• NIST tracking - full compliance with calibration requirements
• enclosure: DFN2x2-4 mm
• availability of 4 I²C addresses - possibility to operate multiple sensors on one bus

Applications:

• smart HVAC systems
• white goods: fridges, freezers, washing machines
• data loggers and cold chain tracking
• environmental monitoring
• mobile/wearable weather devices
• IP cameras and smart surveillance systems

Why CHT832X?

• highest precision measurements in a compact format
• energy efficient - ideal for battery power
• factory calibration - no need for re-tuning
• addressing and protocol flexibility - quick integration into existing systems
• RoHS 2.0 and REACH compliant