The CHT8315 from SENSYLINK Microelectronics is a compact, low-voltage digital temperature and humidity sensor ideal for modern HVAC systems, mobile devices and IoT applications. Designed with energy savings in mind, the CHT8315 offers precise measurement, digital I2C/SMBus communication and very low power consumption - all enclosed in a compact package.

Features:

• supply voltage: 1.35V - 5.5V
• typical current consumption: 1.0 μA at 3.3V
• standby current: 35 nA (typical)
• temperature measurement accuracy:
  • ±0.5°C (max.) from 0°C to 100°C
  • ±1.0°C (max.) from -40°C to 125°C
• humidity measurement accuracy:
  • ±3.0%RH (max.) at 50%RH
  • ±5.0%RH (max.) within 20%RH - 80%RH
• digital communication: I²C/SMBus compatibility
• support up to 4 slave addresses (configuration via AD0)
• speed up to 3. 4 MHz
• Packet Error Checking function
• support for Alert Response (ARA) and General Call
• programmable High/Low alarms for temperature and/or humidity
• support for One-Shot and continuous measurement mode
• fast measurement mode after alert activation
• housing: DFN3x3-6 mm (optional with protective cover)

Applications:

• smart HVAC systems
• mobile and wearable weather monitors
• industrial measurement systems
• IoT and Smart Home applications
• environmental monitoring of ambient conditions

Why is CHT8315 the ideal choice?

• extremely low power consumption - ideal for battery-powered applications
• high reliability digital communications
• built-in security and alarm functions - greater application control
• flexible I²C addressing - supports multiple sensors on one bus
• factory calibration - ready to use without additional configuration