Digital I2C Humdity and Temperature Sensor Module - TH02

Relative Humidity Sensor ± 4.5 % RH (maximum @ 20-80% RH)
Temperature Sensor ±0.5 oC accuracy (typical)
0 to 100% RH operating range
-40 to +85 oC (GM) or 0 to +70 oC operating range (FM)
Wide operating voltage range (2.1 to 3.6 V)
Low Power Consumption 240 μA during RH conversion


  • Model Number: TH02
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  • Digital I2C Humdity and Temperature Sensor Module
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Product Specification

Digital I2C Humdity and Temperature Sensor Module TH02 Description 
The TH02 is a digital relative humidity and temperature sensor. This monolithic  CMOS  IC  integrates temperature and humidity sensor elements, an analog-to-digital converter, signal processing, calibration data, and an I2C host interface. The patented use of industry-standard, low-K polymeric dielectrics for sensing humidity enables the construction of a low-power, monolithic CMOS sensor IC with low drift and hysteresis and excellent long term stability.

Both the temperature and humidity sensors are factory-calibrated and the calibration data is stored in the on-chip non-volatile memory. This ensures that the sensors are fully interchangeable, with no recalibration or software changes required.

Digital I2C Humdity and Temperature Sensor Module TH02 Features
● Relative Humidity Sensor
    ± 4.5 % RH (maximum @ 20-80% RH)
● Temperature Sensor
    ±0.5 oC accuracy (typical)
    ±1 oC accuracy (maximum @ 0 to 70 °C)
    0 to 100% RH operating range
● -40 to +85 oC (GM) or 0 to +70 oC operating range (FM)
● Wide operating voltage range (2.1 to 3.6 V)
● Low Power Consumption
    240 μA during RH conversion
● I2C host interface
● Integrated on-chip heater
● Excellent long term stability
● Factory calibrated
● Optional factory-installed cover
    Low-profile 
    Protection during reflow
    Excludes liquids and particulates (hydrophobic/oleophobic) 

Digital I2C Humdity and Temperature Sensor Module TH02 Applications
● Industrial HVAC/R
● Thermostats/humidistats
● Respiratory therapy
● White goods
● Micro-environments/data centers
● utomotive climate control and de-fogging
● Asset and goods tracking

Digital I2C Humdity and Temperature Sensor Module TH02 Electrical Specifications
Unless otherwise specified, all min/max specifications apply over the recommended operating conditions. 
Table 1. Recommended Operating Conditions

Parameter
Symbol
Test Condition
Min
Typ
Max
Unit
Power Supply
VDD

2.1
3.3
3.6
V
Operating Temperature
TA
G grade
-40
-- 85
°C
Operating Temperature
TA
F grade 
0
-- 70
°C

Table 2. General Specifications
2.1 ≤ VDD ≤ 3.6 V; TA = 0 to 70 °C (F grade) or –40 to 85 °C (G grade) unless otherwise noted. 
Parameter
Symbol
Test Condition
Min
Typ
Max
Unit
Input Voltage High
VIH
SCL, SDA pins
0.7xVDD
-- -- V
Input Voltage Low
VIL
SCL, SDA pins
-- -- 0.3xVDD
V
Input Voltage Range
VIN
SCL, SDA pins with respect to GND
0.0
-- 3.6 V
Input Leakage
IIL
SCL, SDA pins
-- -- ±1
μA
Output Voltage Low
VOL
SDA pin; IOL = 8.5 mA; VDD = 3.3 V
-- -- 0.6 V
SDA pin; IOL = 3.5 mA; VDD = 2.1 V
-- -- 0.4 V

Notes:

 1. SDA and SCL pins have an internal 75 kΩ pull-up resistor to VDD





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