Digital Signal Temperature Humidity Sensor Module Compatible With AM2120 Single Bus I2C
Applicable to different industries
CHTA30IW is a high-precision digital temperature and humidity sensor with small volume and high performance, including calibrated
digital signal output standard I2C/single bus .
Product Information
| Parameter |
Condition |
Min |
Typ |
Max |
Unit |
| Voltage VDD |
|
2.7 |
5 |
5.5 |
V |
| Power dissipation |
5V-dormancy |
|
3 |
|
uA |
| 5V-measuration |
|
1.5 |
|
mA |
| I/O Low battery input voltage |
|
0 |
|
0.2VDD |
V |
| I/O high battery input voltage |
|
0.8VDD |
|
VDD |
V |
| I/O Perfusion current |
5V |
34 |
68 |
|
mA |
| I/O source current |
5V |
-11 |
-22 |
|
mA |
Measuring range and accuracy of relative humidity
| Parameter |
Condition |
Min |
Typ |
Max |
Unit |
| Resolving power |
|
|
0.1 |
|
%RH |
| Measuring range |
|
10 |
|
95 |
%RH |
| Accuracy |
25ºC |
±4 |
±3 |
±4 |
%RH |
| Repeatability |
|
|
±3 |
|
%RH |
| Interchangeability |
|
Completely interconvert |
| Response time |
|
2 |
6 |
8 |
s |
| Drift |
|
±0.5 |
±1 |
±1.5 |
%RH |
| Hysteresis |
|
±0.5 |
±1 |
±2 |
%RHyr |
Temperature measurement range and accuracy
| Parameter |
Condition |
Min |
Typ |
Max |
Unit |
| Resolving power |
|
|
0.1 |
|
ºC |
| Measuring range |
|
±0.2 |
±0.5 |
±1 |
ºC |
| Accuracy |
|
-40 |
|
125 |
ºC |
| Repeatability |
|
|
±0.3 |
|
ºC |
| Interchangeability |
|
Completely interconvert |
| Response time |
|
|
2 |
|
s |
| Drift |
|
|
0.3 |
|
ºC/yr |
Precautions for using the product
1. Try to avoid direct use in the following environment: salt mist, corrosive gas: strong acid (sulfuric acid, hydrochloric acid), strong alkali, organic solvent (alcohol, acetone, etc.).
2. Recommended storage conditions: temperature 10ºC-40ºC, humidity 20%RH-60%RH.
3. It is recommended to use manual welding instead of wave soldering and reflow soldering. The welding temperature should not be too high and the welding time should be within 12 seconds.
4. Due to the difference in the temperature of the welding or storage environment, it will have an impact on
the field test results. It is recommended that the residual temperature of the module be eliminated 2 hours
after welding or 30 minutes after leaving the storage environment, the temperature and humidity measurement be carried out after reaching the balance with the environment to ensure the accuracy of the measurement.
5. On the premise of selecting a communication format, ensure that the design, wiring and jumper are carried out according to the electrical parameters, circuit diagrams and jumper methods recommended in this specification, and use them according to the specified software protocol or reference routines.
6. In special circumstances, such as high temperature and humidity, it is necessary to stick waterproof and breathable film or built-in waterproof and breathable film on the shell to protect sensitive devices before measuring.
Pin description:
1.VDD power(2.7vdc-5.5vdc)
2.SDA Bidirectional serial data
3.GND Ground
4.SLC Serial clock input port(Grounding in case of single bus)
Application circuit recommendations
The module CHTA30IW has two communication modes at the same time:
1. Standard I2C protocol and single bus protocol,
2. Specific communication mode, application circuit and reading routine (C language).
Q1.Are you a factory or trading company ?
A:We are a factory founded in 2010 and have over 10 years'OEM and international trading experience .
Q2.What's your main product?
A:Our main products are time Relay, voltage Relay, motor protector, current relay,solid state relay
Q3.Do you accept OEM or ODM?
A:Of course.
Q4.What's your main payment term?
A:T/T ,LC ,D/P.
Q5.Any quality guarantee or after-sales service?
A:All the products have 2 years' Guarantee. If any quality complaint , we will give out solution within 5 days
Q6.Can sample fee be returned back to me ?
A:Sample amount can be deducted from your bulk order payment when order quantity is over 1000 pieces at the first time.
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