Table of Contents
Advertisement
Quick Links
AHT10 Technical Manual
Temperature and humidity sensor
• Fully calibrated
• Digital output, I
• Excellent long-term stability
• SMD package reflow solderable
• Fast response and strong anti-interference ability
Product overview
AHT10,
the new generation of temperature and humidity
sensors sets a new standard in size and intelligence: it is
embedded for reflow soldering
The dual-row flat leadless SMD package has
a 4x5mm bottom and a height of
outputs a calibrated digital signal in standard I2C format.
The AHT10 is equipped with a newly designed
ASIC- specific chip, an improved MEMS semiconductor
capacitive humidity sensing element and a standard on-
chip temperature sensing element. Its performance has
been greatly improved beyond the reliability level of the
previous generation of sensors. The first generation of
temperature and humidity sensors have been improved to
make them more stable in harsh environments.
Application range
HVAC, dehumidifiers, testing and testing equipment, consumer goods, automobiles, automatic control, data logger,
weather
home appliances, humidity regulation, medical and other related temperature and humidity detection and
control.
1-
ADR
2-
SDA
3-
SCL
4-
VDD
5-
GND
6-
NC
Figure 1: AHT10 sensor package diagram (unit: mm tolerance: 0.1mm)
2
C interface
1.6mm.
The sensor
1
6
2
5
3
4
Each sensor is calibrated and tested with a product
lot number printed on the surface of the
product. Thanks to improved and miniaturized
sensors, it is more cost-effective and ultimately all
equipment will benefit from cutting-edge energy-
saving operating modes.
4.0
2.7
5.0
1.27
0.8
ASAIR®
1.0
®
ASAIR
0.8
AHT10
XXXXXX
1.6
Advertisement
Table of Contents
Related Manuals for ASAIR AHT10
Summary of Contents for ASAIR AHT10
- Page 1 HVAC, dehumidifiers, testing and testing equipment, consumer goods, automobiles, automatic control, data logger, weather home appliances, humidity regulation, medical and other related temperature and humidity detection and control. ® ASAIR AHT10 1.27 XXXXXX Figure 1: AHT10 sensor package diagram (unit: mm tolerance: 0.1mm)
- Page 2 Sensor performance Relative humidity Temperature unit parameter condtn unit parameter condtn Resolution typical 0.01 ℃ Resolution typical 0.024 typical ±0.3 ℃ typical ±2 Accuracy Accuracy ℃ maximum See Figure 3 maximum See Figure 2 ℃ Repeatability Repeatability ±0.1 ±0.1 ℃ Hysteresis ±0.1 Hysteresis...
-
Page 3: Electrical Characteristics
Supply current,IDD measuring µA Sleep µW measuring 0.07 Power average µW communication Two-wire digital interface , standard I C protocol Table 2 Electrical characteristics packaging information Sensor model package Quantity AHT10 Tape 4000PCS/ volume reel packaging Table 4 package information. -
Page 4: Working Conditions
AHT10 User Guide 11 Expansion performance 1.1 Working conditions The sensor has stable performance within the recommended operating range, see Figure 4 . Long- term exposure to conditions outside the normal range, 温度 ( ℃ ) especially at humidity >80 %, may result in temporary Figure 6 VDD = 3.3V , typical supply current vs. -
Page 5: Application Information
PCB need to be sealed (eg, using a conformal coating) to avoid poor contact or short circuit. Figure 8 recommends the AHT10 PCB design dimensions (unit: mm), peripheral The dotted line is the outer dimensions of the SMD package. - Page 6 0.1 ° C , the activation time Avoid contact with volatile glue, tape, stickers or of AHT10 should not exceed the measurement volatile packaging materials. Such as foam, foam and time. 10% - recommended every 2 seconds so on.
- Page 7 AHT10 and other shielded cables. In addition, lower parts of the printed circuit board should be as small as The SCL frequency may also improve the integrity of the possible, or a gap should be left between the two.
-
Page 8: Interface Definition
2, To further improve the reliability of the system, the sensor power can be controlled. Table 5 AHT10 pin distribution (top view). 3, Only a single AHT10 can be connected to the I 2 C bus and no other I 2 C devices can be connected . 3.1 Power supply pin (VDD, GND) To avoid signal collisions, the microprocessor ( MCU ) AHT10 power supply range of 1.8-3.6V,... -
Page 9: Input / Output Characteristics
The specific meaning is shown in Figure 12. Unless otherwise stated. Input low voltage 5 Sensor communication Input high The AHT10 communicates using the standard I 2 C voltage 70% VDD protocol. For information on the I 2 C protocol other than the following sections, please refer to the Input VDD = 3.6 V,... - Page 10 Figure 13 Start Transfer Status ( S ) - When SCL is high, SDA transitions from high to low. The start state is a special bus state controlled by the host, indicating the [2：0] Reserved Reserved start of the slave transfer ( after the Start , the BUS bus is generally considered Table 10 status bit description to be busy) Trigger measurement data...
- Page 11 C address +write Soft Reset machinery, make sure that the sensor used Figure 17 soft reset – the gray part consists of AHT10 control.。 for the measurement and the sensor used for 6 Signal conversion the reference perceive the same conditions of temperature and humidity.
- Page 12 8.1 tracking information All AHT10 sensor surfaces are laser marked. 8.2 Transport Packaging See picture 18 The AHT10 is packaged in tape and reel and sealed in ® an antistatic ESD bag. The standard package size ASAIR is 4000 pieces per roll. For the AHT10 package,...
-
Page 13: Version Information
Any claims that may arise from agents, distributors, etc., including: various costs, compensation, legal fees, etc. Copyright © 2018, ASAIR ® ESD protection Due to the inherent design of the component, it is sensitive to static electricity. To prevent damage from...
Need help?
Do you have a question about the AHT10 and is the answer not in the manual?
Questions and answers