Temperature-Humidity Sensor-AM2311A (Upgraded Version of DHT22)
AM2311A is an upgraded version of AM2311, AM2311 is a capacitor chip AM2311A inside is a car-level integrated chip. This is a stable temperature and humidity sensor module.
- 10+: $3.70
PRODUCT DETAILS
Description
AM2311A (an upgraded version of DHT22) digital temperature and humidity sensor provides calibrated digital signal output. AM2311A digital temperature and humidity sensor use special temperature and humidity acquisition technology to ensure that the product has high reliability and excellent long-term stability.
The AM2311A digital temperature and humidity sensor is composed of capacitive humidity elements and integrated high-precision temperature measurement equipment and is connected to a high-performance microprocessor.
Feature
- Includes a capacitive humidity sensor and a high precision temperature sensor.
- Full calibration
- Digital output, unibus interface
- Excellent long-term stability
- Quick response and strong anti-jamming capability
Note
If the sensor is surrounded by volatile solvents, irritating tapes, adhesives, and packaging materials, the reading may be higher. For more information, please refer to the relevant documents.
The AM2311A includes a capacitive humidity sensor and a high precision temperature sensor. The range of humidity sensor is 0 to 99.9 %RH with ±3% accuracy while the temperature sensor ranges from -40 to 80℃ with ±0.5℃ accuracy.
Calibration coefficients are stored in the form of a program in the single-chip computer. These calibration coefficients are called in the process of processing the detection signal inside the sensor. A standard single bus interface makes system integration easy and fast. The standard single bus interface makes system integration easy and fast. Ultra-small size, very low power consumption, Signal transmission distance can reach more than 20 meters. Products are cited as 3Wire (single bus interface) the connection is convenient. You can download the Datasheet
Specification
| Typical accuracy (% RH) | ± 3 |
| Operating range (% RH) | 0 to 99.9 |
| Humi response time(s) | 5 |
| Typical accuracy (°C) | ± 0.5 |
| Operating range (°C) | -40~80 |
| Temp response time(s) | 5 |
| Interface | 1-Wire |
| Supply voltage(V) | 3.3~5.5 |
Application Scope
An HVAC system, dehumidifier, test, and inspection equipment, consumer goods, automobiles, automatic control, data recorder, weather, household appliances, humidity regulation, medical and other related temperature and humidity detection and control.
Electric specification
| Parameter | Condition | Min | Typical | Max | Unit |
| Supply Voltage | 3.3 | 5 | 5.5 | V | |
| Power-consumption | Sleep | 2 | 15 | μA | |
| measuring | 1200 | μA | |||
| Average | 600 | μA | |||
| Low level output voltage | I OL | 0 | 300 | mV | |
| High level output voltage | Rp <25 KΩ | 90% | 100% | VDD | |
| Low level input voltage | Decline | 0 | 30% | VDD | |
| High level input voltage | Rise | 70% | 100% | VDD | |
| RPU | VDD = 5V VIN = VSS | 1 | 5.1 | 100 | KΩ |
| Output current | Open | 8 | mA | ||
| Tri-state (turn off) |
10 | 20 | μA | ||
| Sampling period | 2 | S |
CAD
Sensor performance
Part List
1 x AM2311A
ECCN/HTS
| HSCODE | 9025800000 |
| USHSCODE | 9026104000 |
| UPC | |
| EUHSCODE | 9013101000 |
| COO | CHINA |