Humidity and Temperature Sensor — AHT20
Спецификация AHT20
Available on request
Delivery across Russia
Order phone: +7(800)777-18-50
Description
As a new generation model among temperature and humidity sensors, the AHT20 sets a new standard in terms of size and performance:
• SMD – package with dual-row flat contacts, suitable for reflow soldering;
• bottom surface 3x3 mm;
• height 1.0 mm.
The sensor output signal is calibrated in the standard IIC format.
The AHT20 is equipped with a newly developed specialized ASIC chip, an improved MEMS semiconductor humidity sensor, and a standard on-chip temperature sensor. Its performance has been significantly enhanced, and the reliability level has surpassed that of previous generation sensors.
The production of temperature and humidity sensors has been improved to make their operation more stable under harsh conditions.
Each sensor is calibrated and tested, and the product batch number is printed on the product surface. Thanks to improvements and the reduced sensor size, it has become more cost-effective, and ultimately, any device will benefit from the use of modern energy-saving operating modes.
- Specifications
- Overall dimensions drawing
- Applications
General Technical Data |
|
| Power Supply Voltage | direct current: 2.2–5.5 V |
| Measurement Range (Humidity) | 0 ~ 100% relative humidity |
| Measurement Range (Temperature) | -40 ~ + 85 ℃ |
| Humidity Accuracy | ± 2 % relative humidity (25 ℃) |
| Temperature Accuracy | ± 0.3 ℃ |
| Resolution |
temperature: 0.01 ℃ humidity: 0.024% relative humidity |
| Response Time |
temperature: 5 s humidity: 8 s 1/e (63%) |
| Output Signal | I 2 C signal |
Humidity Characteristics |
|||||
| Parameter | Condition | Min. | Standard | Max. | Unit of Measurement |
| Resolution | Nominal | - | 0.024 | - | %RH |
| Error1 | Nominal | - | ±2 | - | %RH |
| max. | see fig. 2 | - | %RH | ||
| Repeatability | - | - | ±0.1 | - | %RH |
| Hysteresis | - | - | ±1 | - | %RH |
| Nonlinearity | - | - | <0.1 | - | %RH |
| Response Time2 | τ63% | - | 8 | - | S |
| Operating range | Extended3 | 0 | - | 100 | %RH |
| Long-term drift | - | - | <1 | - | %RH/year |
Temperature Characteristics |
|||||
| Parameter | Condition | Min. | Standard | Max. | Unit |
| Resolution | Nominal | - | 0.01 | - | °C |
| Accuracy1 | Nominal | - | ±0.3 | - | °C |
| max. | see fig. 3 | - | °C | ||
| Repeatability | - | - | ±0.1 | - | °C |
| Hysteresis | - | - | ±0.1 | - | °C |
| Response time6 | τ63% | 5 | 30 | S | |
| Operating range | Extended3 | -40 | - | 85 | °C |
| Long-term drift | - | - | <0.1 | - | °C/year |
