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Specifications
Humidity Tolerance:
±1.8%RH
Resolution:
16bit
Temperature Range:
-40℃~+125℃
Humidity:
0%RH~100%RH
Temperature Tolerance:
±0.2℃
Mfr. Part #:
GXHT40AD
Package:
DFN-4(1.5x1.5)
Key Attributes
Model Number:
GXHT40AD
Product Description
Product Overview
The GXHT4x is a next-generation, single-chip integrated relative humidity and temperature sensor from Galaxy-CAS. It offers high accuracy, ultra-low power consumption, and configurable IC addresses. Featuring a built-in variable power heater for anti-dew applications and a DFN4 package suitable for SMT processing, this sensor is ideal for automotive cabins, industrial control, smart homes, consumer electronics, and medical devices. It provides precise measurements with resolutions of 0.01%RH and 0.01C, operating across a wide range of environmental conditions.
Product Attributes
- Brand: Galaxy-CAS
- Origin: Beijing
- Certifications: JEDEC JESD47 qualification, NIST traceability
Technical Specifications
| Model | Description | RH Accuracy (Typ.) | Temp. Accuracy (Typ.) | IC Address | Package |
|---|---|---|---|---|---|
| GXHT40-AD | Ordinary precision | 1.8 %RH | 0.2 | 0x44 | DFN4 |
| GXHT40-BD | Ordinary precision | 1.8 %RH | 0.2 | 0x45 | DFN4 |
| GXHT41-AD | High precision | 1.8 %RH | 0.2 | 0x45 | DFN4 |
| GXHT45-AD | Highest precision | 1.0 %RH | 0.1 | 0x45 | DFN4 |
| Parameter | Symbol | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Relative humidity accuracy | RH accuracy | @25 | 1.8 (GXHT40/41) 1.0 (GXHT45) | %RH | ||
| Temperature accuracy | T. accuracy | @25 | 0.2 (GXHT40/41) 0.1 (GXHT45) | |||
| Supply voltage | VDD | 1.6 | 3.3 | 5.5 | V | |
| Average current | IDD | at meas. rate 1 Hz | 0.4 | A | ||
| Idle current | IDD | Idle state | 0.1 | 0.15 | uA | |
| Resolution | 0.01 | %RH, | ||||
| Operating range | 0-100%RH, -40~125 C | |||||
| Communication Interface | IC, up to 1 MHz | |||||
| Package Information | DFN4 (1.5mm1.5mm) |
2505131730_GXCAS-GXHT40AD_C48887140.pdf
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