The AM2315C is an advanced humidity and temperature sensor module featuring an all-new-design ASIC chip, an improved MEMS capacitive humidity sensor, and an integrated temperature sensor. It delivers superior performance and reliability compared to previous generations, with enhanced stability in harsh environments. The AM2315C offers a fully calibrated digital output via IC protocol, supporting a wide voltage range of 2.2 to 5.5V DC. Its miniaturized design contributes to higher cost-effectiveness and broader applicability in fields such as HVAC, dehumidifiers, automotive, data loggers, and weather stations.
| Parameter | Condition | Min | Typical | Max | Unit | Notes |
|---|---|---|---|---|---|---|
| Relative Humidity Characteristics | ||||||
| Resolution | - | - | 0.024 | - | %RH | - |
| Accuracy | - | - | 2 | - | %RH | Typical accuracy at 3.3V, 25C, non-condensing |
| Tolerance | Max | - | - | See Figure 2 | %RH | - |
| Repeatable | - | - | 0.1 | - | %RH | - |
| Hysteresis | - | - | 1 | - | %RH | - |
| Nonlinear | - | - | <0.1 | - | %RH | - |
| Response Time (63%) | - | - | 8 | - | S | At 25C and 1 m/s airflow |
| Scope of Work Extended | - | 0 | - | 100 | %RH | - |
| Prolonged Drift (Normal) | - | - | <1 | - | %RH/yr | - |
| Electrical Specifications | ||||||
| Supply Voltage | Typical | 2.2 | 3.3 | 5.5 | V DC | - |
| Supply Current (IDD) - Dormancy | - | - | 250 | - | nA | - |
| Supply Current (IDD) - Measure | - | - | 980 | - | A | - |
| Power Consumption - Dormancy | - | - | 0.8 | - | W | - |
| Power Consumption - Measure | - | - | 3.2 | - | mW | - |
| Communication Standard | - | - | IC protocol | - | - | - |
| Temperature Characteristics | ||||||
| Resolution | Typical | - | 0.01 | - | C | - |
| Accuracy | Typical | - | 0.3 | - | C | Typical accuracy at 3.3V, 25C |
| Tolerance | Max | - | - | See Figure 3 | C | - |
| Repeatable | - | - | 0.1 | - | C | - |
| Hysteresis | - | - | 0.1 | - | C | - |
| Response Time (63%) | 5 | - | - | - | S | At 30C |
| Scope of Work Extended | -40 | - | 80 | C | - | |
| Prolonged Drift (Normal) | - | - | <0.1 | - | C /yr | - |
| Absolute Maximum Ratings | ||||||
| VDD to GND | - | -0.3 | - | 5.5 | V | - |
| Digital I/O Pins (SDA, SCL) to GND | - | -0.3 | - | VDD+0.3 | V | - |
| Input current per pin | - | -10 | - | 10 | mA | - |
| Pin Distribution (Top View) | ||||||
| Pin Name | Color | Description | ||||
| VDD | Red | Power supply (2.2V to 5.5V) | ||||
| SCL | White | Serial Clock, Bidirectional Port | ||||
| SDA | Yellow | Serial Data, Bidirectional Port | ||||
| GND | Black | Ground | ||||
| Dimensions | ||||||
| Outer Dimensions | - | See Figure 12 (unit: mm, tolerance: 0.2 mm) | ||||