Product Overview
The Si7006 I2C Humidity and Temperature Sensor is a monolithic CMOS IC that integrates humidity and temperature sensor elements, an analog-to-digital converter, signal processing, and calibration data with an I2C interface. Utilizing patented low-K polymeric dielectrics for humidity sensing, it offers low power consumption, low drift, minimal hysteresis, and excellent long-term stability. The sensor is factory-calibrated, ensuring interchangeability without recalibration. Available in a 3x3 mm DFN package, it serves as a drop-in upgrade for existing RH/temperature sensors, providing precision sensing over a wider range with lower power usage. An optional factory-installed cover offers protection during assembly and product life, excluding liquids and particulates. This sensor is ideal for measuring humidity, dew-point, and temperature in applications such as HVAC/R, thermostats, respiratory therapy, white goods, indoor weather stations, micro-environments, data centers, automotive climate control, asset tracking, and consumer electronics.
Product Attributes
- Brand: Silicon Laboratories
- Model: Si7006-A10
- Package: 3x3 mm DFN
- Material: Monolithic CMOS IC with low-K polymeric dielectrics
- Certifications: Patent Protected
Technical Specifications
| Parameter | Symbol | Test Condition | Min | Typ | Max | Unit |
| General Specifications (1.9 < VDD < 3.6 V; TA = 40 to 125 C) | ||||||
| Power Supply | VDD | 1.9 | 3.6 | V | ||
| Operating Temperature | TA | 40 | +125 | C | ||
| Input Voltage High | VIH | SCL, SDA pins | 0.7xVDD | V | ||
| Input Voltage Low | VIL | SCL, SDA pins | 0.3xVDD | V | ||
| Input Voltage Range | VIN | SCL, SDA pins with respect to GND | 0.0 | VDD | V | |
| Input Leakage | IIL | SCL, SDA pins | 1 | A | ||
| Output Voltage Low | VOL | SDA pin; IOL = 2.5 mA; VDD = 3.3 V | 0.6 | V | ||
| Output Voltage Low | VOL | SDA pin; IOL = 1.2 mA; VDD = 1.9 V | 0.4 | V | ||
| Current Consumption (RH conversion) | IDD | 150 | 180 | A | ||
| Current Consumption (Temperature conversion) | IDD | 90 | 120 | A | ||
| Current Consumption (Standby, 40 to +85 C) | IDD | No conversion or I2C transaction | 0.06 | 0.62 | A | |
| Current Consumption (Standby, 40 to +125 C) | IDD | No conversion or I2C transaction | 0.06 | 3.8 | A | |
| Peak Current Consumption (powerup) | IDD | 3.5 | 4.0 | mA | ||
| Peak Current Consumption (I2C operations) | IDD | 3.5 | 4.0 | mA | ||
| Current Consumption (after writing to user registers) | IDD | 20 | A | |||
| Heater Current | IHEAT | HTRE bit enabled | 3.1 | mA | ||
| Conversion Time (1.9 < VDD < 3.6 V; TA = 40 to 125 C) | ||||||
| 12-bit RH Conversion Time | tCONV | 10 | 12 | ms | ||
| 11-bit RH Conversion Time | tCONV | 5.8 | 7 | ms | ||
| 10-bit RH Conversion Time | tCONV | 3.7 | 4.5 | ms | ||
| 8-bit RH Conversion Time | tCONV | 2.6 | 3.1 | ms | ||
| 14-bit Temperature Conversion Time | tCONV | 7 | 10.8 | ms | ||
| 13-bit Temperature Conversion Time | tCONV | 4 | 6.2 | ms | ||
| 12-bit Temperature Conversion Time | tCONV | 2.4 | 3.8 | ms | ||
| 11-bit Temperature Conversion Time | tCONV | 1.5 | 2.4 | ms | ||
| Powerup Time | ||||||
| Powerup Time (VDD 1.9 V to ready, 25 C) | tPU | 18 | 25 | ms | ||
| Powerup Time (VDD 1.9 V to ready, full temp range) | tPU | 80 | ms | |||
| Powerup Time (after software reset) | tPU | 5 | 15 | ms | ||
| I2C Interface Specifications (1.9 VDD 3.6 V; TA = 40 to +125 C) | ||||||
| Hysteresis | VHYS | High-to-low vs low-to-high transition | 0.05 x VDD | V | ||
| SCLK Frequency | fSCL | 400 | kHz | |||
| SCL High Time | tSKH | 0.6 | s | |||
| SCL Low Time | tSKL | 1.3 | s | |||
| Start Hold Time | tSTH | 0.6 | s | |||
2411272328_SILICON-LABS-SI7006-A10-IM1_C19319110.pdf
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