Si7023-A10
HUMIDITY/TEMPERATURE SENSOR WITH PWM OUTPUT
Features
Precision Relative Humidity Sensor Factory-calibrated
3% RH (max), 080% RH PWM Output
High Accuracy Temperature Sensor 3x3 mm DFN Package
0.4 C (max), 10 to 85 C Excellent long term stability
0 to 100% RH operating range Optional factory-installed cover
40 to +125 C operating range Low-profile
Wide operating voltage Protection during reflow
(1.9 to 3.6 V)
Excludes liquids and particulates
Low Power Consumption
Si7023
Applications
Ordering Information:
HVAC/R Micro-environments/data centers
See page 18.
Thermostats/humidistats Automotive climate control and
defogging
Respiratory therapy
Asset and goods tracking
White goods
Pin Assignments
Mobile phones and tablets
Indoor weather stations
Description
Top View
The Si7023 Humidity and Temperature Sensor is a monolithic CMOS IC
integrating humidity and temperature sensor elements, an analog-to-digital
converter, signal processing, calibration data, and a PWM output. The PWM
output may be filtered to produce an analog voltage output. The patented use of
industry-standard, low-K polymeric dielectrics for sensing humidity enables the
construction of low-power, monolithic CMOS Sensor ICs with low drift and
hysteresis, and excellent long term stability.
The humidity and temperature sensors are factory-calibrated and the calibration
data is stored in the on-chip non-volatile memory. This ensures that the sensors
are fully interchangeable, with no recalibration or software changes required.
Patent Protected. Patents pending
The Si7023 is available in a 3x3 mm DFN package and is reflow solderable. It can
be used as a hardware- and software-compatible drop-in upgrade for existing RH/
temperature sensors in 3x3 mm DFN-6 packages, featuring precision sensing
over a wider range and lower power consumption. The optional factory-installed
cover offers a low profile, convenient means of protecting the sensor during
assembly (e.g., reflow soldering) and throughout the life of the product, excluding
liquids (hydrophobic/oleophobic) and particulates.
The Si7023 offers an accurate, low-power, factory-calibrated digital solution ideal
for measuring humidity, dew-point, and temperature, in applications ranging from
HVAC/R and asset tracking to industrial and consumer platforms.
Rev. 1.1 6/15 Copyright 2015 by Silicon Laboratories Si7023-A10Si7023-A10
Functional Block Diagram
2 Rev. 1.1