ams Datasheet Page 1
[v1-00] 2016-Oct-24 Document Feedback
ENS210
Relative Humidity and Temperature
Sensor with I²C Interface
The ENS210 integrates one relative humidity sensor and one
high-accuracy temperature sensor. The device is encapsulated
in a QFN4 package and includes an I²C slave interface for
communication with a master processor.
Ordering Information and Content Guide appear at end of
datasheet.
Key Benefits and Features
The benefits and features of ENS210, Relative Humidity and
Temperature Sensor with I²C Interface are listed below:
Figure 1:
Added Value of Using ENS210
Benefits Features
• Ultra-accurate
• Temperature sensor (±0.2°C)
• Relative humidity sensor (±3.5%RH)
• Wide sensing range
• Temperature operating range (–40°C to 100°C)
• Relative humidity operating range (0% to 100%)
• Wide operating voltage • 1.71V to 3.60V
• Small foot-print • 2.0mm x 2.0mm x 0.75mm
• Industry standard two-wire interface • Standard (100kbit/s) and fast (400kbit/s) I²C
• Low power
• Automatic low-power standby when not measuring
• Active current: 7.1μA @ 1Hz (1.8V)
• Standby current: 40nA
• Cost effective
• Digital pre-calibrated relative humidity and temperature
sensor
• Output directly in %RH and Kelvin
• Wide supply voltage range
• High reliabilit
y • L
ong-term stability
General Description
Page 2 ams Datasheet
Document Feedback [v1-00] 2016-Oct-24
ENS210 − General Description
Applications
The ENS210 applications include:
• Mobile phones, tablets and wearables
• Home and building climate control systems
• Transportation condition monitoring
• Wireless sensor nodes
• Personal health and wellness monitoring
• Laser printers
• Home appliance
• Industrial automation (e.g. server rooms)
• Baby incubators
• Weather stations
Block Diagram
The internal block diagram of ENS210 is shown in Figure 2.
The I²C (communication) interface is connected to a controller
which acts as the command interpreter and as bus master of
the internal Advanced Peripheral Bus (APB). The memory and
sensors are slaves of the APB. The MTP memory is used to store
the sensor calibration parameters and unique ID.
To reduce power consumption the controller only powers the
measurement engine when needed.
Figure 2:
Functional Blocks of ENS210
Measurement engine
Controller
I
2
C
interface
SCL
SDA
MTP
memory
Temperature
sensor
Relative humidity
sensor
APB