Datasheet

2
ENS160 Datasheet v0.95 preliminary / December 2020
Digital Metal-Oxide Multi-Gas Sensor
The ENS160 is a digital multi-gas sensor solution, based on metal oxide (MOX) technology
with four MOX sensor elements. Each sensor element has independent hotplate control to
detect a wide range of gases e.g. volatile organic compounds (VOCs) including ethanol,
toluene, as well as hydrogen and nitrogen dioxide with superior selectivity and accuracy.
For indoor air quality applications, the ENS160 supports intelligent algorithms to digitally
process raw sensor measurements on-chip. These algorithms calculate CO
2
-equivalents,
TVOC, air quality indices (AQIs) and perform humidity and temperature compensation, as
well as baseline management  all on chip! Moreover, a development option is available
to digitally output raw sensor measurements from each sensor element for customization.
The LGA-packaged device includes an SPI or I²C slave interface with separate VDDIO to
communicate with a main host processor. The ENS160 is a proven and maintenance-free
technology, designed for high volume and reliability.
Key Features & Benefits
TrueVOC™ air quality detection with in-
dustry-leading purity and stability, provid-
ing multiple outputs e.g. eCO
2
1
, TVOC and
AQIs
2
in compliance with worldwide IAQ
3
-
signal standards
Independent sensor heater control for
highest selectivity (e.g. to ethanol, tolu-
ene, acetone, NO
2
) and outstanding back-
ground discrimination
Immunity to siloxanes and humidity
4
Hassle-free on-chip heater drive control
and data processing  no need for external
libraries  no mainboard-CPU performance
impacts
Interrupt on threshold for low-power ap-
plications
Wide operating ranges: temperature: -40
to +85°C; humidity: 5 to 95%
5
; V
DD
: 1.71 to
1.98V; V
DDIO
1.71 to 3.6V
1
eCO
2
= equivalent CO
2
values for compatibility with
HVAC ventilation standards
2
AQI = Air Quality Index
3
IAQ = Indoor Air Quality
Applications
• Building Automation / Smarthome /
HVAC
6
o Indoor air quality detection
o Demand-controlled ventilation
o Smart thermostats
• Home appliances
o Cooker hoods
o Air cleaners / purifiers
• IoT devices
Properties
• Small-3 x 3 x 0.9mm LGA package
• Design-flexibility through standard,
fast and fast mode plus I
2
C- and SPI-
interfaces with separate VDDIO up to
3.6V
• T&R packaged, reflow-solderable
7
4
T/RH compensation via external T/RH-input
5
Non-condensing
6
HVAC = Heat, Ventilation and Air Conditioning
7
