NSHT35
Humidity and Temperature Sensor with
SMBus and I
2
C Interface
Datasheet (EN) 0.1
Copyright © 2020, NOVOSENSE
Page 1
Product Overview
NSHT35 is the temperature and humidity sensors with
SMBus and I
2
C interface. It builds on a CMOS-MEMS
sensor chip that is at the heart of Novosense’s new
humidity and temperature platform. NSHT35 providing
high accuracy measurements with very low power
consumption in a small DFN package. The DFN package
has a footprint of 2.5 x 2.5 mm
2
while keeping a height of
0.9 mm. This allows for integration of the NSHT35 into a
great variety of applications. Its functionality includes
enhanced signal processing, two distinctive and user
selectable I
2
C addresses and communication speeds of
up to 1 MHz. Additionally, the wide supply voltage range
of 1.8 V to 5.5 V guarantees compatibility with diverse
assembly situations. The capacitive-based sensor
includes new integrated digital features and a heating
element to dissipate condensation and moisture. The
NSHT35 digital features include programmable interrupt
thresholds to provide alerts and system wake-ups
without requiring a microcontroller to continuously
monitor the system.
Key Features
Fully calibrated, linearized, and temperature
compensated digital output
Wide supply voltage range, from 1.8 V to 5.5 V
RH measurement range: 0% to 100%
Temperature measurement range: –40°C to 125°C
I
2
C Interface with communication speeds up to 1 MHz
and two user selectable addresses
periodic data acquisition mode or single-shot mode
Typical accuracy of 3 %RH and 0.3 °C for NSHT35
Very fast start-up and measurement time
Tiny 8-Pin DFN package
Applications
Thermostats
Smart speakers (with voice assistant)
Washers and dryers
HVAC sensor transmitters (temperature, pressure, and
humidity)
HVAC system controllers
Wireless environmental sensors
Device Information
Part Number
Package
Body Size
NSHT35-DDNR
DFN (8)
2.5mm × 2.5mm
Typical Application
nRESETALERT
ADDR
GND
VDD
SCL
SDA
R
Die
pad
R
P
R
P
100nF
VDD
