NSHT35

Humidity and Temperature Sensor with

SMBus and I

2

C Interface

Datasheet (EN) 0.2

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

 I

2

C Interface with communication speeds up to 1 MHz

and two user selectable addresses

 Typical accuracy of 3 %RH and 0.3 °C for NSHT35

 Very fast start-up and measurement time

 Tiny 8-Pin DFN package

Applications

 HVAC

 Smart Thermostats and Room Monitors

 White Goods

 Printers

 Handheld Meters

 Medical Devices

 Wireless Sensor

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