HTS221 datasheet(1/33 Pages) STMICROELECTRONICS

Part #	HTS221

Description	Capacitive digital sensor for relative humidity and temperature

PDF	33 Pages

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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1 / 33 page

This is information on a product in full production.

August 2016

DocID026333 Rev 4

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HTS221

Capacitive digital sensor for relative humidity and temperature

Datasheet

- production data

Features

 0 to 100% relative humidity range

 Supply voltage: 1.7 to 3.6 V

 Low power consumption: 2 μA @ 1 Hz ODR

 Selectable ODR from 1 Hz to 12.5 Hz

 High rH sensitivity: 0.004% rH/LSB

 Humidity accuracy: ± 3.5% rH, 20 to +80% rH

 Temperature accuracy: ± 0.5 °C,15 to +40 °C

 Embedded 16-bit ADC

 16-bit humidity and temperature output data

 SPI and I²C interfaces

 Factory calibrated

 Tiny 2 x 2 x 0.9 mm package

 ECOPACK® compliant

Applications

 Air conditioning, heating and ventilation

 Air humidifiers

 Refrigerators

 Wearable devices

 Smart home automation

 Industrial automation

 Respiratory equipment

 Asset and goods tracking

Description

The HTS221 is an ultra-compact sensor for

relative humidity and temperature. It includes a

sensing element and a mixed signal ASIC to

provide the measurement information through

digital serial interfaces.

The sensing element consists of a polymer

dielectric planar capacitor structure capable of

detecting relative humidity variations and is

manufactured using a dedicated ST process.

The HTS221 is available in a small top-holed cap

land grid array (HLGA) package guaranteed to

operate over a temperature range from -40 °C to

+120 °C.

HLGA-6L

(2 x 2 x 0.9 mm)

Table 1. Device summary

Order code

Temperature range [°C]

Package

Packing

HTS221TR

-40 to +120

HLGA-6L

Tape and reel

www.st.com

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