HTS221:Capacitive digital sensor for relative humidity and temperature

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.

Key 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
产品规格
DescriptionVersionSize
DS10329: Capacitive digital sensor for relative humidity and temperature4.0742 KB
应用手册
DescriptionVersionSize
AN4503: 环境传感器:用于Android 的硬件抽象层3.0430 KB
AN4722: HTS221 digital humidity sensor: hardware guidelines for system integration1.0844 KB
Technical Notes & Articles
DescriptionVersionSize
TN1219: HTS221 digital humidity sensor: reference design implementation2.0367 KB
TN1218: Interpreting humidity and temperature readings in the HTS221 digital humidity sensor2.01 MB
TN1198: HLGA封装中MEMS传感器的表面贴装指南1.0240 KB
STM32 Open Development Environment
型号制造商Description
X-NUCLEO-IKS01A1STMotion MEMS and environmental sensor expansion board for STM32 Nucleo
X-NUCLEO-IKS01A2STMotion MEMS and environmental sensor expansion board for STM32 Nucleo
MEMS and Sensors Software
型号制造商Description
STSW-MEMS035STPlatform-independent device driver for HTS221
Product Evaluation Tools
型号制造商Description
STEVAL-MKI141V2HTS221 humidity sensor adapter board for standard DIL24 socket (full pinout)
解决方案评估工具
型号制造商Description
STEVAL-IDI001V1STA premium developer's tool for sensor hub applications
STEVAL-IDI003V2STMulti-sensor RF platform sensors board
样片和购买
型号QuantityUnit Price (US$) *PackagePacking TypeOperating Temperature (°C) (min)Operating Temperature (°C) (max)ECCN (EU)ECCN (US)Country of Origin
HTS221TR10001.4HLGA-6L 2X2X0.9Tape And Reel-40120NECEAR99-
质量和可靠性
型号PackageGradeRoHS Compliance GradeMaterial Declaration**
HTS221TRHLGA-6L 2X2X0.9IndustrialEcopack2md_a0r1-wspc-hlga-wspc-2x2x0.9-wspc-6lead_21ccmv0yaaa-wspc-(hts221tr)-wspc-wcp-wspc-ver2_signed.pdf
md_a0r1-wspc-hlga-wspc-2x2x0.9-wspc-6lead_21ccmv0yaaa-wspc-(hts221tr)-wspc-wcp-wspc-ver2.xml
Capacitive digital sensor for relative humidity and temperature HTS221
环境传感器:用于Android 的硬件抽象层 STEVAL-MKI142V1
HTS221 digital humidity sensor: hardware guidelines for system integration HTS221
HTS221 digital humidity sensor: reference design implementation HTS221
Interpreting humidity and temperature readings in the HTS221 digital humidity sensor HTS221
HLGA封装中MEMS传感器的表面贴装指南 HTS221
md_a0r1-wspc-hlga-wspc-2x2x0.9-wspc-6lead_21ccmv0yaaa-wspc-(hts221tr)-wspc-wcp-wspc-ver2_signed.pdf HTS221
md_a0r1-wspc-hlga-wspc-2x2x0.9-wspc-6lead_21ccmv0yaaa-wspc-(hts221tr)-wspc-wcp-wspc-ver2.xml HTS221