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SI7021 Datasheet I2C HUMIDITY AND TEMPERATURE SENSOR

Manufacturer: Silicon Laboratories

Download the SI7021 datasheet PDF. This datasheet also includes the SI7021-A20 variant, as both parts are published together in a single manufacturer document.

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Note: The manufacturer provides a single datasheet file (SI7021-A20-SiliconLaboratories.pdf) that lists specifications for multiple related part numbers.

General Description

The Si7021 I2C Humidity and Temperature Sensor is a monolithic CMOS IC integrating humidity and temperature sensor elements, an analog-to-digital converter, signal processing, calibration data, and an I2C Interface.

The patented use of industry-standard, low-K polymeric dielectrics for sensing humidity enables the construction of low-power, monolithic CMOS Sensor ICs with low drift and hysteresis, and excellent long term stability.

The humidity and temperature sensors are factory-calibrated and the calibration data is stored in the on-chip non-volatile memory.

Overview

Si7021-A20 I2C HUMIDITY AND TEMPERATURE SENSOR.

Key Features

  • Precision Relative Humidity Sensor.
  • Factory-calibrated.
  •  ± 3% RH (max), 0.
  • 80% RH.
  • I2C Interface.
  • High Accuracy Temperature Sensor.
  • Integrated on-chip heater.
  • ±0.4 °C (max),.
  • 10 to 85 °C.
  • 3x3 mm DFN Package.
  • 0 to 100% RH operating range.
  • Excellent long term stability.
  • Up to.
  • 40 to +125 °C operating.
  • Optional factory-installed cover range.
  • Low-profile.
  • Wide operating voltage (1.9 to 3.6 V).

More Datasheets from Silicon Laboratories

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