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Home » NEWEST Products » New by Manufacturer » Silicon Labs » Silicon Labs Si7005 Digital Temperature / Humidity Sensors
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Silicon Labs Si7005 Digital Temperature / Humidity Sensors

Silicon Labs Si7005 Digital Temperature / Humidity Sensors

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Silicon Labs Si7005 Digital Temperature / Humidity Sensors feature on-chip signal conditioning circuitry that simplifies the customer's sensing design platform. These Silicon Labs devices feature a sensor sub-system on-chip rather than a building block. This results in considerably lower component count and lower design complexity compared to traditional discrete resistive or capacitive sensor circuits. Silicon Labs Si7005 sensors feature factory calibration for both relative humidity and temperature sensing, eliminating the need for the customer to calibrate the sensor. An optional factory-installed hydrophobic filter for the Si7005 protects the exposed sensor during assembly and offers lifetime protection. Si7005 is ideal for applications that monitor or control humidity and temperature including automotive climate control and defogging, HVAC, refrigeration, weather stations, food processing, printers, asset tracking, and medical instruments such as nebulizers, oxygen concentrators and respiratory therapy equipment.


Features
  • Relative Humidity Sensor
    • ± 4.5% RH (maximum @ 20–80% RH)
  • Temperature Sensor
    • ±0.5ºC accuracy (typical)
    • ±1ºC accuracy (maximum @ 0 to 70°C)
  • 0 to 100% RH operating range
  • –40 to +85ºC (GM) or 0 to +70ºC operating range (FM)
  • Wide operating voltage range (2.1 to 3.6V)
  • Low Power Consumption
    • 240μA during RH conversion
  • I²C host interface
  • Integrated on-chip heater
  • 4x4mm QFN package
  • Excellent long term stability
  • Factory calibrated
  • Optional factory-installed cover
    • Low-profile
    • Protection during reflow
    • Excludes liquids and particulates (hydrophobic/oleophobic)
Applications
  • Industrial HVAC/R
  • Thermostats/humidistats
  • Respiratory therapy
  • White goods
  • Micro-environments/data centers
  • Automotive climate control and de-fogging
  • Asset and goods tracking


Block Diagram

Block Diagram

Silicon Labs Video: Si7005 Relative Humidity and Temperature Sensor IC Overview

Silicon Labs Si7005USB-DONGLE Si7005 USB Dongle Evaluation Kit

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Si7005USB-DONGLE Si7005 USB Dongle Evaluation Kit

Si7005 humidity and temperature sensor evaluation kit and accompanying graphical user interface software allow quick and easy access to the features and functions of the Si7005 sensor as well as enabling the evaluation of the sensor’s performance.


Si7005USB-DONGLE Contents
  • Si7005 USB dongle evaluation board
  • USB cable
  • Software and documentation CD


Si7005-EVB Si7005 Evaluation Kit Daughter Card

Si7005-EVB is a small daughter card that permits evaluation of the Si7005 at the end of a flex cable. It is a useful add-on to the Si7005USB-DONGLE (it plugs right in) if the customer wants to put a sensor in a temperature/humidity chamber or a product prototype.

Si7005-EVB Contents
  • Si7005EB daughter card
  • 3 feet flat ribbon cable
  • Documentation and software


Si7005EVB-UDP Si7005 UDP Eval Kit Daughter Card

Si7005EVB-UDP is a small daughter card that permits evaluation of the Si7005 in conjunction with certain Unified Development Platform (UDP) components such as the C8051F960 Ultra-Low Power Microcontroller Development Kit (C8051F960-A-DK). The daughter card is designed to plug directly into UDP MCU cards for fast prototyping and software development. In addition to an on-board Si7005, there is a connector for adding a Si7005-EVB via its flex cable, allowing the customer to place the Si7005 in a temperature/humidity chamber or a product prototype. For platforms other than the C8051F960-A-DK, please check with the factory to confirm compatibility.


Si7005EVB-UDP Contents
  • Si7005 UDP Daughter Card
  • Software and Documentation CD


Si7005EVB-UDP-F960 C8051F960 Ultra-Low Power Development Kit with Si7005 Daughter Card

Si7005EVB-UDP-F960 Development Kit is part of the Unified Development Platform (UDP) and combines the C8051F960 Ultra-Low Power Microcontroller Development Kit (C8051F960-A-DK) and the Si7005EVB-UDP humidity sensor daughter card with data logger demonstration code. It is a complete package designed to support hardware and software development using the Si7005 and Silicon Lab’s ultra-low power MCUs. It can also serve as a portable demonstration vehicle for the Si7005 (no PC required).


Si7005EVB-UDP-F960 Contents
  • UDP F960 MCU card with multiplexed LCD
  • UDP F960 daughter card (F960 pico card)
  • Si7005EVB-UDP daughter card
  • USB debug adapter
  • Power supply
  • Lithium battery (Tadiran TL-2150/S)
  • USB cables
  • UDP Development Kit Quick Start Guide
  • Development Kit CD
  • Third Party Tools CD
  • Silicon Labs
  • Sensors