ChipSensors shows microwatt humidity and temperature sensors
June 08, 2009 //
ChipSensors Ltd. (Limerick, Ireland), a startup with a technology that allows the surface of an integrated circuit to be used to sense temperature, humidity, certain gases, and even pathogens, has introduced a family of digital humidity and temperature sensors at the Sensors Exposition in Chicago Illinois.
LONDON ChipSensors Ltd. (Limerick, Ireland), a startup with a technology that allows the surface of an integrated circuit to be used to sense temperature, humidity, certain gases, and even pathogens, has introduced a family of digital humidity and temperature sensors at the Sensors Exposition in Chicago Illinois.
Because the sensing medium sits within the dielectric above a conventionally manufactured CMOS IC, the technology can be used to create highly-integrated industrial, scientific and medical sensors, with the IC implementing ADC, microcontroller and transmission functions to send collected data off-chip.
And because the devices in the family only consume microwatts of power, the sensors are being touted as suitable for energy-scavenging and long-life battery applications in wireless networks, goods monitoring and logistics.
ChipSensors' CS114 single-chip I2C digital sensor chip comes in a QFN package measuring 4-mm by 4-mm. The CS115 offers the same die in a 4-lead SIP package option, while the CS124 adds an auxiliary sensor input channel to the on-chip analog-to-digital converter.
The resolution of the ADC was not provided in datasheets but the company quotes an accuracy of measurement of +/- 2.0 percent relative humidity from 20 to 80 percent relative humidity and a +/- 0.5 degree C temperature accuracy over the range *40 to +125 degrees C.
The device operates from a 1.8 to 3.6 volt power supply with a peak current draw of 400 microamps and an average current draw of 1-microamp when taking 1 sample per minute. Samples are currently available in small quantities for evaluation, with wider sampling planned for Q3 2009, and production scheduled for Q4 2009, the company said.
"We're seeing excellent linearity and performance in initial beta trials," said Kevin Styles, vice president of marketing at ChipSensors, in a statement. "We are keen to engage with OEM customers to evaluate our sensors across a diverse range of applications, from industrial and instrumentation to automotive and medical."
ChipSensors patented use of porous Low-K dielectrics on the CMOS chip surface as humidity and gas sensors was described in EE Times in 2007.
Related links and articles:
USD 10,000 worth of components offered in Digi-Key/Silicon Labs IoT contest
March 26, 2015
Winners in an Internet-of-Things-themed design contest will receive $10,000 in semiconductor components to help bring their ...
Richard Feynman and homomorphic filtering
Giant spider-bot needs your inspiration
Smart cities will see it all
ST drops in 2014 MEMS ranking, says IHS
Samsung SDI forges microgrid systems alliance with ABB
March 26, 2015
World leading manufacturer of lithium-ion batteries, Samsung SDI, has signed a memorandum of understanding with power and ...
Try out CVD graphene on substrates up to 100x200mm
Thin and flexible Bluetooth LE beacons operate battery-free
Printable electroluminescent sheets in large-format
- Intelligent Over Temperature Protection for LED Lighting Applications
- Intel helps to Turbocharge Infotainment Systems Designs
- High Performance Portable DC Bench Power Supply: Save Money and Free Up Bench Real Estate by Building Your Own
- Software-Defined Radio Handbook
InterviewInfineon: CAN FD success goes at the expense of FlexRay
The faster version of the venerable CAN bus, CAN FD is currently taking off at several carmakers. Infineon's Thomas Böhm, Head of Body / Automotive, believes this could well go at the expense of FlexRay. ...
Filter WizardCheck out the Filter Wizard Series of articles by Filter Guru Kendall Castor-Perry which provide invaluable practical Analog Design guidelines.
Linear video channel
READER OFFERRead more
This month, Freescale is giving away 5 RIoTboards, worth 74 dollars each, for EETimes Europe's readers to win.
Designed to run Android operating systems efficiently or to run under Linux, the board is based on the Freescale i.MX 6Solo processor; using the ARM Cortex-A9 architecture.
The RIoTboard platform also includes a rich set of peripherals including a 10M/100M/Gb Ethernet port, 1...MORE INFO AND LAST MONTH' WINNERS...
December 15, 2011 | Texas instruments | 222901974
Unique Ser/Des technology supports encrypted video and audio content with full duplex bi-directional control channel over a single wire interface.