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:
NXP extends NFC ecosystem to the car
October 30, 2014
NFC (Near Field Communication) is a technology for contactless payment solutions, right? Yes, but the range of potential ...
Japan's MegaChips to buy MEMS maker SiTime
Freescale CEO: 'IoT isn't just buzz'
3D prints world's best inverter
Research project significantly improves electronics reliability
Netscout Acquires Communications Businesses From Danaher
October 29, 2014
Acquisitions let companies accelerate growth by increasing global footprint, product lines, and revenues. Lately, more and ...
"Quality happens at the system level, not just at the product level"
Some memories never die
Johnson Matthey snaps up Clariant energy storage business
- Wireless Power User Guide
- Secure is the New Smart
- 5 Best Practices for Designing Flexible Test Stations
- Intelligent PLCs Expand the Internet of Things
InterviewFreescale CEO: 'IoT isn't just buzz'
Coming after the solid third quarter results that produced higher operating margins and improving cash flow, Freescale Semiconductor's CEO Gregg Lowe had every reason to be chipper and lively when EE Times ...
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, Oscium is giving away three of its iMSO-204L dual analogue iOS oscilloscopes, worth USD400 each. Designed with native Lightning compatibility, the iMSO-204L transforms the iPad, iPhone, and iPod touch into an ultra-portable, two-channel oscilloscope.
Since Apple changed its connector, Oscium has been working to bring native compatibility to its customers. The third generation...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.