High accuracy temperature sensor enables adjustable alerts
August 06, 2012 // Paul Buckley
Linear Technology Corporation has introduced the LTC2996 high accuracy temperature sensor for 2.25 V to 5.5 V systems.
The LTC2996 measures a remote diode’s temperature with ±1°C accuracy and its own die temperature with ±2°C accuracy while rejecting errors due to noise and series resistance. The device provides a voltage-proportional-to-absolute-temperature (VPTAT) output, as well as individual undertemperature and overtemperature alert outputs, defined by user-adjustable thresholds. No code is required to configure the device. With a 200 µA quiescent current, the LTC2996 simply provides a precise, space-saving, micropower temperature monitoring solution.
The LTC2996’s accuracy, configurability and code-free operation caters to a wide variety of applications, including system thermal control, energy harvesting, desktop and notebook computers, network servers and environmental monitoring. Users can choose to measure internal or remote temperature and easily adjust the temperature thresholds with resistive dividers. Temperature conversions are updated every 3.5 ms to provide systems with sufficient time to react to alerts. The device includes 1.8 V voltage reference output to share with an external ADC or for generating temperature threshold voltages.
Availability and Pricing
The LTC2996 is offered in commercial, industrial and automotive versions, supporting operating temperature ranges from 0 to 70°C, -40 to 85°C and -40 to 125°C, respectively. The LTC2996 is available today in a RoHS compliant, 10-pin, 3 mm x 3 mm DFN package. Pricing starts at 1.95 each in 1,000-piece quantities.
More information about the LTC2996 temperature sensor at www.linear.com/product/LTC2996
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Internet of Things (IoT) manufacturer Ciseco has launched the Raspberry Pi ‘Wireless Inventors Kit’ (RasWIK), featuring 88 pieces to provide everything a Pi owner needs to follow a series of step-by-step projects or to create their own wireless devices, without the need for configuration or even writing code.
RasWIK has been designed to be highly accessible, demystifying the dark art of wireless and enabling anyone with basic computing skills to begin building wireless devices with a Raspberry Pi. You can create anything from a simple traffic light, to a battery monitor, or even a temperature gauge that sends data to the Xively IoT cloud so billions can access the data.This month, Ciseco is giving away twelve Raspberry Pi Wireless Inventors kits, worth £49.99 each for EETimes Europe's readers to win.
And the winners are...
In our previous reader offer, Farsens was giving away five kits for EEtimes Europe readers to evaluate its FenixVortex, Kineo and X1 wireless, battery free sensor tags.
Lucky winners include Mr A. Neil from the UK, Mr. E. Delvaux from Belgium, Mr Lengal from the Czech Republic, Mr H. Bijlsma from the Netherlands, and Mr G. Pfaff from Germany. All should be receiving their packages soon. Lets wish them some interesting findings with their projects.
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