Temperature-to-voltage converter measures remote diodes with 1 °C accuracy
July 12, 2011 // Paul Buckley
Linear Technology Corporation has introduced a high accuracy temperature-to-voltage converter with built-in series resistance cancellation for 2.5 V to 5.5 V systems. Many low voltage systems today rely on temperature to assess overall system health and reliability. Traditional implementations require a series of filters, a precise reference and a current source, resulting in a complex conversion scheme prone to inaccuracies if not carefully designed. The LTC2997 is a simple temperature monitoring solution that measures a remote diode's temperature with ±1°C accuracy or local temperature with ±1.5°C accuracy, and outputs a voltage proportional to absolute temperature. The LTC2997 provides a precise, space-saving, micropower temperature monitoring solution.
The LTC2997's simplicity, accuracy and micropower consumption caters to a wide variety of applications, including system thermal control, energy harvesting, desktop and notebook computers, network servers and environmental monitoring. Two current sense inputs can be configured to measure either local or remote temperature. A built-in algorithm cancels the errors due to sensor series resistance when measuring a diode or transistor voltages. A 1.8 V voltage reference output is also available to share with an external ADC or for generating temperature threshold voltages to compare against the V PTAT output.
The LTC2997 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 LTC2997 is available today in a small RoHS compliant, 6-pin, 2 mm x 3 mm DFN package. Pricing starts at $1.45 each in 1,000 piece quantities.
More information about the LTC2997 temperature-to-voltage converter at
How industrial IoT will drive the MEMS market indirectly
December 19, 2014
Growth in the industrial Internet of Things equipment market is driving strong growth for microelectromechanical systems ...
Successful with phones & drones, Parrot ponders fFarming
Qimonda's late legacy: 28nm FeRAM
Volvo airs cloud-based cyclist protection system
Sony transforms eyewear into smart augmented reality devices
Harman grabs hidden infotainment gem S1nn
December 18, 2014
Automotive infotainment company Harman International Industries has reached an agreement to acquire S1nn GmbH & Co. Despite ...
Alps Electric puts cash into Qualtre
China VC lifts sensor startup to record funding
MIT discovers superconductor law
- New life for Embedded systems in the Internet of Things
- Virtualization and the Internet of Things
- RF/Microwave Instrumentation “S” Series Amplifiers
- Application Guide to RF Coaxial Connectors and Cables
InterviewCEO interview: Bosch's IoT startup is all about the system
Thorsten Mueller, CEO of Bosch Connected Devices and Solutions GmbH (Reutlingen, Germany), has been guiding the latest startup subsidiary of Robert Bosch GmbH since 2013 when he started the initiative ...
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, Arrow Electronics is giving away ten BeMicro Max 10 FPGA evaluation boards together with an integrated USB-Blaster, each package being worth 90 Euros, for EETimes Europe's readers to win.
Designed to get you started with using an FPGA, the BeMicro Max 10 adopts Altera's non-volatile MAX 10 FPGA built on 55-nm flash process.
The MAX 10 FPGAs are claimed to revolutionize...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.