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
Design win; IDT meets IKEA
April 24, 2015
Integrated Device Technology, Inc. (IDT) has disclosed that IKEA has chosen IDT’s wireless power transmitters to embed in ...
Eurotech to offload its cloud offering to iNebula
Electric vehicles: Driving range decides
Samsung details its flex display
3D-printing aerogels for energy storage
Gartner lowers 2015 chip market growth forecast
April 23, 2015
A mix of currency shifts, excess inventory and the end a PC upgrade cycle is set to slow growth in the global semiconductor ...
Hexagon, Xylon join forces for smart CT-based quality control systems
PSA, IBM tie Connected Car to the Internet of Things
Disposable sensor patch analyses golfers' swing
- Smart Capacitive Design Tips
- Wireless MCUs and IoT
- Battery Management System Tutorial
- Deciding if Automated Test is right for your Company
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, DecaWave is offering EETimes Europe's readers the chance to win two TREK1000 kits to evaluate its Ultra-Wideband (UWB) indoor location and communication DW1000 chip in different real-time location system topologies.
Worth €947, the kit allow designers to prove a concept within hours and have a prototype ready in days. Based on the two-way ranging scheme, the kit lets you test...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.