Power Electronics / Power Management


Temperature sensing in high-precision applications

5 June 2002 Power Electronics / Power Management

When it comes to precision applications, the demands of a temperature sensor are tested to the maximum: superior accuracy, low power consumption, and a tiny package are just a few of the challenges that it - or they - must answer. Typical high-accuracy thermal management applications use thermistors. However, the thermistor is nonlinear and therefore requires several additional support components to digitise, linearise, and format.

Often, these applications integrate as many as four temperature sensing elements to accomplish this: base stations - to sense the overloads in the power amplifier; portables - to monitor the battery charge rate; instrumentation - in LCD panel temperature measurement; communications - in the frequency synthesizer system to compensate for temperature effects.

The newest member in Analog Devices' temperature sensor family that can address all these requirements in one chip is its ADT7301. This device is an accurate SOT temperature sensor, with a specification of ±0,5°C from 0°C to 70°C. Fully specified for 2,7 V to 5,5 V voltage supplies, it operates over a very broad temperature range, -55°C up to +150°C.

Along with this, the ADT7301offers high accuracy, very low power consumption, and comes in small 6-lead SOT and chip scale packages.

Applications are in: medical instrumentation; portable communication; industrial control; disk drives; and automotive.





Share this article:
Share via emailShare via LinkedInPrint this page

Further reading:

MOSFET half-bridge power stage
30 June 2020, Altron Arrow , Power Electronics / Power Management
Vishay Intertechnology introduced a new 30 V n-channel MOSFET half-bridge power stage that combines a high-side TrenchFET MOSFET and low-side SkyFET MOSFET with integrated Schottky diode in one compact ...

Read more...
Programmable electronic DC loads with energy recovery
30 June 2020, Vepac Electronics , Power Electronics / Power Management
Elektro-Automatik’s new series of electronic DC loads with energy recovery to mains, called EA-ELR 9000 HP, is an advancement of the series EA-ELR 9000. It offers a wider AC input range for operation ...

Read more...
18 V synchronous buck converters
30 June 2020, Altron Arrow , Power Electronics / Power Management
Suitable for consumer and industrial applications, Diodes Incorporated announced the AP62xxx family of high-efficiency synchronous step-down DC-DC converters including the AP62250 (2,5 A), AP62300 (3 A), ...

Read more...
MOSFET half-bridge power stage
30 June 2020, Altron Arrow , Power Electronics / Power Management
Vishay Intertechnology introduced a new 30 V n-channel MOSFET half-bridge power stage that combines a high-side TrenchFET MOSFET and low-side SkyFET MOSFET with integrated Schottky diode in one compact ...

Read more...
Laser diode driver power supplies
30 June 2020, Vepac Electronics , Power Electronics / Power Management
DEI offers a variety of laser diode driver instruments designed with the laser researcher, system designer and scientist in mind. In both bench-top and rack-mount configurations, as well as a variety ...

Read more...
USB Type-C power delivery controller
30 June 2020, CST Electronics , Power Electronics / Power Management
The MAX77958 from Maxim Integrated is a robust solution for USB Type-C CC detection and power delivery (PD) protocol implementation. It detects connected accessories or devices by using Type-C CC detection ...

Read more...
What’s in your healthcare monitor?
29 July 2020, Altron Arrow , Power Electronics / Power Management
System designers of portable and wireless medical monitoring devices used for in-home patient health monitoring purposes face daunting design challenges such as thermally- and space-constrained enclosures, as well as being able to transmit data without interference or interruption.

Read more...
Laser diode driver power supplies
29 July 2020, Vepac Electronics , Power Electronics / Power Management
DEI offers a variety of laser diode driver instruments designed with the laser researcher, system designer and scientist in mind. In both bench-top and rack-mount configurations, as well as a variety ...

Read more...
Low-voltage automotive buck converter
29 July 2020, Altron Arrow , Power Electronics / Power Management
Diodes Incorporated announced the AP61100Q, a 5,5 V, 1 A continuous output current, automotive-compliant, synchronous buck converter for point of load (POL) applications. With a fully integrated 110 mΩ ...

Read more...
LDO for noise-sensitive applications
29 July 2020 , Power Electronics / Power Management
Diodes Incorporated announced the AP7353 low dropout (LDO) regulator, which offers a high power supply rejection ratio (PSRR) in a small package, meeting the need for voltage regulation in noise-sensitive, ...

Read more...