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Maxim Integrated - Integration Nation
Blaine Bateman

Precision ICs Need to Take Temperature Measurements Into Account

Blaine Bateman
Page 1 / 2   >   >>
SunitaT0
SunitaT0
10/29/2013 3:15:18 AM
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Master
Re : Precision ICs Need to Take Temperature Measurements Into Account
The AD592 is a two incurable monolithic IC temperature transducer that offers an output current proportionate to complete temperature. For a wide variety of supply currents the transducer turns as a high impedance temperature dependent existing source of 1 µA/K.

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steve.taranovich
steve.taranovich
9/30/2013 11:05:15 PM
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Blogger
Re: on-chip temp feedback
Hi Brad---Interesting about "electrical" vs. "electronics"---EDN magazine had it's first issue in 1956 and EDN stood for Electrical Design News. The articles were about motors, motor controls, some vacuum tube designs, power electrical engineering, etc.

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B_Albing
B_Albing
9/30/2013 9:43:15 PM
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Editor
Re: on-chip temp feedback
@ST - and some of those papers from back in the early 20th century are a treat to read - when the IEEE was just the IEE. Just "Electrical" - no "Electronic" in their name.

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steve.taranovich
steve.taranovich
9/30/2013 8:10:54 PM
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Blogger
Re: on-chip temp feedback
The IEEE XPlore site has a wealth of information and is a system that goeas back to articles and white papers in the early part of the 20th century if you need to

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B_Albing
B_Albing
9/30/2013 7:49:22 PM
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Editor
Re: on-chip temp feedback
@Steve - Thanks ST, that's a good one to check out.

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B_Albing
B_Albing
9/30/2013 7:48:21 PM
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Editor
Re: on-chip temp feedback
@Rich - yep - I've seen that done before. Sometimes it's easier to elevate and then control (servo) the temp at some point above ambient than to make the ckt work the way you want it to over a broad range of somewhat unpredictable temps.

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steve.taranovich
steve.taranovich
9/30/2013 6:42:49 PM
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Blogger
Re: on-chip temp feedback
Aside from on-chip temperature measurement, there is a great paper on modeling temperature of an IC, "A Behavioral and Temperature Measurements-Based
Modeling of an Operational Amplifier Using VHDL-AMS" by IMS Laboratory and Schlumberger in France.

Although this technique deals with a temperature-dependent op-amp model and the model is especially developed for high temperatures, I believe it can be expanded to a more complex circuit model as well.

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RichQ
RichQ
9/30/2013 6:30:37 PM
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Newbie
Re: on-chip temp feedback
Perhaps one application of this would be a temperature compensated clock source where you keep the circuit at a known temperature (higher than ambient) so that you minimize drift.

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B_Albing
B_Albing
9/26/2013 9:27:47 PM
User Rank
Editor
Re: pico-meters vs ppm
@eafpres - looks like an editing error. If I find out who did that, I'll give them a stern talking to.

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samicksha
samicksha
9/26/2013 6:51:04 AM
User Rank
Artist
Re: Photonic thermocouple - Vehicle
Thanx eafpres, but can we use double/ single beam spectrophotometer for photonic IC, as it can help us in comparing the light intensity between two light paths...

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