Anyone have a reliable spice model for the LM35 temp sensor they would want to share? Thanks... Jim
- posted
19 years ago
Anyone have a reliable spice model for the LM35 temp sensor they would want to share? Thanks... Jim
Colin posted one way.
If you just want the mathematical equivalent just use a behavioral voltage source:
Etemp node1 node2 Value = {(TEMP-273)*10m}
in PSpice, other "Spices" may use "B" sources and/or possibly use '..' instead of {..} for expression delimiting.
...Jim Thompson
-- | James E.Thompson, P.E. | mens | | Analog Innovations, Inc. | et | | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | | Phoenix, Arizona Voice:(480)460-2350 | | | E-mail Address at Website Fax:(480)460-2142 | Brass Rat | |
This model will simulate the temperature dependent output of an LM35, depending on the temperature setting in SPICE.
It is suitable for Linear Technology Corporation SwitcherCAD.
There is no simulation of the LM35 power supply, or any detail of the internal circuit (which you didn't mention, anyway).
*SPICE Simulation of National Semiconductor LM35 Precision Centigrade Temperature Sensor *
..end
There are more details and downloadable files at:
recently I found one on
but don't know how accurate this model is.
Duh! That's Colin's that he posted here on 4/24 ;-)
...Jim Thompson
-- | James E.Thompson, P.E. | mens | | Analog Innovations, Inc. | et | | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | | Phoenix, Arizona Voice:(480)460-2350 | | | E-mail Address at Website Fax:(480)460-2142 | Brass Rat | |
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