This page provides a guide-line for Voltage and Temperature derating of Operational Amplifiers
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or Differential Amplifiers |
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Amplifiers |
Amplifiers |
Regulators |
Switches |
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Absolute maximum supply voltage |
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| Power dissipation |
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| AC Input Voltage |
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| Output Voltage |
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Output Voltage Open Drain |
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Output Current AC/DC |
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Current Max Short-Circuit |
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Maximum Junction Temperature |
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| Manufacturers |
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The table rows provide the different type of operational amplifier
configurations, while the columns give the recommended derating from 100
percent of operation.
The term used is Derating Factor or Stress Ration to describe the amount to derate the device parameter.
Note that the amount of derating applies to any temperature of operation, even room temperature.
However, the junction temperature is held to a maximum of 1000C. The numbers provided are recommendations to increase or insure reliable operation.
Increasing Air flow [Manufacturers of Fans] or attaching a Heat sink [Manufacturers of Heat sinks] are two methods
that can be used to increase the operational parameters at high ambient temperatures. Most data sheets use 25oC for device parameters.
![]() Op Amp Equivalent Circuit |
Main section, How To Derate Electronic Components, or IC Derating Most operational parameters are provided for a temperature of 25oC, with a maximum permissible junction temperature. Main section, How To Derate Electronic Components, or IC Derating |
Analog Temperature Sensors:
LM50
SOT-23 Single-Supply Centigrade Temperature Sensor
(+10 mV/°C) and has a DC offset of +500 mV.
LM62
2.7V, 15.6 mV/°C SOT-23 Temperature Sensor
VO = (+15.6 mV/°C x T°C) + 480 mV
LM135A - Precision Temperature Sensor
TO-92, TO-46, 8-pin SOIC
Related section, Op Amp Parasitic Compensation
How to derate operational amplifiers based on temperature, Op Amp Over-Heating, Over Heat Op Amps
Engineering Key words: Component Derating, Derate, Operational Amplifiers, Op Amp, IC, Integrated Circuit, Rated Temp, Temperature, Guide, Guideline, Example, Class, IC, Integrated Circuit.
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