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Digital interface to microcontroller:
• Typically 1-2 wire communication interface
• Buss can be shared with other sensors
Most are single output format:
• Normally unsigned value
• Requires processing to accommodate negative portion of range (Offset)
• Digital result needs conversion to °F/°C
Most are low power, making them suitable for battery applications
Operating Temperature Range: -55°C to 150°C typically
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Flexible form factor allows sensor to be placed where needed
Capable of withstanding harsh environments
Very wide operating temperature range with numerous impedance options:
• Some ranges as low as -196°C and up to 300°C
• Some as high as 300°C
• Custom ranges available
Repeatable and accurate
Easy to process analog signal
• A/D conversion with simple voltage divider
• Calculation using curve coefficients
• Lookup table
Can be applied within control circuit for real-time temperature compensation
Customizable
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Very localized measurement with limited capability for remote sensing
• May require separate board to place at optimum location for sensor
Requires careful placement and PCB layout so accuracy not influenced by other devices nearby or power through PCB
Requires processor to interpret signal
Not recommended for harsh environments
• Small plastic housing will not withstand harsh environments
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• Thermostats
• Indoor Air Quality
• External Temperature Monitor
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Automotive
• Transmission Fluid Temperature
• HVAC – Evaporator Air Temperature
• Electric Vehicle – Battery Temperature
Medical
• Esophageal Temperature
• Catheters
• Thermometers
Electrical - Buss Bar Temperature
Control - Temperature Compensation
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