LTC1390CS datasheet by Linear Technology

LTC1390CS Frequently Asked Questions (FAQs)

• What is the maximum input voltage that can be applied to the LTC1390CS?
  The maximum input voltage that can be applied to the LTC1390CS is 7V, although the recommended maximum input voltage is 5.5V to ensure reliable operation.
• How do I ensure accurate temperature measurement with the LTC1390CS?
  To ensure accurate temperature measurement, it is essential to use a thermocouple with a high-quality junction, ensure good thermal contact between the thermocouple and the LTC1390CS, and calibrate the system to account for any offsets or nonlinearities.
• Can I use the LTC1390CS with a thermistor instead of a thermocouple?
  No, the LTC1390CS is specifically designed to work with thermocouples and is not compatible with thermistors. Using a thermistor with the LTC1390CS will not provide accurate temperature measurements.
• What is the purpose of the REF pin on the LTC1390CS?
  The REF pin on the LTC1390CS is a reference input that allows the user to set the zero-point of the temperature measurement. This can be useful in applications where the thermocouple is not connected to a fixed reference point, such as in a remote temperature sensing application.
• How do I handle cold-junction compensation with the LTC1390CS?
  The LTC1390CS has built-in cold-junction compensation, which means that it can automatically compensate for the temperature of the cold junction (the point where the thermocouple is connected to the LTC1390CS). However, the user must still ensure that the cold junction is at a stable temperature, and may need to add additional circuitry to compensate for any temperature variations.