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LM135 DATASHEET PDF

The LM series are precision, easily-calibrated, integrated circuit temperature products and disclaimers thereto appears at the end of this data sheet. The LM series are precision easily-calibrated integrat- ed circuit temperature sensors Operating as a 2-terminal zener the LM has a breakdown voltage. LESS THAN 1Ω DYNAMIC IMPEDANCE. DESCRIPTION. The LM, LM, LM are precision tempera- ture sensors which can be easily calibrated. They.

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LM datasheet, Pinout ,application circuits Precision Temperature Sensor

Thus a calibration of the. Compensates for both sensor and resistor tolerances datasheey. Reverse Characteristics Figure 4. Adjust R1 for the voltage across R3 equal to the Seebeck Coefficient times ambient temperature in degrees Kelvin. Unlike other sensors, the LM has a linear output. Wide Operating Supply Figure Buyers should obtain the latest relevant information before placing orders and should dataasheet that such information is current and complete.

Calibrated Error Figure 3.

ST Microelectronics

The output of the device calibrated or uncalibrated can be expressed as: The circuit has a dynamic impedance of less than. Buyer acknowledges and agrees that it is solely responsible for compliance with all legal, regulatory and safety-related requirements concerning its products, and any use of TI components in its applications, notwithstanding any applications-related information or support that may be provided by TI.

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Short LM and adjust R2 for voltage across R3 corresponding to thermocouple type. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes.

As in the case of all temperatures. TI is not responsible or liable for such altered documentation. TI has discontinued the production of the device. The single point calibration works because the. Buyers are responsible for their products and applications using TI components.

Page numbers for previous eatasheet may differ from page numbers in the current version. JavaScript is required to post comments. The Operating Output Voltage Change with Current specification can be used to calculate the additional error which could be up to 1 K maximum from the LMA, for example. Apply signal in place of thermocouple and adjust R3 for a gain of Errors in output voltage versus temperature are only slope or scale factor errors so a slope calibration at one temperature corrects at all temperatures.

Efficient temperature transfer assumes that the ambient air temperature is almost the same as the surface temperature where the LM leads are attached. The voltage appearing across the positive and negative terminals of the device at specified conditions of operating temperature and current.

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If a line is indented then it is a continuation of the previous line and the two combined represent the entire Device Marking for that device. If there is a great difference between the air temperature and the surface temperature, the actual temperature of the LM die would be at an intermediate temperature between the two temperatures.

This glossary lists and explains terms, acronyms, and definitions. If the sensor is used in surroundings where the. TI’s terms “Lead-Free” or “Pb-Free” mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that lead not exceed datadheet. For other conditions, self heating must be considered. Leave a Reply Cancel reply Your email address will not be published.

The low impedance and linear output make interfacing to readout or control circuitry especially easy. For example, the TO plastic package, where the copper leads are the principal thermal path to carry datasheef into the device, can be greatly affected by airflow.

Additional error can be introduced by varying load currents or varying supply voltage.