Multi-Sensor High Accuracy Digital Temp Measurement System

Directly Digitize RTDs, Thermocouples, Thermistors, and Diodes

LTC2983 - Multi-Sensor High Accuracy Digital Temperature Measurement System
LTC2983 – Multi-Sensor High Accuracy Digital Temperature Measurement System

Milpitas CA, USA — Linear’s new LTC??2983 measures a wide variety of temperature sensors and digitally outputs the result, in ??C or ??F, with 0.1 ??C accuracy and 0.001 ??C resolution powered from a single 2.85 V to 5.25 V supply.

The LTC2983 can measure the temperature of virtually all standard (type B, E, J, K, N, S, R, T) or custom thermocouples, automatically compensate for cold junction temperatures and linearize the results.

It has built-In Standard and User-Programmable Coefficients to linearize Thermocouples, RTDs and Thermistors. The device can also measure temperature with standard 2-, 3-, or 4-wire RTDs, thermistors, and diodes.

It has 20 reconfigurable analog inputs enabling many sensor connections and configuration options. The LTC2983 includes excitation current sources and fault detection circuitry appropriate for each type of temperature sensor.

The LTC2983 allows direct interfacing to ground referenced sensors without the need for level shifters, negative supply voltages, or external amplifiers.

All signals are buffered and simultaneously digitized with three high accuracy, 24-bit ?? ADC’s, driven by an internal 10ppm/??C (maximum) reference.


  • Direct Thermocouple Measurements
  • Direct RTD Measurements
  • Direct Thermistor Measurements
  • Custom Sensor Applications

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Linear Technology produces power management, data conversion, signal conditioning, RF and interface ICs, ??Module subsystems, and wireless sensor network products.

Linear Technology

Corporate Headquarters
1630 McCarthy Blvd.
Milpitas CA 95035-7417 USA

Executive, Sales and
Marketing Management:
720 Sycamore Dr.
Milpitas CA 95035-7417 USA

Phone: 408-432-1900
Fax: 408-434-0507