LTC2984
RECOMMENDED FOR NEW DESIGNSMulti-Sensor High Accuracy Digital Temperature Measurement System with EEPROM
- Part Models
- 3
- 1ku List Price
- Starting From $25.22
Part Details
- Directly Digitizes 2-, 3-, or 4-Wire RTDs, Thermocouples, Thermistors, and Diodes
- On-Chip EEPROM Stores Channel Configuration Data and Custom Coefficients
- Single 2.85V to 5.25V Supply
- 20 Flexible Inputs Allow Interchanging Sensors
- Automatic Thermocouple Cold Junction Compensation
- Built-In Standard and User-Programmable Coefficients for Thermocouples, RTDs and Thermistors
- Measures Negative Thermocouple Voltages
- Automatic Burn Out, Short-Circuit and Fault Detection
- Buffered Inputs Allow External Protection
- Simultaneous 50Hz/60Hz Rejection
- Includes 15ppm/°C (Max) Reference (I-Grade)
- Demo software with configuration checker and C-code generation tool
The LTC2984 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. The LTC2984 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. 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 LTC2984 includes excitation current sources and fault detection circuitry appropriate for each type of temperature sensor as well as an EEPROM for storing custom coefficients and channel configuration data.
The LTC2984 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 ΔΣ ADC's, driven by an internal 10ppm/°C (maximum) reference.
Applications
- Direct Thermocouple Measurements
- Direct RTD Measurements
- Direct Thermistor Measurements
- Custom Sensor Applications
Documentation
Data Sheet 1
Reliability Data 1
User Guide 2
Technical Articles 1
Device Drivers 1
LT Journal 1
Product Selector Card 1
Analog Dialogue 1
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| LTC2984CLX#PBF | 48-Lead LQFP (7mm x 7mm) | ||
| LTC2984HLX#PBF | 48-Lead LQFP (7mm x 7mm) | ||
| LTC2984ILX#PBF | 48-Lead LQFP (7mm x 7mm) |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
| No Match Found | ||
|
Apr 6, 2021 - 21_0046 Transfer of LQFP and LQFP_EP from AEM to AET |
||
| LTC2984CLX#PBF | PRODUCTION | |
| LTC2984HLX#PBF | PRODUCTION | |
| LTC2984ILX#PBF | PRODUCTION | |
|
Nov 13, 2019 - 19_0267 LTC2983,LTC2984,LTC2986 and LTC2986-1 die revision change. |
||
| LTC2984CLX#PBF | PRODUCTION | |
| LTC2984HLX#PBF | PRODUCTION | |
| LTC2984ILX#PBF | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Software Resources
Device Drivers 1
Evaluation Software 2
LTC2984 Demo Software
The LTC2984 demo software is designed to help configure, program and run the LTC2984. It can configure the LTC2984, save the configuration, check for configuration errors, run the conversion results into a text file, and create Linduino-ready C code based on the configuration. The software can be used by itself, or used in conjunction with the DC2399 demo circuit.
Can't find the software or driver you need?
Hardware Ecosystem
Tools & Simulations
Linduino 7
Linduino is Analog Devices’ Arduino compatible system for developing and distributing firmware libraries and example code for our integrated circuits. Each Linduino-supported product includes an example main program, defined in the LTSketchbook/Part Number folder and driver code, defined in the LTSketchbook/libraries folder.
Linduino code repository on GitHub and instructions on how to use the code.
Evaluation Kits
LTC2984 Demo Board | LTC2984 Motherboard (DC2399) + 20-Input Breakout Board (DC2210), requires DC2026
Resources
Starter Kit for LTC2984 | LTC2984 Motherboard (DC2399) + 20-Input Breakout Board (DC2210) + Linduino One (DC2026)
Resources
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