Overview
The LTC2984ILX#PBF, produced by Analog Devices Inc., is a high-accuracy digital temperature measurement system. This device is capable of measuring a wide variety of temperature sensors, including thermocouples (types B, E, J, K, N, S, R, T), 2-, 3-, or 4-wire RTDs, thermistors, and diodes. It provides digital output in °C or °F with 0.1°C accuracy and 0.001°C resolution. The LTC2984 also features automatic cold junction compensation and linearization of the temperature readings. It includes 20 reconfigurable analog inputs, excitation current sources, and fault detection circuitry, along with an EEPROM for storing custom coefficients and channel configuration data.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Resolution | 24 Bits | |
| Accuracy | 0.1°C | |
| Resolution | 0.001°C | |
| Operating Temperature Range | –40°C to 85°C | |
| Supply Voltage | 2.7V to 5.5V | V |
| Input Leakage | 1 nA to 10 nA | nA |
| Output Type | SPI | |
| Package Type | 48-Lead LQFP (7mm × 7mm) | |
| Common Mode Input Range | –0.3V to VDD + 0.3V | V |
Key Features
- Measures a wide variety of temperature sensors including thermocouples, RTDs, thermistors, and diodes.
- Automatic cold junction compensation and linearization.
- 20 reconfigurable analog inputs.
- Excitation current sources and fault detection circuitry.
- EEPROM for storing custom coefficients and channel configuration data.
- High accuracy and resolution: 0.1°C accuracy and 0.001°C resolution.
- SPI output interface.
- Operating temperature range: –40°C to 85°C.
Applications
- Industrial temperature monitoring systems.
- Aerospace and defense applications requiring high accuracy temperature measurements.
- Automotive systems for engine and ambient temperature monitoring.
- Medical devices that require precise temperature control and monitoring.
- Environmental monitoring and control systems.
Q & A
- What is the accuracy of the LTC2984ILX#PBF?
The LTC2984ILX#PBF has an accuracy of 0.1°C and a resolution of 0.001°C. - What types of temperature sensors can the LTC2984ILX#PBF measure?
The device can measure thermocouples (types B, E, J, K, N, S, R, T), 2-, 3-, or 4-wire RTDs, thermistors, and diodes. - What is the operating temperature range of the LTC2984ILX#PBF?
The operating temperature range is –40°C to 85°C. - What is the output interface of the LTC2984ILX#PBF?
The output interface is SPI. - Does the LTC2984ILX#PBF have automatic cold junction compensation?
Yes, it does have automatic cold junction compensation and linearization of the temperature readings. - How many reconfigurable analog inputs does the LTC2984ILX#PBF have?
The device has 20 reconfigurable analog inputs. - What is the package type of the LTC2984ILX#PBF?
The package type is a 48-Lead LQFP (7mm × 7mm). - Does the LTC2984ILX#PBF include an EEPROM?
Yes, it includes an EEPROM for storing custom coefficients and channel configuration data. - What is the common mode input range of the LTC2984ILX#PBF?
The common mode input range is –0.3V to VDD + 0.3V. - What are some typical applications of the LTC2984ILX#PBF?
Typical applications include industrial temperature monitoring, aerospace and defense, automotive systems, medical devices, and environmental monitoring.
