Overview
The LTC2986ILX-1#PBF is a multi-sensor high accuracy digital temperature measurement system developed by Analog Devices Inc. This device is capable of measuring temperature with a wide range of sensors, including standard 2-, 3-, or 4-wire RTDs, thermistors, and diodes, as well as thermocouples. It features excitation current sources and fault detection circuitry tailored for each type of temperature sensor. The LTC2986ILX-1#PBF also includes on-chip EEPROM for storing channel configuration data and custom coefficients, making it versatile for various temperature measurement applications.
Key Specifications
| Parameter | Min | Typ | Max | Units |
|---|---|---|---|---|
| Supply Voltage | 2.85 | 5.25 | V | |
| Supply Current | 15 | 20 | mA | |
| Sleep Current | 25 | 60 | µA | |
| Input Range (All Analog Input Channels) | -0.05 VDD | 0.3 VDD | V | |
| Resolution | 0.001°C | °C | ||
| Accuracy | ±0.1°C | °C | ||
| Operating Temperature Range | -40°C | 85°C | °C | |
| Package | 48-lead LQFP | |||
| Number of Channels | 10 | |||
| Interface | SPI |
Key Features
- Automatic thermocouple cold junction compensation and linearization for thermocouples (Type B, E, J, K, N, S, R, T).
- Support for standard 2-, 3-, or 4-wire RTDs, thermistors, and diodes.
- Excitation current sources and fault detection circuitry for each type of temperature sensor.
- Special modes for easy protection in universal multi-sensor applications.
- Custom tables for generic ADC readings and direct temperature readout from active analogue temperature sensors.
- Single supply voltage range from 2.85V to 5.25V with buffered inputs allowing external protection.
- 10 flexible inputs allowing sensor interchange and special protection modes.
- On-chip EEPROM for storing channel configuration data and custom coefficients.
- Automatic burn out, short-circuit, and fault detection for thermocouples.
- High accuracy and resolution with integral nonlinearity of 2ppm of VREF and offset error of 0.5µV at TA = 25°C.
Applications
- Direct thermocouple measurements.
- Direct RTD measurements.
- Direct thermistor measurements.
- Custom sensor applications.
- Industrial automation and control systems.
- Aerospace and defense applications requiring high accuracy temperature measurements.
- Medical devices and equipment.
- Automotive systems for engine and environmental temperature monitoring.
Q & A
- What is the LTC2986ILX-1#PBF?
The LTC2986ILX-1#PBF is a multi-sensor high accuracy digital temperature measurement system developed by Analog Devices Inc. - What types of temperature sensors does the LTC2986ILX-1#PBF support?
The device supports standard 2-, 3-, or 4-wire RTDs, thermistors, diodes, and thermocouples (Type B, E, J, K, N, S, R, T). - What is the supply voltage range of the LTC2986ILX-1#PBF?
The supply voltage range is from 2.85V to 5.25V. - What is the resolution and accuracy of the LTC2986ILX-1#PBF?
The device has a resolution of 0.001°C and an accuracy of ±0.1°C. - Does the LTC2986ILX-1#PBF have fault detection capabilities?
Yes, it includes automatic burn out, short-circuit, and fault detection for thermocouples. - What is the operating temperature range of the LTC2986ILX-1#PBF?
The operating temperature range is from -40°C to 85°C. - What interface does the LTC2986ILX-1#PBF use?
The device uses an SPI interface. - How many channels does the LTC2986ILX-1#PBF have?
The device has 10 flexible input channels. - What package type is the LTC2986ILX-1#PBF available in?
The device is available in a 48-lead LQFP package. - Does the LTC2986ILX-1#PBF have on-chip memory?
Yes, it includes on-chip EEPROM for storing channel configuration data and custom coefficients.
