LTC2986ILX#PBF Analog Devices Integrated Circuit (Quad Flat Packages) In Stock
10-channel multi-sensor digital temperature measurement system with 0.1°C maximum accuracy and on-chip EEPROM in a 7×7 mm LQFP package. Supports thermocouples, RTDs, thermistors, and diode sensors natively without external linearization. Available with worldwide shipping for industrial and medical precision temperature applications.
- Manufacturer
- Analog Devices
- Package
- Quad Flat Packages
- Pin Count
- 48
- Lifecycle
- ACTIVE
- Datasheet
- LTC2986ILX#PBF Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $25.7700(MOQ 1)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of LTC2986ILX#PBF?
- 0.1°C maximum measurement accuracy across all 10 channels with on-chip linearization for thermocouples, RTDs, and thermistors
- On-chip EEPROM stores sensor configuration and calibration data, retaining settings through power cycles without external memory
- Native support for Type B/E/J/K/N/R/S/T thermocouples and PT100/PT1000 RTDs eliminating separate signal conditioning analog front-ends
- 10 independent measurement channels in a single 7×7 mm package replacing up to 10 discrete temperature converter circuits
What is LTC2986ILX#PBF used for?
The LTC2986ILX#PBF is designed for industrial process control, medical instrumentation, and laboratory equipment where multiple sensor types must be measured simultaneously at 0.1°C accuracy without dedicated analog signal conditioning per channel. It suits test-and-measurement systems needing to read a mix of Type K thermocouples for high-temperature zones and PT100 RTDs for ambient reference channels from a single SPI-connected IC. The on-chip EEPROM makes it ideal for field-replaceable sensor modules that must retain calibration across power cycles.
What are the specifications of LTC2986ILX#PBF?
| Pbfree Code | No |
| Manufacturer Package Code | 05-08-1760 |
| YTEOL | 8.5 |
| Accuracy-Max (Cel) | 0.1Cel |
| Body Breadth | 7mm |
| Body Height | 1.4mm |
| Body Length or Diameter | 7mm |
| Housing | PLASTIC |
| JESD-609 Code | e3 |
| Mounting Feature | SURFACE MOUNT |
| Number of Bits | 24 |
| Operating Current-Max | 20mA |
| Output Interface Type | 4-WIRE INTERFACE |
| Package Equivalence Code | QFP48,.35SQ,20 |
| Package Shape/Style | SQUARE |
| R0-Nom | 100Ω |
| Sensors/Transducers Type | TEMPERATURE SENSOR,SWITCH/DIGITAL OUTPUT,SERIAL |
| Supply Voltage-Max | 5.25V |
| Supply Voltage-Min | 2.85V |
| Surface Mount | YES |
| Technology | CMOS |
| Terminal Finish | Matte Tin (Sn) |
| Termination Type | SOLDER |
| Package | Quad Flat Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
| Country of Origin | Malaysia |
Where can I find the LTC2986ILX#PBF datasheet?
LTC2986ILX#PBF Datasheet DownloadOfficial datasheet from Analog Devices
What are equivalent replacements for LTC2986ILX#PBF?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How does the LTC2986ILX#PBF achieve 0.1°C accuracy across different thermocouple types without external analog circuits?
The LTC2986ILX#PBF integrates a precision 24-bit ADC, cold-junction compensation circuit, and full polynomial linearization tables for Type B, E, J, K, N, R, S, and T thermocouples on-chip. The 0.1°C maximum accuracy is achieved by combining the high-resolution ADC with temperature-dependent correction coefficients stored in the device, eliminating the gain errors and cold-junction temperature uncertainty that afflict discrete analog amplifier plus lookup-table approaches. This integrated approach also avoids the need for external precision references and op-amp offsets which typically limit accuracy to ±1°C.
For a 10-zone industrial oven controller, how does the LTC2986ILX#PBF reduce PCB complexity compared to a discrete solution?
A discrete solution for 10 thermocouple channels would require 10 individual amplifier circuits, 10 cold-junction compensation thermistors, 10 ADC channels, and a microcontroller with sufficient SPI bandwidth to poll all channels. The LTC2986ILX#PBF replaces all of this with a single 7×7 mm IC connected via a 4-wire SPI interface, reducing PCB area by more than 80% and cutting component count from approximately 50 discrete parts to 5 passives plus the IC. Measurement accuracy also improves from ±1–2°C typical for discrete designs to 0.1°C maximum.
Can the LTC2986ILX#PBF mix thermocouple and RTD sensors on the same device simultaneously?
Yes, the LTC2986ILX#PBF supports mixed sensor types across its 10 channels, so a designer can connect Type K thermocouples on channels 1–6 and PT100 RTDs on channels 7–10 simultaneously. Each channel is independently configured via SPI registers, and the on-chip EEPROM preserves these configurations across power cycles. This flexibility is valuable in industrial process systems where furnace zones use Type K thermocouples for high-temperature measurement up to 1300°C while coolant circuits use PT1000 RTDs in the -200°C to +850°C range.
What SPI interface requirements does the LTC2986ILX#PBF have and how does host MCU selection affect system design?
The LTC2986ILX#PBF uses a standard 4-wire SPI interface operating at clock rates up to 2 MHz, making it compatible with virtually any MCU that has an SPI peripheral including 8-bit PIC and AVR devices. Conversion results are read as 24-bit words containing a status field, sign bit, and 16-bit temperature value in 0.003°C LSB units. A single SPI bus can serve the LTC2986ILX#PBF alongside other devices using chip-select arbitration, so no dedicated SPI bus is required. The conversion time per channel is approximately 60–200 ms depending on filter settings, which should be factored into polling loop timing for all 10 channels.
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About Analog Devices
Analog Devices (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing integrated circuits used in virtually all types of electronic equipment.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $134.9917 | $134.99 |
| 2+ | $130.4920 | $260.98 |
| 3+ | $116.9928 | $350.98 |
| 10+ | $29.8900 | $298.90 |
| 25+ | $28.0124 | $700.31 |
| 1000+ | $25.7700 | $25770.00 |
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