LTM2881HY-5 Analog Devices Integrated Circuit (BGA) In Stock
Analog Devices LTM2881HY-5 is an automotive-grade isolated RS-422/RS-485 single transceiver with differential Schmitt trigger input, integrated isolation, and 32-pin BGA package. Designed for robust bidirectional half-duplex serial communication in automotive and industrial environments with high noise immunity.
- Manufacturer
- Analog Devices
- Package
- BGA
- Pin Count
- 32
- Lifecycle
- ACTIVE
- Datasheet
- LTM2881HY-5 Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 105.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of LTM2881HY-5?
- Integrated isolation in a 32-pin BGA package enabling RS-422/RS-485 communication across isolation barriers without separate isolators
- Automotive-grade qualification supporting harsh -40°C to +125°C temperature ranges for in-vehicle network applications
- Differential Schmitt trigger input with EIA-485-A and TIA-485-A compliance ensuring noise-immune data reception on long cable runs
- Single-driver/single-receiver architecture supporting half-duplex RS-485 networks with up to 32 nodes or full-duplex RS-422 point-to-point links
What is LTM2881HY-5 used for?
The LTM2881HY-5 isolated RS-485/RS-422 transceiver is deployed in automotive body control networks, in-vehicle diagnostic buses, and industrial fieldbus segments where galvanic isolation between the controller and the bus is required by safety standards. Its integrated isolation eliminates the need for separate optocouplers or digital isolators, reducing BOM count and simplifying PCB layout in motor control units and battery management systems. Factory automation equipment, PLC backplane communication, and building automation controllers also use this device to achieve noise-immune multi-drop serial networks over cable runs exceeding 100 meters.
What are the specifications of LTM2881HY-5?
| Pbfree Code | No |
| Manufacturer Package Code | 05-08-1851 |
| YTEOL | 8.5 |
| Differential Output | YES |
| Driver Number of Bits | 1 |
| High Level Input Current-Max | 0.000001A |
| Input Characteristics | DIFFERENTIAL SCHMITT TRIGGER |
| Interface IC Type | LINE TRANSCEIVER |
| Interface Standard | EIA-485-A; TIA-485-A; EIA-422 |
| JESD-30 Code | R-PBGA-B32 |
| JESD-609 Code | e0 |
| Number of Functions | 1 |
| Out Swing-Min | 2.1V |
| Output Characteristics | 3-STATE |
| Output Low Current-Max | 0.004A |
| Output Polarity | COMPLEMENTARY |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR |
| Package Style | GRID ARRAY |
| Peak Reflow Temperature (Cel) | 245 |
| Receive Delay-Max | 140ns |
| Receiver Number of Bits | 1 |
| Supply Current-Max | 30mA |
| Supply Voltage-Max | 5.5V |
| Supply Voltage-Min | 1.62V |
| Supply Voltage-Nom | 3.3V |
| Supply Voltage1-Max | 5.5V |
| Supply Voltage1-Min | 4.5V |
| Supply Voltage1-Nom | 5V |
| Surface Mount | YES |
| Technology | HYBRID |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Tin/Lead (Sn63Pb37) |
| Terminal Form | BALL |
| Terminal Pitch | 1.27mm |
| Terminal Position | BOTTOM |
| Transmit Delay-Max | 1550ns |
| Package | BGA |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 3 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
| Country of Origin | Malaysia |
Where can I find the LTM2881HY-5 datasheet?
LTM2881HY-5 Datasheet DownloadOfficial datasheet from Analog Devices
What are equivalent replacements for LTM2881HY-5?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What communication standards does the LTM2881HY-5 support and at what maximum data rate?
The LTM2881HY-5 supports EIA-485-A (RS-485), TIA-485-A, and EIA-422 (RS-422) differential serial communication standards. RS-485 networks can typically operate at data rates up to 50 Mbps over short distances or at lower rates such as 100 kbps for cable runs exceeding 1000 meters, while the integrated isolation maintains signal integrity without introducing significant propagation delay penalty across the isolation barrier.
How does the integrated isolation in LTM2881HY-5 simplify a board design compared to a non-isolated RS-485 transceiver?
The LTM2881HY-5 combines the RS-485 transceiver and an isolation barrier in a single 32-pin BGA module, eliminating the need for a separate digital isolator IC, isolated DC-DC converter, and their associated decoupling capacitors. A conventional isolated RS-485 design using discrete components may require 6 to 10 additional components, while the LTM2881HY-5 reduces this to a single device, shrinking PCB area by 50% or more on the isolation interface section.
Is the LTM2881HY-5 qualified for automotive environments with extreme temperature swings?
Yes, the LTM2881HY-5 carries automotive-grade qualification with an operating temperature range of -40°C to +125°C, meeting the demands of under-hood and chassis-mounted electronics. Its differential Schmitt trigger input maintains a defined hysteresis threshold throughout this range, rejecting bus noise and reflections common in automotive wiring harnesses running at 12V to 48V bus voltages.
How many RS-485 nodes can be connected to a bus driven by the LTM2881HY-5?
In an RS-485 network configuration, the LTM2881HY-5 supports connection to a bus with up to 32 standard unit loads (as defined by EIA-485-A), which typically means 32 devices with 12 kΩ input impedance or up to 256 nodes when using 1/8 unit-load receivers. The differential output driver maintains at least ±1.5V differential swing across the 54 Ω termination resistance required at each cable end for reliable data transmission.
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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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