LTC2856IMS8-2#PBF

Drivers, Receivers, Transceivers Overview

The LTC2856IMS8-2#PBF is a low-power, half-duplex RS485/RS422 transceiver manufactured by Analog Devices. It operates on a single 5V supply with a maximum data rate of 250kbps to minimize electromagnetic interference. The device features a one-eighth unit load receiver input resistance exceeding 96kΩ, supporting up to 256 nodes per bus. It includes enhanced ESD protection rated at ±15kV (HBM), current-limited drivers, and thermal shutdown for fault protection. The component is housed in an 8-lead MSOP package and supports an industrial temperature range from -40°C to +85°C.

Drivers, Receivers, Transceivers Feature Summary

• Slew-rate limited driver outputs reduce high-frequency harmonic emissions for low EMI applications
• High input impedance receiver allows connection of up to 256 nodes on the bus without excessive loading
• Integrated failsafe mechanism guarantees a logic-high output state when inputs are floating or shorted
• Robust protection against overvoltage, short circuits, and thermal overload ensures operational reliability

Drivers, Receivers, Transceivers Applications

• Low electromagnetic interference communication networks
• Industrial automation and control systems requiring high node density
• Backplane transceiver interfaces
• Level translation between different voltage domains

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix matches the required package type and temperature grade. Confirm that the #PBF designation indicates lead-free compliance and RoHS adherence. Ensure the procurement channel provides valid traceability documentation for the Analog Devices manufacturer source.

Drivers, Receivers, Transceivers Selection Notes

Select this model specifically for applications prioritizing low EMI emissions over high-speed data transfer. The 250kbps slew-rate limited variant is distinct from the 20Mbps versions within the family. Verify that the half-duplex configuration aligns with the system's bidirectional communication requirements.

Drivers, Receivers, Transceivers Part Context

This component belongs to the LTC2856 series of rugged RS485/RS422 transceivers. It shares core architectural features with the LTC2857 and LTC2858 families but differs in duplex mode and pin count. The IMS8-2 suffix denotes the industrial temperature grade, 8-lead MSOP package, and the 250kbps speed variant.

Drivers, Receivers, Transceivers Replacement Considerations

LTC2856IMS8-1#PBF offers identical packaging and protection but supports 20Mbps data rates. LTC2856CMS8-2#PBF provides the same electrical characteristics in the commercial temperature range.