LTC2856CDD-2#PBF

Drivers, Receivers, Transceivers Overview

The Analog Devices LTC2856CDD-2#PBF is a low-power, half-duplex RS485/RS422 transceiver operating on a single 5V supply. It supports a maximum data rate of 250kbps with slew-rate limiting to minimize electromagnetic interference (EMI). The device features enhanced ESD protection capable of withstanding ±15kV human body model discharges without latchup or damage. It incorporates current-limited drivers and thermal shutdown for fault protection. The receiver input resistance exceeds 96kΩ, representing a one-eighth unit load that supports up to 256 nodes per bus. It operates within a commercial temperature range of 0°C to 70°C and is housed in an 8-lead 3mm × 3mm DFN package.

Drivers, Receivers, Transceivers Feature Summary

• Slew-rate limited driver outputs reduce high-frequency EMI emissions for low-noise applications
• High input impedance receiver allows connection of up to 256 nodes on the bus
• Enhanced ESD protection withstands ±15kV HBM on interface pins without damage
• Integrated thermal shutdown and current limiting protect against excessive power dissipation

Drivers, Receivers, Transceivers Applications

• Low EMI RS485/RS422 communication networks
• Industrial automation systems requiring high node density
• Backplane transceivers with strict noise emission limits

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix matches the required package type and temperature grade. Confirm the part number includes the lead-free designation. Ensure compatibility with the intended PCB footprint for the 8-lead DFN package. Check for any regional distribution restrictions before finalizing procurement.

Drivers, Receivers, Transceivers Selection Notes

Select this component when low EMI is critical due to its 250kbps slew-rate limited operation. Choose this part over higher-speed variants if the application requires supporting up to 256 nodes on a single bus segment. Verify that the commercial temperature range meets the environmental requirements of the deployment site.

Drivers, Receivers, Transceivers Part Context

This component belongs to the LTC2856 series of low-power RS485/RS422 transceivers. It is specifically designed as the half-duplex variant with a 250kbps maximum data rate. It shares common protection features with the full-duplex LTC2857 and LTC2858 families but offers distinct pin configurations suitable for half-duplex topologies.

Drivers, Receivers, Transceivers Replacement Considerations

LTC2856CDD-2#TRPBF