LTC2858IDD-2#PBF

Drivers, Receivers, Transceivers Overview

The LTC2858IDD-2#PBF is a low power, full-duplex RS485/RS422 transceiver manufactured by Analog Devices Inc. It operates on a 5V supply with a maximum data rate of 0.25 Mbps (250kbps) to minimize electromagnetic interference through slew rate limiting. The device features enhanced ESD protection capable of withstanding ±15kV human body model discharges without latchup or damage. It supports up to 256 nodes per bus due to its one-eighth unit load receiver input impedance. Key electrical parameters include a maximum shutdown current of 5µA and a typical receive mode supply current of 700µA. The component is housed in a 10-lead DFN package.

Drivers, Receivers, Transceivers Feature Summary

• Slew rate limited driver outputs for reduced high-frequency EMI emissions
• Guaranteed failsafe receiver operation ensuring logic-high output during floating or shorted inputs
• High input impedance allowing connection of up to 256 nodes on the bus
• Power-up and power-down glitch-free driver outputs

Drivers, Receivers, Transceivers Applications

• Low EMI industrial communication networks
• Backplane transceiver systems
• Level translation interfaces

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix against official manufacturer documentation to confirm package type and temperature grade. Ensure compatibility with system voltage requirements and interface standards before integration. Cross-reference part markings with datasheet specifications to authenticate components.

Drivers, Receivers, Transceivers Selection Notes

Select this variant when low electromagnetic interference is critical, as the slew rate limiting restricts the data rate to 250kbps. Choose this over the -1 version if noise reduction outweighs the need for higher speed. Verify that the full-duplex architecture with enable pins meets the control logic requirements of the target application.

Drivers, Receivers, Transceivers Part Context

This component belongs to the LTC285x family of low power RS485/RS422 transceivers. It shares architectural similarities with the LTC2856 and LTC2857 series but is distinct in its full-duplex configuration with dedicated enable controls. The -2 suffix specifically denotes the slew-rate-limited performance characteristic within this product line.

Drivers, Receivers, Transceivers Replacement Considerations

LTC2858CDD-2#PBF

Drivers, Receivers, Transceivers FAQ

What is the maximum data rate for the LTC2858IDD-2?

The maximum data rate is 250kbps (0.25 Mbps) due to slew rate limiting designed to reduce EMI.

Does the receiver have a failsafe feature?

Yes, the receiver guarantees a high output state when inputs are floating, shorted, or terminated but not driven.

How many nodes can be supported on the bus?

The one-eighth unit load receiver input impedance allows for up to 256 nodes per bus.