LTC2857IMS8-1#PBF

Drivers, Receivers, Transceivers Overview

The Analog Devices LTC2857IMS8-1#PBF is a low-power, full-duplex RS485/RS422 transceiver operating on a 5V supply. It supports maximum data rates of 20Mbps or 250kbps for low EMI applications. The receiver features a one-eighth unit load, supporting up to 256 nodes per bus (C, I-Grade). It includes enhanced ESD protection rated at ±15kV HBM and guaranteed failsafe operation under floating or shorted input conditions. The device operates within an industrial temperature range of –40°C to +85°C and is housed in an 8-lead MSOP package.

Drivers, Receivers, Transceivers Feature Summary

• Full-duplex communication with independent driver and receiver paths
• High input impedance receiver supporting up to 256 nodes on the bus
• Enhanced electrostatic discharge protection rated at ±15kV human body model
• Guaranteed logic-high output state when inputs are floating or shorted

Drivers, Receivers, Transceivers Applications

• Industrial RS485/RS422 communication networks
• Backplane transceivers requiring high node counts
• Level translation between different voltage domains
• Low EMI emission control applications via slew rate limiting

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix against official documentation to confirm package type and temperature grade. Ensure compatibility with system power supply requirements and interface standards before integration. Confirm availability through authorized distribution channels as stock levels fluctuate.

Drivers, Receivers, Transceivers Selection Notes

Select this component for designs requiring full-duplex RS485/RS422 connectivity with high node density. The 20Mbps data rate suits high-speed applications, while the 250kbps option minimizes electromagnetic interference. Verify that the 5V supply voltage aligns with the target system architecture and that the MSOP-8 package fits the PCB layout constraints.

Drivers, Receivers, Transceivers Part Context

This part belongs to the LTC285x family of low-power transceivers from Analog Devices. It shares core architectural features with half-duplex variants like the LTC2856 but provides simultaneous transmit and receive capabilities. The family emphasizes robustness in electrically noisy environments through integrated protection mechanisms.

Drivers, Receivers, Transceivers Replacement Considerations

Direct functional substitutes include other full-duplex RS485/RS422 transceivers with similar pinouts and electrical characteristics. Verify thermal performance and ESD ratings match application requirements when considering alternative manufacturers.