ADM4856ARZ

Drivers, Receivers, Transceivers Overview

The ADM4856ARZ is a full-duplex RS-485/RS-422 transceiver manufactured by Analog Devices Inc. It supports data rates up to 2.5 Mbps and operates on a single 5 V power supply. The device features slew rate limiting to reduce electromagnetic interference (EMI) and includes true fail-safe receiver inputs that ensure a logic high output when inputs are open or shorted. It provides thermal shutdown and short-circuit protection, with an operating temperature range from -40°C to +85°C.

Drivers, Receivers, Transceivers Feature Summary

• Full-duplex operation with dedicated driver outputs and receiver inputs
• Slew rate limited drivers for reduced EMI and signal reflections
• True fail-safe receiver inputs ensuring known logic states during idle conditions
• High input impedance allowing up to 256 transceivers on a single bus

Drivers, Receivers, Transceivers Applications

• Industrial control systems
• Local area networks
• Packet switching equipment
• DTE to DCE interfaces

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific package variant against the ordering guide, as the ADM4856 series is available in SOIC, LFCSP, and MSOP packages. Confirm the suffix matches the required tape-and-reel or tube packaging configuration. Ensure the component meets RoHS compliance requirements for the target assembly process.

Drivers, Receivers, Transceivers Selection Notes

Select the ADM4856ARZ for applications requiring simultaneous transmission and reception at speeds up to 2.5 Mbps. This full-duplex device is distinct from half-duplex variants like the ADM4852. Consider the 96 kΩ receiver input impedance for high node count buses and verify compatibility with 5 V logic levels.

Drivers, Receivers, Transceivers Part Context

The ADM4856ARZ belongs to the ADM4850 through ADM4857 family of 5 V RS-485/RS-422 transceivers. Within this series, it is designated as the full-duplex option with a 2.5 Mbps data rate capability. It shares pinout compatibility with other devices in the family while offering dedicated differential lines for independent transmit and receive paths.

Drivers, Receivers, Transceivers Replacement Considerations

The datasheet notes pin-compatible alternatives within the MAX308x family. Verify electrical specifications such as data rate and duplex mode before substituting with other manufacturers' components.