ADM4856AR-REEL

Drivers, Receivers, Transceivers Overview

The ADM4856AR-REEL is a full-duplex RS-485/RS-422 transceiver manufactured by Analog Devices Inc. It operates on a single 5 V supply and supports data rates up to 2.5 Mbps. The device features slew-rate limited outputs to minimize electromagnetic interference (EMI). It includes true fail-safe receiver inputs that ensure a logic high output when the bus is open or shorted. The component provides thermal shutdown and short-circuit protection for robust operation. It is specified over an operating temperature range of −40°C to +85°C.

Drivers, Receivers, Transceivers Feature Summary

• Full-duplex communication with dedicated driver and receiver differential lines
• Slew-rate limited outputs designed to reduce EMI and signal reflections
• True fail-safe receiver inputs guaranteeing a known high state during idle conditions
• Integrated thermal shutdown and short-circuit protection mechanisms

Drivers, Receivers, Transceivers Applications

• Industrial control systems requiring reliable multipoint communication
• EMI sensitive environments utilizing controlled slew rates
• DTE to DCE interfaces in packet switching networks
• Local area networks supporting up to 256 nodes per bus

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix against official documentation to confirm package type and reel specifications. Confirm compliance requirements such as RoHS status directly from the manufacturer's datasheet. Ensure the selected variant matches the required operational temperature range and voltage specifications for the target application environment.

Drivers, Receivers, Transceivers Selection Notes

Select this component for applications requiring simultaneous transmission and reception at speeds up to 2.5 Mbps. The 1/8-unit-load input impedance allows connecting up to 256 devices on a single bus. Verify compatibility with existing system voltage levels, as the device requires a 5 V supply. Consider the SOIC package availability if surface mount integration is required.

Drivers, Receivers, Transceivers Part Context

This part belongs to the ADM485x family of high-speed differential line transceivers. The series covers both half-duplex and full-duplex options with varying data rate capabilities. The ADM4856 specifically addresses full-duplex needs with a 2.5 Mbps throughput. It shares pinout compatibility with industry-standard counterparts like the MAX308x series.

Drivers, Receivers, Transceivers Replacement Considerations

The datasheet notes pin-compatible alternatives within the same family, such as the ADM4854 and ADM4855. Cross-reference specific speed requirements and duplex modes when selecting substitutes. Verify that any replacement maintains the necessary 5 V operation and industrial temperature ratings.