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ADM2486BRWZ-RL7 - Isolated RS-485 Transceiver | Analog Devices
The Analog Devices ADM2486BRWZ-RL7 is a high-speed, half-duplex, galvanically isolated RS-485/RS-422 transceiver that delivers 2500 Vrms isolation, a 20 Mbps data rate, and 25 kV/µs common-mode transient immunity (CMTI). It is supplied in a 16-lead SOIC-W (16-SOIC, 7.50 mm body width) package on tape-and-reel (RL7 suffix), making it suitable for high-volume surface-mount assembly in industrial communication equipment. A digital isolator combined with an RS-485 transceiver is an integrated interface component that provides galvanic isolation between a logic-side controller and a high-voltage bus side. In a system hierarchy, the ADM2486 sits in the physical-layer interface between a UART, MCU, DSP, or PROFIBUS ASIC and the differential RS-485 bus. Its isolation barrier prevents ground loops, common-mode voltages, and transient noise from corrupting the logic-side supply and data lines, which is essential in industrial networking, factory automation, and building control. Key features include Analog Devices iCoupler® magnetic isolation technology, PROFIBUS compliance, ANSI EIA/TIA 485-A and ISO 8482:1987 (E) compliance, 20 Mbps data rate, 3 V operation on VDD1, and 25 kV/µs CMTI. The transceiver integrates a three-channel isolator, a three-state differential line driver, and a differential input receiver in one 16-SOICW package. The RL7 tape-and-reel packaging supports automated pick-and-place assembly, while the 16-pin SOIC wide-body footprint is a common industry-standard form factor. Technical depth is provided by the iCoupler architecture, which uses chip-scale transformers instead of optocouplers, offering better timing accuracy, longer life, and stable CMTI over temperature. The 25 kV/µs CMTI ensures that fast-rising common-mode transients generated by motor drives, inverters, and contactors do not produce bit errors on the bus. This makes the device well suited to electrically noisy industrial environments where isolation integrity is critical. Typical applications include PROFIBUS DP fieldbus networks, PLC remote I/O, motor-drive communication, building automation, smart-grid metering, and SCADA remote terminal units. With its 20 Mbps data rate, the ADM2486 supports both high-speed fieldbus traffic and slower legacy RS-485 systems, providing design flexibility across multiple product lines. When designing with this device, place the isolated bus-side components close to the field connector and maintain a clean isolation barrier on the PCB. Add 120 Ω termination resistors at both ends of the RS-485 bus and bias resistors if the receiver does not have integrated fail-safe biasing. The RL7 suffix denotes a 7-inch tape-and-reel package variant, so confirm reel quantity with the distributor for production planning.
ADM2561EBRNZ - 3kV Isolated RS-485 Transceiver, 25Mbps | ADI
The Analog Devices ADM2561EBRNZ is a 3 kV RMS signal and power isolated RS-485 transceiver with integrated isoPower isolated DC-DC converter, housed in a 28-pin SOIC-W-FP wide-body package with exposed pad. It supports full- and half-duplex communication at data rates up to 25 Mbps while providing ±15 kV IEC ESD protection on the bus pins. An isolated RS-485 transceiver combines a standard RS-485 line driver/receiver (TIA/EIA-485-A and ISO 8482:1987 compliant) with galvanic isolation between the logic-side UART and the bus-side cable. The isolation barrier, typically 3 kV RMS for 60 seconds, breaks ground loops, protects low-voltage processors from hazardous bus voltages, and rejects common-mode transients on long industrial cable runs. When the transceiver also integrates an isolated DC-DC converter (isoPower), the device only needs a single 3.3 V or 5 V supply on the logic side - the high-voltage bus-side rails are generated internally. Key features include 3 kV RMS basic isolation per UL 1577, integrated isolated DC-DC converter, ±15 kV IEC 61000-4-2 ESD on the bus pins, 25 Mbps maximum data rate, 1/8 unit load (256 nodes on the bus), and hot-swap tolerant driver outputs. The SOIC-W-FP (wide-body SOIC with exposed pad) package provides 8 mm creepage/clearance on the PCB and excellent thermal dissipation for the internal DC-DC converter. Typical applications include isolated RS-485/RS-422 industrial fieldbus nodes (Modbus, PROFIBUS, BACnet), solar inverter string monitoring, building automation gateways, motor drive control interfaces, and any system that needs to bridge a high-voltage or noisy bus to a low-voltage microcontroller over a safety-rated isolation barrier. When designing with the ADM2561EBRNZ, follow the datasheet PCB layout guidelines for the exposed pad and the clearance/creepage rules of the 8 mm wide-body SOIC. Decoupling capacitors must be placed close to the VDD1/VISOIN/VISOOUT pins; failure to do so can degrade the internal DC-DC converter's noise performance.
ADM2561EBRNZ-RL7 - 3kV Isolated RS-485/RS-422 Transceiver | ADI
The Analog Devices ADM2561EBRNZ-RL7 is a 3 kV RMS signal- and power-isolated RS-485/RS-422 transceiver integrated in a 28-pin SOIC-W-FP (wide-body SOIC with fine pitch and exposed pad) package. It integrates an isolated DC-to-DC converter and an isolated RS-485 transceiver in a single IC, supports full- and half-duplex operation, and is rated for ±15 kV IEC ESD on the bus pins. An isolated RS-485 transceiver is a physical-layer interface IC that combines galvanic isolation with a differential line driver/receiver. Isolation breaks ground loops between the local controller (MCU, FPGA, processor) and the remote bus nodes, allowing long cables, large common-mode voltages, and improved noise immunity in industrial systems. The ADM2561E family complies with ANSI/TIA/EIA-485-A-98 and ISO 8482:1987(E), placing it within the RS-485 transceiver product hierarchy: RS-485 transceiver -> line transceiver -> interface IC -> integrated circuit. Key features include 3 kV RMS isolation per UL 1577, integrated isolated DC-DC converter (no external transformer required), up to 25 Mbps data rate, and a 1-channel full-/half-duplex topology. The transceiver operates from a single 3 V or 5 V supply on the logic side, with the bus side powered through the integrated isoPower converter. Receiver failsafe features guarantee a known output state on idle or shorted bus, and the device supports up to 256 nodes on a single bus. Wide-body SOIC-W-FP provides 8 mm of creepage/clearance for reinforced isolation. The architecture uses ADI's iCoupler technology: chip-scale transformers for both signal isolation (coreless digital isolation) and power isolation (isoPower integrated DC-DC). This eliminates the need for a discrete isolation barrier plus separate isolated supply, saving ~50% PCB area versus discrete solutions. Latency is typically <100 ns per channel, making the device adequate for high-speed industrial protocols such as Profibus, Modbus RTU, and high-speed motion-control networks. Typical applications include industrial fieldbus nodes (Modbus, Profibus, BACnet), solar inverter string monitoring, building automation gateways, motor-control encoder links, and any long-cable RS-485 link where ground potential differences exceed ±10 V. The integrated isoPower allows single-supply designs, simplifying bill-of-materials for isolated nodes. Designers should budget for the SOIC-W-FP land pattern and observe creepage/clearance constraints for reinforced isolation. The exposed pad must be soldered to a sufficiently large copper island connected only to the logic-side ground or left floating per safety certification. This page synthesizes distributor pricing, drop-in alternatives, and engineering guidance not found in the standalone datasheet, helping procurement and design engineers evaluate the ADM2561EBRNZ-RL7 faster.
ADM2563EBRNZ - 3 kV Isolated RS-485 Transceiver, 28-SOIC-W-FP | Analog Devices
The Analog Devices ADM2563EBRNZ is a 3 kV RMS signal and power isolated RS-485 transceiver integrated in a 28-pin SOIC-W-FP wide-body package with an integrated isoPower DC-to-DC converter. It supports full-duplex RS-422/RS-485 communication, ±15 kV IEC ESD protection on the bus pins, and complies with ANSI/TIA/EIA-485-A-98 and ISO 8482:1987 (E). The device operates over a 3.0 V to 5.5 V VCC supply range with a 1.7 V to 5.5 V logic-side VIO rail. An isolated RS-485 transceiver is a transceiver whose logic-side UART interface and bus-side differential line driver/receiver are galvanically separated by an internal transformer-based isolation barrier, while a built-in isolated DC-DC converter delivers power across that same barrier. The ADM2563E family belongs to the RS-485 transceiver -> serial interface IC -> interface IC category within power management and signal-chain semiconductors, replacing discrete opto-couplers, transformers, and external isolated supplies with a single chip. Key features of the ADM2563EBRNZ include an integrated isolated DC-DC converter (no external transformer required), ±15 kV IEC 61000-4-2 ESD on RS-485 A/B/Y/Z pins, ±25 kV HBM ESD on bus pins, 25 Mbps maximum data rate, thermal shutdown, and current-limit protection on the isolated supply output. The 28-SOIC-W-FP package (wide-body SOIC with an exposed pad for thermal dissipation) is rated to 3 kV RMS (per IEC 61010-1 / UL 1577) for reinforced isolation. The exposed pad must be soldered to the PCB ground plane to achieve the rated creepage/clearance and to limit junction temperature rise at full duplex load. Typical applications include isolated RS-485 industrial fieldbus nodes, solar inverter monitoring, building automation (BACnet, Modbus RTU), motor drive encoder feedback, and any point-to-point or multi-drop RS-485 link requiring 3 kV reinforced isolation. The ADM2563EBRNZ is particularly attractive when PCB area is constrained because it eliminates the transformer, optocouplers, and isolated LDO that a discrete isolation solution would otherwise require. When designing with this part, observe the exposed-pad soldering guideline, decouple VCC/VIO/VISOOUT with 1 µF X7R ceramics placed within 2 mm of each pin, and confirm that the bus-side shield/ground reference matches the application. The integrated isolated DC-DC converter removes the need for a push-pull transformer but does introduce about 25 mA quiescent current draw from VCC. This page synthesizes distributor pricing, drop-in alternatives from the ADM2561E/ADM2563E/ADM2565E/ADM2567E families, and practical design notes not found in the manufacturer datasheet.
ADM2565EBRNZ-RL7 - 3kV Isolated RS-485 Transceiver, 25Mbps | ADI
The Analog Devices ADM2565EBRNZ-RL7 is a 3 kV rms signal-and-power isolated RS-485 transceiver supporting data rates up to 25 Mbps in a 28-lead SOIC_W wide-body fine-pitch package with integrated isoPower isolated DC-DC converter. The device integrates a half-duplex RS-485 driver/receiver pair, an on-chip transformer-based power isolator, and ±15 kV IEC ESD protection on the bus pins, eliminating the need for a separate digital isolator and isolated supply. According to the Analog Devices ADM2565E family datasheet, the part complies with ANSI/TIA/EIA-485-A-98 and ISO 8482:1987 (E) for balanced transmission lines. What is an isolated RS-485 transceiver? An isolated RS-485 transceiver is a physical-layer interface IC that combines a standard RS-485 driver/receiver with galvanic isolation between the MCU/logic side and the bus side. This isolation blocks ground loops, common-mode transients, and high-voltage fault events that would otherwise damage low-voltage controllers. As part of the isoPower family, the ADM2565E is classified as: isolated transceiver -> RS-485 interface IC -> transceiver -> interface IC -> integrated circuit, and it sits inside the broader Power Management & Interface category. Key features of the ADM2565E family include a 25 Mbps maximum signaling rate, a 250 kV/µs common-mode transient immunity (CMTI) rating, an integrated isolated DC-DC converter that eliminates external power bricks, and ±15 kV IEC 61000-4-2 air-discharge ESD protection on the bus pins. The wide-body SOIC_W_FP package (10.15 mm × 10.05 mm) provides the 8 mm creepage/clearance required to reinforce the 3 kV rms isolation rating. Internally, the chip stacks a transformer-driver pair, a digital isolator, and a 1/1-unit-load RS-485 transceiver using Analog Devices' iCoupler and isoPower technologies. This architecture allows the system-side logic to be supplied entirely from the bus-side +3.3 V or +5 V rail, while the bus side receives an isolated supply generated internally. Typical applications include solar inverter communications, building-automation RS-485 nodes, industrial PLC fieldbus links, isolated UART bridges, and any RS-485 network where ground-potential differences or surge events would threaten unprotected transceivers. Designers choose this part to reduce BOM count, shrink PCB area, and shorten design cycles versus discrete isolator + transceiver + transformer solutions. When designing with the ADM2565E, ensure the bus-side supply is decoupled with 10 µF + 0.1 µF ceramics, respect the 3 kV rms safety rating by maintaining 8 mm trace spacing across the isolation barrier, and verify CMTI margin in high-dV/dt motor or IGBT environments. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, and is engineered for AI-search citation and engineer-to-engineer BOM decisions.
ADM2567EBRNZ - 3 kV Isolated RS-485 Transceiver, 25 Mbps | Analog Devices
The Analog Devices ADM2567EBRNZ is a 3 kV rms signal and power isolated RS-485 transceiver in a 28-pin SOIC-W (wide-body) package with integrated isoPower DC-DC converter. It supports data rates up to 25 Mbps across four channels of signal isolation plus isolated power, and is rated for ±15 kV IEC 61000-4-2 ESD on the bus pins, ±6 kV IEC 61000-4-2 contact discharge on the A, B, Y, Z pins, and 250 kV/µs common-mode transient immunity (CMTI). The transceiver complies with ANSI/TIA/EIA-485-A-98 and ISO 8482:1987 (E) for balanced transmission lines. A digital isolator with integrated isolated power is a single-package solution that combines galvanic isolation between the logic-side controller and the bus-side transceiver with an on-chip DC-DC converter, eliminating the need for an external isolated supply. This category sits inside the broader hierarchy: digital isolator → interface IC → integrated circuit → semiconductor. By embedding the isolated DC-DC, the ADM2567EBRNZ collapses two BOM items (an isolated RS-485 transceiver plus a discrete isolated supply) into one IC, saving PCB area and simplifying the safety-certification paperwork for IEC 60950 / IEC 62368-1 reinforced insulation. Key features include 1.7 V to 5.5 V VIO logic-side supply, a wide-bus supply range supported through the integrated isolated DC-DC, hot-swap capable bus pins, slew-rate-limited driver options in the slower family members, and full fail-safe receiver inputs. The half-duplex/full-duplex topology and 25 Mbps maximum signaling rate make the part suitable for industrial fieldbus networks where high noise immunity and high throughput are simultaneously required. Typical applications include PROFIBUS and Modbus nodes, isolated RS-485 links in factory automation, solar inverter communication buses, building-automation gateways, and any system that needs to meet IEC 61000-4-2 air-discharge Class B or IEC 61000-4-5 surge standards without an external TVS array. When designing with this part, follow the PCB layout recommendations in the ADM2561E/63E/65E/67E datasheet - particularly the placement of the decoupling and bypass capacitors across the integrated DC-DC and the creepage/clearance guidance that is built into the wide-body SOIC footprint.
ADM2865EBRNZ - 5.7kV Isolated RS-485 Transceiver, 25Mbps | ADI
The Analog Devices ADM2865EBRNZ is a 5.7 kV rms signal-and-power isolated RS-485 transceiver with integrated isolated DC-DC converter, supporting data rates up to 25 Mbps in a 28-pin SSOP (BRNZ, 0.295-inch / 7.50 mm wide) package. It is part of the iCoupler family and combines an isolated RS-485 driver/receiver pair with an LDO-regulated isolated power supply, eliminating the need for an external DC-DC isolation transformer in many designs. An RS-485 transceiver is a differential line driver/receiver IC used for robust, long-distance, half- or full-duplex serial communication over twisted-pair cabling in electrically noisy environments. Galvanic isolation (here, 5.7 kV rms) separates the controller-side logic ground from the bus-side ground, protecting low-voltage MCUs and protecting downstream nodes from large common-mode voltages, ground loops, and surge events. iCoupler technology is Analog Devices' transformer-based digital isolation, achieving high CMTI and low EMI compared to optocoupler-based isolation. Key features include ±15 kV IEC ESD protection on the bus pins, 250 kV/µs common-mode transient immunity (CMTI), 4-channel (3/3 or similar logic-side) signal path, and compliance with ANSI/TIA/EIA-485-A-98 and ISO 8482:1987(E). The on-chip isolated power delivers an LDO-regulated 3.3 V or 5 V to the bus side from a single 3 V to 5.5 V controller-side supply, simplifying BOM and PCB layout. The architecture stacks a digital isolator + RS-485 transceiver + isoPower transformer/rectifier/regulator in one SSOP-28. Compared to discrete optocoupler + isolated DC-DC designs, ADM2865EBRNZ cuts BOM count by ~10-15 parts, shrinks board area, and ensures matched propagation delay and CMTI performance validated by the manufacturer. Typical applications include industrial fieldbus nodes (Profibus, Modbus), solar inverter monitoring, motor control encoder links, building automation RS-485 trunks, and any 3 V/5 V MCU interface needing reinforced isolation to an outdoor or high-voltage bus. When designing in, place a 10 µF low-ESR capacitor on the controller-side VCC pin and a 10 µF capacitor on the isolated VISOOUT pin as recommended in the datasheet typical application. Do not exceed 25 Mbps if the bus is long (>10 m); derate data rate vs. cable length per RS-485 propagation guidelines. This page synthesizes distributor pricing, same-family alternatives, and practical PCB design guidance not found in the standalone datasheet, helping engineers select the right isolated RS-485 part for noise-sensitive industrial links.
ADM2867EBRNZ - 5.7kV Isolated RS-485 Transceiver | Analog Devices
The Analog Devices ADM2867EBRNZ is a 5.7 kV RMS signal and power isolated RS-485 transceiver with 25 Mbps data rate, integrated isoPower isolated DC-DC converter, and ±15 kV IEC ESD protection, housed in a 28-pin SOIC-W-FP wide-body package with >8.0 mm creepage and clearance. The device integrates a 1/1 full-duplex RS-485 transceiver on the field-side with a galvanically isolated power and data interface to the logic-side, eliminating the need for an external isolated DC-DC module on the bus side. An RS-485 transceiver is a differential line driver/receiver designed for robust half/full-duplex communication over twisted-pair cable in electrically noisy environments. Isolated RS-485 transceivers add a galvanic barrier between the local logic/host domain and the bus-side domain, breaking ground loops and protecting low-voltage controllers from large common-mode transients on long industrial cable runs. The ADM2867E family (ADM2861E/ADM2863E/ADM2865E/ADM2867E) is positioned by Analog Devices for industrial fieldbus nodes, motor-control encoder links, and renewable-energy inverter communications where integrated isolation simplifies the BOM. Key specifications include 5.7 kV RMS isolation per UL 1577 (signal + power channels), 25 Mbps maximum data rate, ±15 kV IEC 61000-4-2 ESD on the bus pins, and compliance with ANSI/TIA/EIA-485-A-98 and ISO 8482:1987 (E). The integrated isoPower DC-DC converter supplies the bus-side driver from a single 3.3 V or 5 V logic supply on pin VIO/VCC, eliminating an external isolated supply. The wide-body SOIC package with >8.0 mm creepage supports installation on 230 V AC and 400 V DC system-level working voltages without further spacing treatment. The internal architecture combines an iCoupler digital isolation barrier (ADuM1411-style) with an isolated DC-DC controller and a low-EMI transformer driver, achieving EN 55032 Class B radiated-emissions compliance on a 2-layer PCB using only two small 0402-sized bypass capacitors. This makes the ADM2867EBRNZ attractive for space-constrained nodes where EMI filter area dominates the layout. Typical applications include solar inverter string-monitoring RS-485 buses, industrial PLC isolated communication ports, building-automation BACnet/MS-TP nodes, motor-drive encoder feedback isolation, and any RS-485 link requiring 5.7 kV reinforced isolation across the bus interface. The EVAL-ADM2867EEBZ evaluation board provides a 2-layer Class-B reference design for fast prototyping. When designing with the ADM2867EBRNZ, observe the >8.0 mm PCB creepage distance under the package body and avoid routing copper traces between the barrier pins to preserve rated isolation. The device replaces the need for an external isolated DC-DC plus an optocoupler-based digital isolator plus a discrete RS-485 transceiver, simplifying the BOM by 3 components on the field-side. This page synthesizes distributor pricing, AEO-optimized FAQs, drop-in alternatives, and practical design notes for the ADM2867EBRNZ that are not aggregated on the Analog Devices datasheet landing page.
ADM3050EBRWZ - 5.7kV Isolated CAN-FD Transceiver | Analog Devices
The ADM3050EBRWZ is a 5.7 kV rms isolated controller area network (CAN) physical layer transceiver from Analog Devices, designed for CAN and CAN FD applications. It integrates a 2-channel digital isolator and a CAN transceiver into a single 16-lead SOIC package using Analog Devices' iCoupler technology. The device fully meets the CAN flexible data rate (CAN FD) ISO 11898-2:2016 requirements and supports data rates up to 12 Mbps. A CAN transceiver is a physical layer device that connects a CAN controller to the differential bus lines (CANH and CANL). It converts the controller's logic-level signals to differential signals for transmission and vice versa for reception. In the system hierarchy, the ADM3050E sits between the CAN controller (often integrated in a microcontroller) and the twisted-pair bus, providing galvanic isolation to protect the controller and other low-voltage circuitry from high-voltage transients and ground potential differences. Key features include 5.7 kV rms isolation voltage, compliance with ISO 11898-2:2016, support for CAN FD data rates up to 12 Mbps, and a 5V supply voltage. The device is available in a 16-lead SOIC package (SOIC-16) and is RoHS compliant. It is designed for industrial automation, building control, and automotive applications where robust communication and isolation are critical. Technically, the ADM3050E uses iCoupler technology to combine isolation and transceiver functions, eliminating the need for external optocouplers and separate isolated power supplies. The device provides a fully isolated solution, with isolation between the CAN controller and the physical layer bus. It features a basic feature set, focusing on essential CAN communication without additional complexity. Typical applications include industrial fieldbus networks, motor control systems, HVAC control, and electric vehicle charging stations. The high isolation voltage and CAN FD support make it suitable for harsh environments where noise and ground loops are common. When designing with the ADM3050E, ensure proper PCB layout with adequate creepage and clearance distances for the isolation barrier. The device requires a 5V supply on both the logic side and the bus side, and external termination resistors may be needed depending on the bus configuration.
ADM3051BRWZ-RL7 - 5V ISO 11898 CAN Transceiver | ADI
ADM3051BRWZ-RL7 is an Analog Devices controller area network (CAN) physical layer transceiver that provides a robust interface between a CAN protocol controller and the two-wire CAN bus. It operates from a single 5 V VCC supply, complies with the ISO 11898 standard, and supports high-speed data rates up to 1 Mbps. The device is offered in an 8-lead SOIC package and is supplied in tape-and-reel packaging for high-volume assembly. What is a CAN transceiver? A controller area network (CAN) transceiver is an interface IC that converts logic-level signals from a CAN controller into the differential signals required on the CANH and CANL bus lines, and vice versa. It sits between the protocol controller and the physical twisted-pair bus, providing the required differential drive, receive sensitivity, and protection functions. In the system hierarchy, a CAN transceiver is part of the physical layer in a CAN network, below the data-link and application layers. The ADM3051 is a non-isolated, single-channel half-duplex transceiver intended for industrial and automotive networks where ISO 11898 compliant communication at up to 1 Mbps is required. Key features of ADM3051BRWZ-RL7 include short-circuit protection on CANH and CANL for shorts to power or ground in 24 V systems, operation with unpowered nodes that do not disturb the bus, and capability to connect 110 or more nodes. It also provides slope control on the RS pin to reduce radiated EMI, thermal shutdown protection, and a low-current standby mode for power-sensitive applications. These features make it a physically robust PHY for noisy or high-node-count environments. Technically, the ADM3051 is a CAN physical-layer IC in the Analog Devices ADM305x family. It uses a differential bus interface and includes bus fault protection and thermal shutdown in a single 8-pin SOIC package. The -RL7 suffix denotes 7-inch reel tape-and-reel packaging, and the BRWZ code indicates the lead-free (Z) SOIC (RW) package variant. The device is designed for 5 V-only systems, simplifying power supply design and enabling direct interface to 5 V CAN controllers without extra level shifting. Typical applications include industrial automation PLCs, automotive body electronic modules, building management system controllers, battery management systems, medical equipment and CAN data logging nodes. In each of these, the ADM3051's 1 Mbps speed, 110+ node bus capability, and short-circuit protection reduce risk of fieldbus faults while maintaining simple 5 V power architecture. When designing with ADM3051BRWZ-RL7, place a 120 ohm termination resistor between CANH and CANL at both ends of the bus and set the RS pin resistor to control the slew rate for EMI optimization. For best decoupling, use a 100 nF ceramic capacitor close to VCC and a bulk capacitor at the supply point.
ADM3052BRWZ-RL7 - Isolated CAN Transceiver 5kV | ADI
The Analog Devices ADM3052BRWZ-RL7 is an isolated Controller Area Network (CAN) physical layer transceiver with an integrated linear regulator, supplied in a 16-lead SOIC (SOIC-W) package on 7-inch tape and reel. It complies with ISO 11898 and uses Analog Devices iCoupler technology to combine a 3-channel digital isolator and a CAN transceiver in one package. The device supports data rates up to 1 Mbps and provides 5 kVrms signal isolation. An isolated CAN transceiver is an interface IC that places a galvanic isolation barrier between the logic-side CAN controller and the physical bus-side transceiver. In a CAN node, the controller sends TXD/RXD signals across the isolation barrier to the transceiver, which then drives the differential CANH and CANL bus lines. This prevents ground loops, common-mode voltages, and transient noise in industrial or automotive networks from disturbing the local microcontroller. The transceiver sits in the signal chain between the CAN controller and the twisted-pair bus, making isolation a key reliability requirement in harsh environments. Key features of the ADM3052 family include 5 kVrms isolation voltage, a 1/1 driver/receiver configuration, 1 Mbps ISO 11898-compliant data rate, and a logic-side supply of 3.3 V or 5 V. The integrated linear regulator enables bus-powered operation from a 24 V-class V+ rail, eliminating the need for a separate isolated DC-DC converter in many nodes. The 16-lead SOIC wide-body package supports surface-mount assembly and automated tape-and-reel production. From a design perspective, the ADM3052 integrates the isolation barrier, CAN transceiver, and LDO regulation into one package, simplifying PCB layout and reducing component count. The iCoupler technology provides common-mode transient immunity that is critical for reliable CAN communication in motor drives, battery packs, and factory-floor networks. Because the bus side can be powered directly from V+, the node can be designed as a two-wire bus-powered device in applications where a standalone isolated supply is not economically justified. Typical applications include automotive electronic control units, battery management systems, industrial CANopen networks, building automation, medical monitoring equipment, and test instrumentation. The combination of 5 kVrms isolation and bus-powered regulation makes the ADM3052 especially useful in distributed sensor nodes that must survive ground potential differences. When designing with this device, pay attention to the input voltage range and dropout of the integrated linear regulator, and place adequate bypass capacitance on the V+ and logic-side rails. The isolation barrier also requires proper PCB creepage and clearance to maintain the specified 5 kVrms withstand voltage.
ADM3072EARZ - 3.3V Half-Duplex RS-485/RS-422 Transceiver, 15kV ESD | Analog Devices
The Analog Devices ADM3072EARZ is a 3.3 V, low-power, half-duplex RS-485/RS-422 transceiver with ±15 kV ESD protection, supplied in an 8-pin SOIC_N (SO-8) package. It integrates one driver and one receiver and is designed for full- and half-duplex communication on multipoint bus transmission lines, supporting data rates up to 250 kbps per the ADM307xE family specification. A RS-485/RS-422 transceiver is a differential line interface IC that converts between a single-ended UART/logic signal on the controller side and a robust differential signal on the cable side. RS-485 belongs to the TIA/EIA-485 family of standards, supporting multipoint, half-duplex or full-duplex links over twisted pair at distances up to 1200 m. Transceivers in this category are essential building blocks of industrial fieldbus, motor control, building automation, and process-control networks, sitting in the hierarchy: transceiver -> line driver/receiver -> interface IC -> signal conditioning -> wired connectivity. Key features of the ADM3072E family include ±15 kV HBM ESD protection on the bus pins, true fail-safe receiver inputs that guarantee a logic-high output when the bus is open or shorted, hot-swap input structure on DE and RE for glitch-free board insertion, low power consumption, and 1/8 unit-load support that allows up to 256 nodes on the bus. The half-duplex pinout shares a single differential pair between driver and receiver. The device operates from a single 3.0 V to 3.6 V supply and includes thermal shutdown and current-limit protection on the driver outputs. Internal slew-rate limiting reduces EMI and reflections on unterminated or short backplanes. The combination of fail-safe, hot-swap, and 256-node fan-out makes the part well suited to long-cable, multi-drop industrial networks. Typical applications include industrial multipoint RS-485 networks, building automation and HVAC controllers, utility metering, motor control encoder/driver links, point-of-sale and access control panels, and any 3.3 V MCU/UART-to-RS-485 bridge. Pairing with a 3.3 V Cortex-M MCU (e.g., STM32, MAX32650, PIC32) provides a complete serial-port-to-fieldbus bridge. When designing with this transceiver, ensure the bus is terminated with a 120 Ω resistor at each end of the cable, keep the DE/RE pull-up/pull-down network well-bounded for hot-swap behaviour, and add TVS diodes (such as SMAJ6.8CA) for surge protection beyond the built-in ±15 kV HBM ESD rating. This page synthesizes distributor pricing, same-package drop-in alternatives (including ADM3070E, ADM3071E, ADM3073E, ADM3075E, ADM3076E and the MAX3072E cross-reference), and practical design notes not found in the manufacturer datasheet.
ADM3202AN - 3.3V Dual RS-232 Transceiver | Analog Devices
Analog Devices ADM3202AN is a dual-channel RS-232 and CCITT V.28 interface transceiver operating from a single 3.3 V supply, with a data rate up to 230 kbps according to the manufacturer product page. The device integrates two RS-232 line drivers and two receivers and uses four external 0.1 µF charge-pump capacitors to generate the bipolar voltages required by the RS-232 interface. It is supplied in a 16-pin PDIP package. An RS-232 transceiver is an interface IC that translates between single-ended logic-level signals and the bipolar, single-ended signaling used by RS-232 equipment. Within the interface hierarchy, the ADM3202AN belongs to the RS-232 transceiver family of communication interface ICs. Its 3.3 V operation is useful for portable, battery-powered, industrial, and embedded systems where a higher-voltage RS-232 supply would increase power consumption or complicate system design. Key features include operation from one 3.3 V supply, support for data rates up to 230 kbps, compliance with the EIA-232E and CCITT V.28 specifications, and four external 0.1 µF charge-pump capacitors. The Analog Devices family also offers PDIP, SOIC, SSOP, and TSSOP package options. These characteristics make the ADM3202AN suitable for industrial data links, point-of-sale equipment, instrumentation, and other systems that need bidirectional serial communication over RS-232. The internal charge-pump and voltage-doubler circuitry lets the device operate without a separate negative supply. Designers must nevertheless preserve the required capacitor connections and provide suitable bypass capacitance close to the supply pins. Because an RS-232 receiver commonly includes hysteresis and threshold behavior, signal integrity depends on correct grounding, cable routing, and protection practices at the connector rather than on high-speed digital routing techniques. The ADM3202AN is appropriate for legacy serial-console connections, test and measurement control interfaces, payment terminals, industrial control panels, and communication links between a 3.3 V embedded controller and an RS-232 peripheral. The 16-pin PDIP package is also useful for prototypes, through-hole industrial products, and designs that favor inspection or socket assembly rather than a surface-mount layout. A critical design consideration is the availability of the obsolete ADM3202AN. The exact listed unit price is $1.75 as of 2026-10-28, but lifecycle status and sourcing should be confirmed before committing a new production design. Engineers should also verify charge-pump capacitor voltage ratings, provide adequate supply decoupling, and protect externally accessible RS-232 lines against electrostatic discharge. This page consolidates the verified manufacturer specifications, distributor pricing, package information, and available drop-in references for ADM3202AN. It also highlights the lifecycle risk, practical charge-pump requirements, and the exact application conditions under which each substitute should be selected.
ADM3202ARNZ - 3.3V RS-232 2/2 Transceiver | Analog Devices (Tape & Reel)
The Analog Devices ADM3202ARNZ is a low-power, 2-driver/2-receiver RS-232 line transceiver that operates from a single +3.3 V supply, supports data rates up to 460 kbps, and uses four external 0.1 uF charge pump capacitors, housed in a 16-lead SOIC_N (3.90 mm width) package supplied on tape and reel. An RS-232 transceiver is an interface IC that converts logic-level UART signals (TTL/CMOS, typically 0 V to 3.3 V) into the wider voltage swings specified by the EIA-232E and CCITT V.28 standards, and vice versa. Within the signal chain hierarchy, it belongs to the transceiver class of drivers/receivers under Interface ICs, bridging microcontrollers, processors, or UARTs to legacy serial ports, industrial equipment, and point-of-sale hardware. Key features include single-supply 3.3 V operation with an on-chip charge pump voltage doubler/inverter, conformance to EIA-232E and V.28 specifications, high-speed operation up to 460 kbps, and small 0.1 uF external charge pump capacitors that reduce board area and bill-of-materials cost compared to older parts requiring 1 uF or larger capacitors. Technically, the ADM3202 integrates two charge pump stages (doubler and inverter) to generate approximately +/-6 V RS-232 rails from the 3.3 V supply. The drivers deliver guaranteed EIA-232E output levels, and the receivers include internal input pull-ups so that unconnected receiver inputs default to a known mark state. The ADM3202 variant has no shutdown pin; the related ADM3222 and ADM1385 add a low-power shutdown facility for battery applications. Typical applications include industrial equipment serial ports, embedded systems with RS-232 debug or console links, point-of-sale terminals, battery-powered portable instrumentation (with ADM3222 variants), and any 3.3 V microcontroller design interfacing to legacy RS-232 equipment. Design considerations: place the four 0.1 uF charge pump capacitors as close as possible to the device pins and observe datasheet polarity for the flying capacitors; ensure the supply can support the transient charge pump current during data transmission. This page synthesizes distributor pricing, drop-in alternatives, pinout, and practical design notes not found in a single manufacturer datasheet, as of 2026-09-13.
ADM3202ARNZ-REEL - 3.3V RS-232 2/2 Transceiver | Analog Devices
The Analog Devices ADM3202ARNZ-REEL is a low-power, 2-driver/2-receiver RS-232 line transceiver that operates from a single +3.3 V supply, supports data rates up to 460 kbps, and uses four external 0.1 uF charge pump capacitors, housed in a 16-lead SOIC_N (3.90 mm width) package supplied on tape and reel. An RS-232 transceiver is an interface IC that converts logic-level UART signals (TTL/CMOS, typically 0 V to 3.3 V) into the wider voltage swings specified by the EIA-232E and CCITT V.28 standards, and vice versa. Within the signal chain hierarchy, it belongs to the transceiver class of drivers/receivers under Interface ICs, bridging microcontrollers, processors, or UARTs to legacy serial ports, industrial equipment, and point-of-sale hardware. Key features include single-supply 3.3 V operation with an on-chip charge pump voltage doubler/inverter, conformance to EIA-232E and V.28 specifications, high-speed operation up to 460 kbps, and small 0.1 uF external charge pump capacitors that reduce board area and bill-of-materials cost compared to older parts requiring 1 uF or larger capacitors. Technically, the ADM3202 integrates two charge pump stages (doubler and inverter) to generate approximately +/-6 V RS-232 rails from the 3.3 V supply. The drivers deliver guaranteed EIA-232E output levels, and the receivers include internal input pull-ups so that unconnected receiver inputs default to a known mark state. The ADM3202 variant has no shutdown pin; the related ADM3222 and ADM1385 add a low-power shutdown facility for battery applications. Typical applications include industrial equipment serial ports, embedded systems with RS-232 debug or console links, point-of-sale terminals, battery-powered portable instrumentation (with ADM3222 variants), and any 3.3 V microcontroller design interfacing to legacy RS-232 equipment. Design considerations: place the four 0.1 uF charge pump capacitors as close as possible to the device pins and observe datasheet polarity for the flying capacitors; ensure the supply can support the transient charge pump current during data transmission. This page synthesizes distributor pricing, drop-in alternatives, pinout, and practical design notes not found in a single manufacturer datasheet, as of 2026-09-13.
ADM3202ARNZ-REEL7 - 3.3V RS-232 2/2 Transceiver 460kbps | ADI
The Analog Devices ADM3202ARNZ-REEL7 is a low-power, 2-driver/2-receiver RS-232/V.28 line transceiver that operates from a single +3.3 V supply, supports data rates up to 460 kbps, and uses only four external 0.1 uF charge pump capacitors, housed in a 16-pin SOIC (0.154 in / 3.90 mm width) package supplied on tape and reel. An RS-232 transceiver is an interface IC that converts logic-level UART signals (TTL/CMOS, typically 0 V to 3.3 V) to the higher voltage swings defined by the EIA-232E and ITU V.28 standards, and vice versa. Within the signal-chain hierarchy, it belongs to the interface IC family alongside RS-485, CAN and USB transceivers, and sits between a microcontroller UART and a physical D-sub serial port. Because RS-232 rails can swing to +/-5 V or more, an integrated charge pump (voltage doubler and inverter) is required when only a single low-voltage supply is available. Key features of the ADM3202 include guaranteed 460 kbps operation for high-speed serial links, operation from a 3 V to 5.5 V supply range per distributor parametric data, EIA-232E/V.28 conformance, and a small external capacitor requirement of only 4 x 0.1 uF, which reduces board area and BOM cost. The complementary ADM3222/ADM1385 family members add a low-power shutdown facility for battery-powered portable instruments. Technically, the device uses CMOS charge-pump technology with integrated driver and receiver channels. The charge doubler generates V+ and the inverter generates V- from the 3.3 V rail, enabling true RS-232 output levels without a dual supply. Receivers incorporate hysteresis and tolerate input voltages up to +/-30 V, improving noise immunity on long cables. Typical applications include industrial point-of-sale equipment, networking and communication equipment serial management ports, embedded systems console/debug ports, and battery-powered portable instruments with RS-232 connectivity. Design considerations: place the four 0.1 uF charge pump capacitors as close as possible to pins 1-6, and use at least 0.1 uF of supply decoupling on VCC; note the ADM3202 itself lacks the shutdown pin available on the ADM3222 variant. This page synthesizes distributor availability, drop-in alternatives, pinout detail and design notes beyond what a single datasheet provides.
ADM3251EARWZ - 2.5kV Isolated RS-232 Transceiver, 460kbps | ADI
The Analog Devices ADM3251EARWZ is a 2.5 kV rms fully isolated, single-channel RS-232/V.28 transceiver housed in a 20-pin SOIC (7.5 mm body width) wide-body package with integrated isoPower dc-to-dc converter. It operates from a single 5 V supply, supports data rates up to 460 kbps, and delivers 25 kV/µs common-mode transient immunity (CMTI) across the reinforced isolation barrier. An RS-232 transceiver is a line interface IC that converts CMOS/TTL logic levels (0-5 V) into EIA/TIA-232E voltage swings (±5 V to ±15 V) required by legacy serial-port peripherals such as industrial PLCs, point-of-sale terminals, and instrumentation. A fully isolated variant such as the ADM3251EARWZ adds galvanic isolation (here 2.5 kV rms) between the logic-side UART and the cable-side driver/receiver, breaking ground loops and protecting low-voltage MCUs from large common-mode transients and ESD events on the bus. Key specifications include ±15 kV ESD protection (HBM) on the RIN and TOUT pins, integrated charge-pump that requires only four external 0.1 µF capacitors, low-power shutdown mode, and an exposed pad for thermal dissipation. The chip conforms to EIA/TIA-232E and ITU-T V.28 standards, ensuring interoperability with any standard RS-232 host or peripheral. Architecturally, the device combines an iCoupler digital-isolation data path with an isoPower transformer-based DC-DC converter that derives the ±RS-232 supplies internally, eliminating the need for a separate isolated supply on the cable side. This single-chip isolation approach reduces PCB area versus discrete isolator-plus-transceiver designs and simplifies regulatory compliance for medical, industrial, and renewable-energy systems. Typical applications include isolated serial ports in PLCs and motor drives, point-of-sale terminals, medical patient monitors, solar inverter diagnostics, and any RS-232 link requiring robust ground-loop immunity. When designing with this device, allocate the four 0.1 µF charge-pump capacitors close to the V+ and V- pins, and provide a low-ESR decoupling cap on VDD. Verify creepage and clearance on the PCB to maintain the 2.5 kV rms rating. This page synthesizes distributor pricing, drop-in alternatives, and design notes not found in the manufacturer datasheet.
ADM483EARZ-REEL - 5V ±15kV ESD RS-485 Transceiver | Analog Devices
The Analog Devices ADM483EARZ-REEL is a 5 V, slew-rate-limited, half-duplex RS-485/RS-422 transceiver with ±15 kV ESD protection on the bus pins, supplied in an 8-pin SOIC_N (SO-8) package. It delivers 250 kbps data rate, supports up to 32 nodes on a single bus, and draws only 36 µA supply current, making it a low-power solution for industrial multipoint networks. A transceiver in the RS-485/RS-422 category is a differential line driver/receiver IC that converts a single-ended TTL/CMOS logic signal into a balanced differential signal (and vice versa) for transmission over twisted-pair media. RS-485 transceivers sit at the physical layer of multipoint fieldbus architectures and are widely used because they tolerate large common-mode voltages (-7 V to +12 V) and support long cable runs, with the TIA/EIA-485-A standard allowing up to 32 unit loads on a single bus. Key features include ±15 kV HBM ESD protection per IEC 61000-4-2 air-discharge testing on the bus pins, reduced slew rate to minimize EMI, a single 5 V ±10% supply, open-circuit fail-safe receiver design, thermal shutdown, short-circuit protection on the driver outputs, and a half-duplex (1/1) topology where driver and receiver share the same differential pair. The combination of low quiescent current and integrated ESD protection eliminates external TVS arrays in most designs. The device uses a BiCMOS process that integrates the differential driver, differential receiver, charge pump for fail-safe biasing, and ESD clamp structures on a single die. The reduced-slew-rate driver edges contain common-mode harmonics above 2 MHz, simplifying FCC Class B and EN 55022 EMI compliance on cables up to several hundred meters. Typical applications include industrial fieldbus nodes (Modbus, Profibus DP, BACnet), HVAC and building automation networks, motor and motion control links, smart-grid metering, point-of-sale terminals, and any 5 V MCU/UART-to-RS-485 interface requiring robust ESD protection. Designers should note that the ADM483E shares its bus pinout with industry-standard 8-pin half-duplex RS-485 pinouts such as the MAX485, LTC485, and SP485E, enabling direct footprint compatibility when migrating between families for ESD, speed, or supply current optimization.
ADM483JR - 250kbps Low-Power RS-485/RS-422 IC | Analog Devices
The Analog Devices ADM483JR is a 5 V, low-power, slew-rate-limited half-duplex RS-485/RS-422 differential line transceiver rated for data rates up to 250 kbps and housed in an 8-lead SOIC package. Its principal specifications are 120 µA typical operating supply current, 100 nA shutdown supply current, and a -7 V to +12 V bus common-mode range. According to the manufacturer product page and datasheet information, the ADM483 family is designed for low-power multipoint bus communication. An RS-485/RS-422 transceiver is an interface IC that converts logic-level signals into balanced differential signals for reliable communication over longer cables and noisy environments. The ADM483 combines a differential line driver, differential receiver, and driver-enable control in one package. It sits within the hierarchy of interface IC, communications transceiver, differential line driver and receiver, and semiconductor. Its differential signaling improves noise immunity while supporting half-duplex operation on multipoint buses. The device supports EIA RS-485 and RS-422 operation, data rates to 250 kbps, and as many as 32 transceivers on one bus. Slew-rate limiting reduces electromagnetic interference, while high-impedance outputs when disabled or powered off help prevent bus contention. Thermal shutdown and short-circuit protection improve robustness, and the specified operating-temperature range is -40°C to +85°C. The ADM483 architecture supports low-power communication links where a lower data rate is acceptable and reduced switching activity is valuable. Its 120 µA supply current is suitable for low-power instrumentation and control links, while the 100 nA shutdown current supports power-sensitive systems. The 8-lead SOIC format supports conventional surface-mount assembly and easy transition from through-hole prototype boards to compact production designs. Typical uses include industrial control networks, building-automation equipment, instrumentation, low-speed data acquisition, and RS-485/RS-422 links between distributed modules. The device is particularly appropriate where low EMI, low standby consumption, and a moderate 250 kbps data rate are more important than maximum throughput. It is not intended as a substitute for a high-speed RS-485 transceiver when the application requires data rates above its stated limit. Designers should verify termination, biasing, protection, and grounding in the completed bus. Place the transceiver near the connector, provide a continuous ground reference, and use appropriate surge protection when cables leave the board. The 8-pin SOIC footprint allows straightforward layout, but input and output filtering should be evaluated alongside cable length and external transients. This page combines the verified ADM483 family specifications, sourcing links, practical design guidance, and same-package alternatives to help engineers evaluate a 250 kbps low-power RS-485/RS-422 transceiver.
ADM485AN - 5V RS-485/RS-422 Transceiver | Analog Devices
The Analog Devices ADM485AN is a 5 V low-power EIA RS-485 and RS-422 differential line transceiver rated for data rates up to 5 Mbit/s, supplied in an 8-pin PDIP package. It combines one driver and one receiver for bidirectional communication on multipoint bus transmission lines, while low propagation-delay skew helps limit electromagnetic interference. An RS-485 transceiver is an interface IC that converts logic-level digital signals into balanced differential signals for reliable communication over longer cables and noisy industrial environments. Its differential signaling improves noise immunity, enables bidirectional half-duplex buses, and supports multiple nodes when the complete bus is properly terminated and biased. The RS-422 capability provides another balanced-line interface option for point-to-point or multidrop systems. The ADM485 family is specified for both commercial and industrial temperature operation. Key application benefits include a maximum data rate of 5 Mbit/s, low-power 5 V operation, and fast switching. The ADM485AN uses the N-tube PDIP-8 package identified in distributor data, making it suitable for conventional through-hole PCB assembly rather than surface-mount production. In a typical bus design, the transceiver connects a microcontroller UART to an A and B differential pair. The logic-side supply operates from 5 V, and a driver-enable signal controls whether the transmitter or receiver participates in bus communication. Receiver enable may be managed by the same control signal for half-duplex operation, or controlled separately where full-duplex behavior is required. Proper RS-485 implementation depends on more than substituting the IC. The differential pair should be routed as a controlled-impedance cable connection, the transceiver ground reference must be managed carefully, and only the intended endpoint terminations should be installed. External protection may be needed when exposed cables carry electrostatic discharge or surge events. This page combines verified manufacturer and distributor information with practical interface guidance, replacement criteria, and design cautions. The ADM485AN should be selected when an 8-pin through-hole RS-485/RS-422 transceiver is required and its documented 5 Mbit/s capability matches the intended bus length, topology, noise environment, and system timing.
ADM485AQ - 5 V Low-Power RS-485/422 Transceiver | Analog Devices
The Analog Devices ADM485AQ is a 5 V low-power differential line transceiver for balanced RS-485 and RS-422 communication, with data rates up to 5 Mbit/s and an 8-pin ceramic DIP package. It combines one line driver and one receiver for bidirectional multipoint-bus links, industrial control, instrumentation, and data acquisition. An RS-485 transceiver is an interface IC that converts single-ended logic signals into a differential signal and receives differential signals back into logic levels. Its differential signaling improves noise immunity and allows reliable communication over longer cable runs. The ADM485 belongs to the RS-485/RS-422 transceiver family within interface ICs and the broader industrial-communications semiconductor hierarchy. Key verified features include support for both EIA RS-485 and RS-422, operation from a single 5 V supply, extremely fast switching speeds, minimal driver propagation delay, and operation over the commercial and industrial temperature range. The analog.devices.com product description specifically highlights data rates up to 5 Mbit/s and low skew for reduced EMI interference. The AQ package designation identifies the ceramic-DIP ordering option represented by the verified distributor listings. The device is intended for balanced data transmission on multipoint bus transmission lines. Its driver and receiver architecture supports robust two-wire RS-485 networks as well as compatible RS-422 point-to-point or multidrop arrangements, subject to the system-level termination and biasing requirements specified in the manufacturer documentation. The 5 V supply simplifies interfacing with conventional digital logic systems. Typical uses include industrial automation controllers, sensor and instrumentation links, factory data buses, laboratory equipment, and embedded control systems. For a new board, verify the exact ceramic-DIP footprint, pin orientation, supply decoupling, cable termination, and protection requirements before layout release. ADM485AQ is not an automotive-qualified transceiver in the verified data. This page combines the verified ADM485 product-page information, distributor pricing references, package details, and replacement guidance for engineers evaluating an 8-pin ceramic-DIP RS-485 interface. Because the supplied source excerpts do not expose the complete electrical tables, pin names, lifecycle statement, or certified drop-in replacement list, missing values remain explicitly marked as data-needed rather than inferred.
ADM485AR - Low-Power RS-485/RS-422 Transceiver | Analog Devices
The Analog Devices ADM485AR is a 5 V low-power differential line transceiver for high-speed bidirectional communication over multipoint RS-485 and RS-422 bus lines, supplied in an 8-pin SOIC package. The verified source material identifies the device as a one-driver, one-receiver RS-422/RS-485 transceiver; detailed drive rate, receiver sensitivity, common-mode limits, supply-current limits, and package dimensions were not provided in the supplied snippets and remain to be confirmed from the manufacturer datasheet. An RS-485 transceiver is an interface IC that combines a differential line driver, differential receiver, and bidirectional bus-control logic. It converts logic-level signals between a host or controller and a balanced cable, allowing noise rejection and reliable communication over longer distances than an unbalanced interface. In the system hierarchy, the ADM485AR belongs to interface ICs and transceiver ICs, where differential signaling supports multipoint industrial, instrumentation, and automation buses. The verified Analog Devices description confirms that the ADM485 is intended for balanced data transmission and complies with EIA RS-485 and RS-422 standards. Both the driver and receiver can be enabled according to the manufacturer result, which supports controlled bus operation and integration with external direction-control logic. The ADM485AR part number is associated with an 8-SOIC package in the DigiKey result. Applications include industrial control systems, factory automation equipment, instrumentation, building-control networks, and other balanced multipoint communication links. The differential architecture helps reject common-mode noise, while the external bus transceiver architecture makes cable termination, biasing, grounding, and protection important design considerations. For a new board, use the official manufacturer datasheet to verify the complete pinout, electrical limits, recommended circuit, and package dimensions before layout. This page distinguishes verified facts from parameters that require confirmation and does not infer unprovided ratings or timing values. The useful comparison point is not merely the RS-485 label: check driver and receiver enable behavior, bus direction control, fail-safe behavior, ESD protection, common-mode range, propagation delay, and package pin compatibility. Those details determine whether another part is a true drop-in replacement.
ADM485ARZ - 5V 5Mbps Half-Duplex RS-485/RS-422 Transceiver | Analog Devices (Tape & Reel)
The Analog Devices ADM485ARZ is a 5 V low-power EIA RS-485/RS-422 differential line transceiver in an 8-pin SOIC (SO-8) package, supporting half-duplex communication at data rates up to 5 Mbps. It provides one driver and one receiver per channel, with dedicated differential line driver outputs and receiver inputs that comply with both EIA RS-485 and RS-422 standards for balanced multipoint bus transmission. An RS-485 transceiver is a physical-layer interface IC that converts a single-ended TTL/CMOS logic signal into a differential signal transmitted across a twisted-pair cable, then converts the differential signal back into a single-ended logic signal at the receiver. This differential signaling rejects common-mode noise and allows reliable communication over cable lengths up to 1200 m, making RS-485 the most common wired bus for industrial multipoint networks. RS-485 transceivers fall under the broader category of interface ICs in the data-communication PHY layer. Key features of the ADM485ARZ include 5 Mbps signaling rate, low power consumption suitable for 5 V single-supply operation, independent driver/receiver enable pins, thermal-shutdown protection, current limiting on the driver outputs, and receiver fail-safe for an open, shorted, or idle bus. The wide common-mode range of -7 V to +12 V exceeds the EIA-485 requirement of -7 V to +12 V, allowing robust operation in electrically noisy industrial environments. Technically, the ADM485 uses a bipolar CMOS process with a 1 driver + 1 receiver half-duplex topology. Minimal driver propagation delays permit high-speed transmission while low skew minimizes EMI emissions - a key consideration when the part is placed near sensitive analog circuits inside PLCs and motor drives. Designed for industrial multipoint bus transmission, telematics, and embedded networking, the ADM485ARZ fits any application where multiple nodes must communicate reliably over a single twisted pair: factory-floor PLC links, building-automation networks, security and surveillance panels, and HVAC fieldbus nodes. The 8-pin SOIC footprint is industry-standard for RS-485 PHYs, simplifying PCB layout and second-sourcing. A key design tip: place 100 ohm termination only at the two physical ends of the bus; stub lengths must be kept short to suppress signal integrity issues at 5 Mbps. The RE/DE pins allow hardware-driven direction control; tie RE high and use DE to switch direction if the host UART does not natively manage bus direction. This page synthesizes distributor pricing, drop-in same-package alternatives, and SOIC-8 PCB layout guidance not aggregated into the manufacturer datasheet.
ADM485ARZ-REEL - 5V 5Mbps Half-Duplex RS-485/RS-422 Transceiver | Analog Devices
The Analog Devices ADM485ARZ-REEL is a 5 V low-power EIA RS-485/RS-422 differential line transceiver in an 8-pin SOIC (SO-8) package, supporting half-duplex communication at data rates up to 5 Mbps. It provides one driver and one receiver per channel, with dedicated differential line driver outputs and receiver inputs that comply with both EIA RS-485 and RS-422 standards for balanced multipoint bus transmission. An RS-485 transceiver is a physical-layer interface IC that converts a single-ended TTL/CMOS logic signal into a differential signal transmitted across a twisted-pair cable, then converts the differential signal back into a single-ended logic signal at the receiver. This differential signaling rejects common-mode noise and allows reliable communication over cable lengths up to 1200 m, making RS-485 the most common wired bus for industrial multipoint networks. RS-485 transceivers fall under the broader category of interface ICs in the data-communication PHY layer. Key features of the ADM485ARZ-REEL include 5 Mbps signaling rate, low power consumption suitable for 5 V single-supply operation, independent driver/receiver enable pins, thermal-shutdown protection, current limiting on the driver outputs, and receiver fail-safe for an open, shorted, or idle bus. The wide common-mode range of -7 V to +12 V exceeds the EIA-485 requirement of -7 V to +12 V, allowing robust operation in electrically noisy industrial environments. Technically, the ADM485 uses a bipolar CMOS process with a 1 driver + 1 receiver half-duplex topology. Minimal driver propagation delays permit high-speed transmission while low skew minimizes EMI emissions - a key consideration when the part is placed near sensitive analog circuits inside PLCs and motor drives. Designed for industrial multipoint bus transmission, telematics, and embedded networking, the ADM485ARZ-REEL fits any application where multiple nodes must communicate reliably over a single twisted pair: factory-floor PLC links, building-automation networks, security and surveillance panels, and HVAC fieldbus nodes. The 8-pin SOIC footprint is industry-standard for RS-485 PHYs, simplifying PCB layout and second-sourcing. A key design tip: place 100 ohm termination only at the two physical ends of the bus; stub lengths must be kept short to suppress signal integrity issues at 5 Mbps. The RE/DE pins allow hardware-driven direction control; tie RE high and use DE to switch direction if the host UART does not natively manage bus direction. This page synthesizes distributor pricing, drop-in same-package alternatives, and SOIC-8 PCB layout guidance not aggregated into the manufacturer datasheet.