Interface ICs
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Products (3,400+)
ADM238LAN - 120 kbps 4/4 RS-232 Transceiver | Analog Devices
The Analog Devices ADM238LAN is a 4/4 full-duplex RS-232 transceiver with four drivers and four receivers, a 120 kB/s data rate, and a single 5 V supply in a 24-pin PDIP package. Its integrated DC-DC converters generate the bipolar voltage required by RS-232 drivers from one 5 V input, while four external 1 uF capacitors support the charge-pump circuitry. According to the manufacturer product information, the device provides a 9 V output swing with a 5 V supply, low-power shutdown, receiver operation in shutdown, and receiver input levels extending to 30 V. An RS-232 transceiver is an interface IC that combines line drivers and receivers for serial data links using the EIA-232-E and V.28 standards. It belongs to the broader interface IC hierarchy and converts between low-voltage digital logic levels and the bipolar voltage swings used on an RS-232 cable. The ADM238LAN is especially useful when a system has only a 5 V supply but requires full-duplex RS-232 connectivity rather than single-direction or unbalanced logic-level signaling. The four drivers provide transmit-side level shifting, while the four receivers support independent receive channels. A 120 kB/s maximum data rate suits industrial equipment, data acquisition systems, service interfaces, embedded controllers, and legacy peripheral connections. The single-supply architecture reduces external power complexity compared with traditional RS-232 designs that require positive and negative supplies, while the onboard converters preserve the bipolar signaling required at the cable interface. The ADM238LAN family meets EIA-232-E and V.28 requirements and supports a data rate up to 120 kB/s. Its advertised 9 V output swing is adequate for reliable RS-232 signaling in noise-prone industrial environments, and the 30 V receiver input rating provides additional protection against excessive interface voltage. The integrated shutdown function can reduce consumption when the interface is not needed, although applications must account for the device-specific shutdown and receiver-enable timing shown in the manufacturer datasheet. Typical applications include multi-port RS-232 connections in industrial controllers, laboratory instrumentation, point-of-sale equipment, telecommunications equipment, and embedded systems requiring four transmit and four receive channels. Because the device is a 4/4 transceiver, it supports full-duplex links and can handle bidirectional traffic without separate driver and receiver packages. The 24-pin PDIP package also facilitates prototyping and through-hole service access where fine-pitch surface-mount assembly is undesirable. The principal design consideration is the external charge-pump capacitor network. Use the required 1 uF capacitors with close PCB placement, observe the stated polarity, and route the high-voltage driver outputs away from sensitive logic and clock lines. Confirm the transceiver’s shutdown behavior in the system power sequence, especially when receivers must remain active while drivers are disabled. This page combines the manufacturer’s ADM238L product information with interface-family specifications and practical selection guidance. It distinguishes pin-compatible family options from related devices with different driver or receiver counts and highlights the ADM238LAN’s 120 kB/s, four-channel, single-supply architecture for engineers designing robust RS-232 links.
ADM238LAQ - 4/4 RS-232 Transceiver, 120 kB/s | Analog Devices
The Analog Devices ADM238LAQ is a four-driver, four-receiver RS-232 transceiver designed for single 5 V operation in a 24-lead ceramic DIP package. It supports data rates up to 120 kB/s, provides on-board DC-DC converters, and uses 1 uF capacitors for charge-pump operation. The device meets EIA-232-E and V.28 specifications while delivering a 9 V output swing from a 5 V supply. These characteristics make the ADM238LAQ suitable for industrial control, instrumentation, data acquisition, and legacy serial-port interfaces that require four RS-232 channels without external transmit voltage conversion. An RS-232 transceiver is an interface integrated circuit that combines line drivers and line receivers for bidirectional or unidirectional serial communication. It belongs to the interface IC hierarchy, converting between low-voltage CMOS logic levels and the positive and negative voltage levels used by RS-232 links. The ADM238LAQ provides four driver channels and four receiver channels, allowing one package to support several data paths or to provide transmit-only and receive-only groups on the same board. Key features include a single 5 V power supply, operation to 120 kB/s, integrated DC-DC converters, a 9 V output swing, and low-power shutdown with receivers remaining active. The receiver input withstands voltages up to 30 V according to the product information. A 1 uF charge-pump capacitor requirement and integrated conversion circuitry reduce the external component count compared with discrete RS-232 implementations. The 24-CDIP package is 0.300 inches wide, or 7.62 mm. Technically, the device integrates four CMOS RS-232 drivers, four receivers, and the supporting charge-pump converters needed to generate bipolar output levels from one 5 V rail. This architecture suits equipment with multiple asynchronous serial ports, including test systems, industrial controllers, service interfaces, and data-logging equipment. Shutdown behavior is especially useful for systems where transmitters must stop driving while incoming data must still be monitored. Typical applications include four-channel RS-232 instrument control, factory automation equipment with multiple serial links, legacy peripheral connections, and embedded control systems that retain an RS-232 interface. The 120 kB/s rate is substantially faster than the original 20 kB/s RS-232 target, although actual application throughput remains constrained by protocol overhead and cable characteristics. A key design consideration is the ceramic DIP footprint: unlike a surface-mount alternative, it requires through-hole insertion and adequate spacing for assembly and service. Designers should preserve the pinout assigned to the 24-CDIP variant, validate signal levels at the connector, and confirm that the selected charge-pump capacitors meet the manufacturer's stability and temperature requirements. This page consolidates the confirmed electrical characteristics, package information, interface use cases, and design considerations for engineers evaluating the ADM238LAQ as a four-channel RS-232 interface solution.
ADM238LJN - 4/4 120kbps RS-232 IC | Analog Devices
Analog Devices ADM238LJN is a 4/4 full-duplex RS-232 line-driver and receiver interface IC with a 120 kB/s data rate, single 5 V power supply, and 24-pin PDIP package. It provides four transmit drivers and four receive channels, producing approximately 9 V output swing from the 5 V supply through on-board DC-DC converters. The device targets EIA-232-E and V.28 serial interfaces where a ±12 V supply is unavailable. An RS-232 transceiver is an interface IC that combines differential digital signaling levels with a single logic-level supply. In the broader electronics hierarchy, the ADM238LJN belongs to the interface IC class, specifically the RS-232 transceiver family. Its integrated DC-DC converter generates the higher voltage needed for RS-232 driver outputs while the receiver circuitry restores serial data to compatible logic levels. The ADM238LJN's principal features include a 120 kB/s data rate, 9 V output swing, 1 F charge-pump capacitors, a low-power shutdown function, and receivers that remain active during shutdown. A 1 A receiver output capability supports the stated receiver-load condition, while the 30 V receiver-input rating provides additional tolerance for exposed serial lines. These characteristics simplify legacy and industrial RS-232 connections without requiring a separate negative supply rail. The device is intended for EIA-232-E and V.28 communications interfaces, including industrial equipment, instrumentation, data-acquisition systems, service consoles, and legacy peripheral connections. Four full-duplex channels allow one connector to carry four data paths in each direction. Its 120 kB/s rate is suitable for conventional serial control and communication links rather than high-speed differential or Ethernet protocols. PCB design must preserve the RS-232 interface requirement for a single 5 V supply even though driver outputs swing to approximately 9 V. Place the specified 1 F capacitors close to the charge-pump pins, route driver outputs away from sensitive receiver and logic traces, and maintain the 24-pin PDIP footprint without changing the land pattern. Review the receiver input rating before connecting externally accessible lines. The ADM238LJN is listed as obsolete, so availability may be limited. This page synthesizes the device specifications, sourcing guidance, drop-in comparison, application guidance, and design considerations that engineers need when supporting an installed ADM238LJN design.
ADM238LJR - 4/4 5V RS-232 Transceiver | Analog Devices
The Analog Devices ADM238LJR is a four-driver, four-receiver RS-232 transceiver powered by a single 5 V supply and packaged in a 24-pin SOIC. It supports data rates up to 120 kB/s, provides approximately 9 V driver output swing from the 5 V supply, and operates with 1 uF capacitors according to the manufacturer feature summary. The device is designed for EIA-232-E and V.28 interfaces where traditional positive and negative ±12 V supplies are unavailable. An RS-232 transceiver is an interface IC that combines differential signaling drivers and receivers for point-to-point serial communication. The ADM238LJR belongs to the RS-232 interface transceiver category, where the transmitter converts logic-level signals into RS-232-compatible levels and the receiver converts those levels back into CMOS-compatible signals. Its four independent channels support bidirectional data paths in equipment requiring more than one serial connection. The integrated DC-DC converter allows the IC to generate the positive and negative voltages needed by RS-232 drivers from one 5 V supply. This reduces external power-supply complexity while preserving the required bipolar signaling levels. The manufacturer lists approximately 9 V output swing, low-power shutdown, receivers that remain active during shutdown, and 1 uF external capacitors as key operating characteristics. The ADM2xx family supports EIA-232-E and V.28 communications interfaces, and the driver architecture is designed for data transmission beyond the formal EIA-232-E rate. The ADM238LJR combines four transmit channels and four receive channels in one device, making it suitable for console links, instrumentation, industrial control equipment, and legacy peripheral connectivity. A single IC can serve multiple RS-232 ports while centralizing supply and decoupling requirements. Common application areas include industrial controllers, test and measurement equipment, point-of-sale terminals, security systems, and embedded systems that retain an RS-232 interface. The 24-pin SOIC package is suitable for conventional surface-mount PCB assembly. Designers should maintain the required charge-pump capacitor connections and place bypass and charge-pump capacitors close to their associated pins according to the manufacturer datasheet layout guidance. The principal design trade-off is that its four-driver, four-receiver arrangement is more specialized than single-channel transceivers. It provides higher channel density and simpler 5 V-only power design, but applications needing only one RS-232 link may not use every channel. Input protection, cable length, grounding, and data-rate limits must be evaluated against the EIA-232-E and V.28 interface requirements. This page organizes the ADM238LJR specifications, pin-compatible family alternatives, application guidance, and comparison criteria to support component selection and PCB planning. It also identifies the documentation and electrical details that require confirmation in the Analog Devices data sheet before production release.
ADM239LAN - 5V 3/5 RS-232 Transceiver | Analog Devices
The Analog Devices ADM239LAN is a 5 V powered CMOS RS-232 transceiver combining three drivers and five receivers in a 24-pin PDIP package. It supports data rates up to 120 kB/s, meets the EIA-232-E and V.28 specifications cited in the manufacturer documentation, and provides an on-board DC-DC converter that produces a 9 V output swing from the single 5 V supply. These characteristics make the ADM239LAN useful for industrial equipment, data acquisition systems, and service interfaces where a compact multichannel RS-232 solution is required. An RS-232 transceiver is an interface IC that translates between complementary logic-level signals and the voltage levels defined by the EIA-232 standard. A transmitter converts logic data into RS-232 line signals, while a receiver converts incoming line signals back into CMOS-compatible data. In the broader semiconductor hierarchy, the ADM239LAN is a line driver and receiver, then an interface transceiver, and ultimately an interface IC. Its three transmitters permit three outgoing data channels, while its five receivers provide five incoming channels. The principal features of the ADM239LAN are its single 5 V supply operation, 120 kB/s data rate, integrated DC-DC conversion, approximately 9 V output swing, low-power shutdown capability, and receiver operation during shutdown. The integrated DC-DC converter eliminates the need for a separate external RS-232 charge-pump supply in applications where the 5 V system rail is already available. The shutdown function can reduce consumption when the interface is not actively communicating. The verified manufacturer-related search information identifies the ADM239LAN as a 5 V powered CMOS RS-232 driver and receiver device and confirms the 3/5 channel arrangement through the available comparison result. The listed package is 24-pin PDIP, which provides a through-hole footprint with widely spaced leads for easier inspection and assembly. Detailed pin names, receiver input thresholds, supply-current limits, and operating-temperature limits were not included in the supplied verification data and therefore are not inferred here. Typical uses include multiport industrial controller connections, laboratory instrument control, point-of-sale equipment, and embedded systems that need several RS-232 channels sharing one logic-level supply. The integrated DC-DC approach is particularly useful where board space is constrained. System designers should still account for the higher line-side voltage, maintain appropriate RS-232 grounding, and verify transient protection for cables connected to external equipment. This page combines the verified ADM239LAN specifications, package information, purchasing-source links, interface application guidance, and a conservative drop-in replacement assessment. It distinguishes electrically similar family members from alternatives that require a different package or an engineering review, helping engineers avoid assuming that a similar RS-232 device is pin-compatible.
ADM239LAR - 5V RS-232 Interface with DC-DC | Analog Devices
Analog Devices ADM239LAR is a 5 V powered CMOS RS-232 drivers and receivers IC with 3 driver channels, 5 receiver channels, 120 kB/s data rate, and an on-board DC-DC converter. It is packaged in a 24-lead SOIC measuring 0.295 inch, or 7.50 mm, wide. The device also provides low-power shutdown, 1 μF charge-pump capacitors, 9 V output swing from a 5 V supply, and receiver inputs rated to 30 V. An RS-232 transceiver is an interface IC that converts logic-level digital signals into differential, bipolar RS-232 signals and converts received RS-232 signals back into CMOS logic levels. The RS-232 transceiver belongs to the serial-interface hierarchy, which includes interface ICs, line drivers and receivers, communication transceivers, and broader data-communication semiconductors. It is designed for equipment-to-equipment communication over cables where voltage levels exceed ordinary CMOS input and output ranges. The ADM239LAR's principal advantages include operation from one 5 V supply, compliance with EIA-232-E and V.28 specifications, a maximum data rate of 120 kB/s, and an integrated DC-DC converter that generates the elevated RS-232 output voltage. Its 9 V output swing provides useful noise margin over the approximately 2 V RS-232 transition region. Low-power shutdown reduces consumption when the interface is not required, while the receiver remains active during shutdown. The integrated charge-pump circuit develops the bipolar transmitter voltage required by RS-232 from the single 5 V supply. The manufacturer datasheet specifies small 1 μF capacitors for the charge-pump circuit. Three transmitters provide enough channels for common control, status, and data paths, while five receivers allow the opposite direction of the link to carry several signals. The CMOS implementation supports integration into systems that already operate from 5 V rather than requiring the additional negative supply traditionally associated with RS-232. Typical uses include industrial control links, point-of-sale equipment, test and measurement instruments, data-acquisition systems, and embedded equipment interfaces. In each case, the ADM239LAR can translate between a 5 V controller and an external RS-232 port. The 120 kB/s rate is suitable for moderate-speed serial links, while the integrated DC-DC converter simplifies implementation where only a positive 5 V rail is available. The main design consideration is external line protection. Although the receiver input is specified to 30 V, exposed RS-232 ports may encounter larger transients or incorrect polarity. Appropriate surge and ESD protection should be added where the cable environment requires it, and unused driver outputs should be handled according to the manufacturer recommendations. This page consolidates the verified ADM239LAR specifications, sourcing information, procurement details, interface-application guidance, and data gaps that are not resolved by the supplied manufacturer and distributor records.
ADM239LJR - 120 kB/s 5V RS-232 Interface | Analog Devices
The Analog Devices ADM239LJR is a 5 V powered CMOS RS-232 driver and receiver interface IC with three transmitters, five receivers, a 120 kB/s data rate, on-board DC-DC converters, and a 24-pin SOIC wide package. It supports low-power shutdown while maintaining active receivers, produces a 9 V output swing from a 5 V supply, accepts receiver inputs up to 30 V, and uses small 1 µF capacitors. An RS-232 interface transceiver is a physical-layer integrated circuit that converts logic-level signals into RS-232-compatible voltage levels and converts received RS-232 signals back into CMOS-compatible levels. The ADM239LJR belongs to the line-driver and line-receiver hierarchy, which falls within interface ICs and broader digital and analog semiconductors. Its integrated charge-pump DC-DC converters provide the voltage needed for bipolar RS-232 output drive without requiring a separate 12 V supply. Key features include a single 5 V power supply, compliance with the EIA-232-E and V.28 specifications cited in the retrieved datasheet listing, a 120 kB/s data rate, and three drivers with five receivers. The on-board converters produce a 9 V output swing with a 5 V supply. Low-power shutdown reduces consumption when the interface is not needed, while 1 A receivers remain active during shutdown. The receiver input withstands voltages up to 30 V. The device combines a multichannel RS-232 line interface with internal power-conversion circuitry, reducing the number of external supply rails required by the board. Its CMOS implementation and specified 9 V swing target systems that must bridge short-distance, point-to-point serial links through single-ended RS-232. The combination of three drivers, five receivers, and shutdown behavior supports compact communications equipment where multiple serial lines and power conservation are important. Typical uses include industrial serial-port adapters, data-acquisition equipment, point-of-sale terminals, embedded control consoles, and instrumentation requiring RS-232 connectivity from a 5 V system. A transmitter converts outgoing UART or peripheral logic into RS-232 levels, while the five receivers allow multiple incoming lines to be monitored. The 120 kB/s rate is suitable for many legacy serial-control and data-transfer tasks when paired with a compatible UART and protocol. Designers should verify the external charge-pump capacitor values, UART signal levels, connector protection, and shutdown-state behavior against the Analog Devices datasheet before layout release. Keep RS-232 traces away from sensitive analog and high-speed digital paths, provide the specified bypass capacitance at the supply pins, and account for the 30 V receiver input limit when exposed to industrial wiring or ESD events. This page consolidates the verified ADM239LJR features, current distributor pricing references, package information, application guidance, and a transparent assessment of available drop-in alternatives. It also distinguishes documented device capabilities from fields not supplied by the retrieved sources, preventing unverified electrical claims from being presented as manufacturer specifications.
ADM242AN - 200 kB/s 5 V RS-232 Transceiver | Analog Devices
The Analog Devices ADM242AN is a 200 kB/s, 5 V RS-232 line transceiver with two drivers and two receivers in an 18-pin PDIP package. It uses an on-chip charge pump with 0.1 µF external capacitors to develop bipolar RS-232 levels, provides a 9 V output swing from a 5 V supply, and accepts receiver inputs up to 30 V. An RS-232 transceiver is an interface IC that combines voltage conversion, line drivers, and line receivers between CMOS-compatible logic and a differential-style, bipolar serial communications port. In the hierarchy of electronics, the ADM242AN belongs to interface ICs and data-interface converters, using charge-pump-assisted level shifting rather than an external negative power supply. The ADM242 family is designed for high-speed RS-232 links operating up to 200 kB/s from a single 5 V supply. Its two-driver, two-receiver arrangement supports full-duplex point-to-point communication, while the 9 V output swing and 30 V receiver input range provide useful margin for standard RS-232 implementations. The 0.1 µF charge-pump capacitors keep the external power-supply requirement compact. The device is identified as an EIA-232-E and V.28-compatible RS-232 interface in the verified manufacturer and distributor material. Its CMOS-based implementation avoids a separate external negative supply and integrates the charge-pump circuitry required to generate bipolar line-driver levels. The 18-pin PDIP package is a through-hole option for prototypes, legacy systems, and designs that prioritize easy inspection and hand soldering. Typical uses include serial adapters, industrial equipment links, test and measurement instruments, and legacy computer peripherals that need two RS-232 channels from one interface IC. The 200 kB/s rate is higher than many slower RS-232 transceivers, while the five-volt supply simplifies integration with digital logic. Designers should verify the ADM242AN package pinout and line-driver loading before layout. Keep charge-pump capacitor connections short, observe the required bypass and decoupling arrangement, and use protection appropriate to the cable environment because ESD and surge voltages on an external RS-232 port can exceed logic-level expectations. This product page synthesizes verified manufacturer and distributor information, comparison-oriented interface details, and practical implementation guidance for engineers evaluating the ADM242AN as a dual-driver, dual-receiver RS-232 solution.
ADM242ANZ - 200 kbps 2/2 RS-232 IC | Analog Devices
Analog Devices ADM242ANZ is a high-speed RS-232 line-driver and receiver IC featuring two drivers, two receivers, and a maximum signaling rate of 200 kB/s. It operates from a single 5 V supply in an 18-pin PDIP package and uses an on-chip charge pump with 0.1 µF external capacitors to generate the bipolar voltage levels required by RS-232 links. An RS-232 transceiver is an interface IC that combines digital line drivers and receivers for serial communication over unbalanced point-to-point connections. The driver converts TTL or CMOS logic signals into RS-232 bipolar levels, while the receiver converts bipolar line signals back into logic-level voltages. The ADM242ANZ belongs to the broader interface IC hierarchy, where it bridges modern digital logic and legacy serial equipment. The ADM242ANZ includes two drivers and two receivers, allowing two communication channels to be implemented with one device. Its 200 kB/s signaling rate supports higher-throughput serial links than slower RS-232 transceivers while retaining the broad compatibility of the RS-232 standard. The single 5 V supply simplifies system power design, and the charge-pump architecture avoids a separate negative supply for bipolar driver output. Two 0.1 µF charge-pump capacitors are required to operate the integrated voltage converter. According to the Analog Devices ADM242 family datasheet, the device meets EIA-232-E and V.28 specifications. This makes the interface appropriate for equipment requiring standardized RS-232 electrical behavior, including instrumentation, industrial control, data acquisition, and legacy peripheral connections. Typical uses include two-channel RS-232 links in test equipment, factory automation controllers, barcode and labeling systems, point-of-sale equipment, and embedded serial-port systems. The two-channel arrangement is particularly useful when a system needs both transmit and receive paths on each of two RS-232 ports while keeping the external component count low. When laying out a design, place the charge-pump capacitors close to their designated pins and provide a clean 5 V supply with local high-frequency bypass. RS-232 is an unbalanced interface, so cable routing and grounding can affect noise immunity. Confirm that the selected connector, cable, and remote equipment use compatible RS-232 signal levels before deployment. This page combines the verified ADM242ANZ specifications, package information, sourcing guidance, and practical interface-design considerations. It also distinguishes the available pin-compatible family option from broader functional equivalents, helping engineers assess replacement decisions without changing the PCB footprint.
ADM242AR - 200 kbps 2/2 RS-232 Transceiver | Analog Devices
The Analog Devices ADM242AR is a 200 kbps, 5 V CMOS RS-232 interface IC with two drivers and two receivers in an 18-pin SOIC package. It accepts a 4.5 V to 5.5 V supply and uses an efficient on-chip charge pump with 0.1 µF external capacitors to produce the bipolar voltage levels required by RS-232. The 2/2 transceiver arrangement supports two transmit channels and two receive channels in one device. An RS-232 transceiver is an interface IC that converts low-voltage CMOS logic signals into voltage levels suitable for RS-232 links, while receivers convert the bipolar line levels back into CMOS-compatible signals. It belongs to the RS-232 transceiver hierarchy, alongside line drivers and line receivers, and is used in the broader category of interface ICs for point-to-point serial communication equipment. Key verified features include a maximum data rate of 200 kbps, operation from a single 5 V supply, two integrated drivers, two integrated receivers, and external charge-pump capacitors rated at 0.1 µF. The SOIC-18 package supports surface-mount assembly. The verified operating-temperature range is -40°C to +85°C, making the device suitable for industrial-temperature equipment when other system requirements are satisfied. The on-chip charge pump avoids a discrete negative-voltage supply and supports a compact interface implementation. In an RS-232 application, the CMOS-side pins connect to a UART or another serial controller, while driver outputs connect through the cable or board-level interface and receiver inputs accept the remote signal. The supply and charge-pump capacitor network must be placed according to the manufacturer datasheet because their stability and layout affect communication reliability. Typical uses include industrial serial adapters, instrumentation, data-acquisition equipment, embedded serial links, and control systems requiring more than one RS-232 direction. The ADM242AR is appropriate when two transmit and two receive channels are needed in one 5 V interface. Because its data rate is specified up to 200 kbps, cable length, termination, grounding, and connector requirements should be evaluated together with the UART baud rate. For new layouts, reserve all 18 package pins, connect the charge-pump capacitors as specified by Analog Devices, and provide a local bypass capacitor near the supply pins. The verified SOIC-18 footprint should be checked against the selected board and the exact ADM242AR pinout. Designers should confirm RS-232 electrical requirements, shutdown or enable behavior, and system-level ground strategy before release. This page combines the verified Analog Devices product description, distributor package and price references, and cross-reference results to help engineers evaluate the ADM242AR. It emphasizes verified facts and flags details that were not available in the supplied data rather than estimating missing electrical values.
ADM2482EBRWZ - 2.5kV Isolated RS-485/RS-422 Transceiver | ADI
The Analog Devices ADM2482EBRWZ is a 2.5 kV rms isolated RS-485/RS-422 transceiver with integrated transformer driver, ±15 kV ESD protection, and 16 Mbps data rate, packaged in a 16-lead wide-body SOIC (SOIC-W). It combines a three-channel digital isolator, an RS-485/RS-422 differential line driver, and a differential line receiver on a single die, eliminating the need for an external DC/DC isolation supply by deriving bus-side power from an external center-tapped transformer. What is an isolated transceiver? An isolated transceiver is a type of interface IC that combines a galvanic isolation barrier with a standard serial communication protocol transceiver. It belongs to the broader family of digital isolators -> interface ICs -> wired communication transceivers -> semiconductors. The galvanic isolation (typically 2.5 kV rms or higher) protects low-voltage logic and host circuitry from large ground-potential differences, surge events, and fault voltages on long industrial bus segments. Isolated transceivers are essential when RS-485 cabling leaves the local equipment chassis and traverses factory floors, process plants, or outdoor installations. Key features of the ADM2482EBRWZ include a 25 kV/µs common-mode transient immunity (CMTI), 16 Mbps maximum data rate (suitable for PROFIBUS and high-speed half/full-duplex RS-485), configurable half-duplex or full-duplex operation, and a 3.3 V/5 V logic-side supply with a 3.3 V isolated bus-side supply generated internally from pins D1/D2 driving an external transformer. The wide-body SOIC package provides the required 8 mm creepage clearance for 2.5 kV rms reinforced isolation per IEC 61850 / IEC 61010-1 system standards. Hot-swap glitch rejection on the DE and RE pins prevents data corruption during board insertion into a live backplane. The transceiver uses an iCoupler-style transformer-driven isolation architecture: logic-side data crosses the isolation barrier through ADI's chip-scale micro-transformers, and bus-side power is rectified from a secondary winding. This architecture eliminates optocoupler LED aging concerns and provides stable timing across the industrial temperature range. The device operates over -40 °C to +85 °C ambient and meets ±15 kV ESD per IEC 61000-4-2 air-gap discharge on the bus pins. Typical applications include isolated RS-485 nodes in industrial fieldbus networks (PROFIBUS DP, Modbus RTU), smart-grid metering and substation communications, building automation (BACnet, KNX), solar inverter CAN/RS-485 links, and any system requiring robust high-voltage isolation between a controller and a remote bus segment. Half-duplex mode uses pins Y/Z/A/B; full-duplex mode uses dedicated TX and RX differential pairs. When designing with the ADM2482EBRWZ, pay attention to the center-tapped transformer selection: a 1:1.33 to 1:1.5 turns ratio with adequate isolation rating is recommended. Place the Schottky diodes and smoothing capacitor close to pins D1/D2 for clean bus-side power, and use 120 Ω termination at both ends of the RS-485 bus. The wide-body SOIC footprint requires an 8 mm minimum clearance under the package for 2.5 kV rms reinforced isolation. This page synthesizes distributor pricing, drop-in alternatives from the ADM2482E/ADM2487E family, and practical design notes not found in the manufacturer datasheet alone.
ADM2485BRWZ - Isolated RS-485 Transceiver | Analog Devices
The ADM2485BRWZ is a high-speed, galvanically isolated RS-485/RS-422 transceiver with an integrated transformer driver, manufactured by Analog Devices. It is designed for bidirectional data communication on multipoint bus transmission lines and complies with ANSI/TIA/EIA RS-485-A-98 and ISO 8482:1987 (E). The device integrates a 3-channel digital isolator, a three-state differential line driver, and a differential input receiver, all in a 16-pin SOIC-W (wide body) package. It operates from a single 5V supply on the logic side and a 5V supply on the bus side, providing 2.5 kVrms isolation. The ADM2485BRWZ supports data rates up to 16 Mbps and features a high common-mode transient immunity (CMTI) of 25 kV/µs, making it suitable for industrial and harsh environments. A digital isolator is a component that provides galvanic isolation between two circuits while allowing digital signals to pass. It uses capacitive or magnetic coupling to transfer data across an isolation barrier, preventing ground loops and protecting sensitive electronics from high voltages. The ADM2485BRWZ uses Analog Devices' iCoupler technology, which combines high-speed CMOS and monolithic transformer technology to achieve reliable isolation. This places it in the category of interface ICs, specifically isolated RS-485 transceivers, which are essential in industrial automation, motor control, and building automation systems where noise immunity and safety are critical. Key features of the ADM2485BRWZ include a 16 Mbps data rate, 2.5 kVrms isolation voltage, 25 kV/µs CMTI, and an integrated transformer driver that simplifies the design of the isolated DC-DC converter. The device also has thermal shutdown protection and a wide operating temperature range of -40°C to +85°C. The receiver has a 1/8 unit load, allowing up to 256 nodes on the bus. The driver maintains a high output current of ±60 mA, ensuring robust signal integrity over long cable runs. The ADM2485BRWZ is designed for use in industrial networks, such as PROFIBUS, Modbus, and BACnet, where reliable data transmission over long distances is required. Its integrated transformer driver reduces external component count, saving board space and simplifying the power supply design. The device is available in a 16-pin SOIC-W package, which is suitable for surface-mount assembly and is RoHS compliant. When designing with the ADM2485BRWZ, it is important to ensure proper PCB layout to maintain isolation integrity. The isolation barrier should be kept clear of copper traces, and the transformer driver should be connected to a suitable external transformer and rectifier circuit to generate the isolated bus-side supply. Additionally, termination resistors should be placed at both ends of the bus to minimize reflections and ensure signal integrity.
ADM2485BRWZ-RL7 - Isolated RS-485 Transceiver | Analog Devices
The ADM2485BRWZ-RL7 is a high-speed, galvanically isolated RS-485/RS-422 transceiver with an integrated transformer driver, manufactured by Analog Devices. It combines a 3-channel digital isolator, a three-state differential line driver, and a differential input receiver into a single 16-pin SOIC-W package. The device supports data rates up to 16 Mbps and provides 2500 Vrms isolation, making it suitable for industrial networks, motor control, and building automation. A digital isolator is a component that provides electrical isolation between two circuits while allowing digital signals to pass. In the context of RS-485 communication, isolation protects against ground loops, common-mode voltage differences, and transient surges, ensuring reliable data transmission in harsh industrial environments. The ADM2485 uses Analog Devices' iCoupler technology, which uses chip-scale transformers instead of optocouplers, offering higher speed, lower power, and better reliability. Key features include a 3-channel isolator (one driver, one receiver, one data direction control), an integrated transformer driver that provides isolated power with an external transformer, and compliance with ANSI/TIA/EIA RS-485-A-98 and ISO 8482:1987(E). The device operates from a single 5V supply on the logic side and a 5V supply on the bus side, with a common-mode voltage range of -7V to +12V. It features thermal shutdown protection and a wide operating temperature range of -40°C to +85°C. The ADM2485 employs iCoupler technology, which uses chip-scale transformers to transmit data across an isolation barrier, providing superior performance compared to optocouplers. The integrated transformer driver generates a square wave that drives an external transformer to create an isolated power supply, eliminating the need for a separate DC-DC converter. This architecture reduces component count and board space while maintaining high isolation and data integrity. Typical applications include industrial fieldbus networks, PROFIBUS, Modbus, motor control, and building automation systems. The device is ideal for applications requiring robust communication over long distances in electrically noisy environments. Its high CMTI (25 kV/µs) ensures reliable operation in the presence of fast transients. When designing with the ADM2485, ensure proper PCB layout to maintain isolation creepage and clearance distances. Place the external transformer close to the device and use appropriate decoupling capacitors on both supply rails. The integrated transformer driver requires an external transformer with a 1:1 turns ratio and a center-tapped primary, as specified in the datasheet.
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.