RS-485/RS-422
Productos (16)
ADM2483BRWZ - Isolated RS-485 Transceiver | Analog Devices
The ADM2483BRWZ from Analog Devices is an integrated, galvanically isolated RS-485/RS-422 transceiver designed for bidirectional data communication on balanced, multipoint bus transmission lines. It combines a 3-channel digital isolator, a three-state differential line driver, and a differential input receiver into a single 16-pin SOIC package. The device complies with ANSI EIA/TIA-485-A and ISO 8482:1987 (E) standards, ensuring interoperability in industrial networks. With a data rate of 500 kbps and slew-limited driver outputs, it minimizes reflections and EMI in long cable runs. A digital isolator is a component that provides electrical isolation between two circuits while allowing digital signals to pass. It uses capacitive or magnetic coupling (such as Analog Devices' iCoupler technology) to transfer data across an isolation barrier, protecting sensitive logic from high voltages, ground loops, and noise. In the hierarchy of isolation components, a digital isolator falls under the category of isolation ICs, which are essential in industrial automation, motor control, and communication interfaces where safety and signal integrity are paramount. Key features of the ADM2483BRWZ include 2500 Vrms isolation voltage, 25 kV/µs common-mode transient immunity (CMTI), and a wide operating temperature range of -40°C to +85°C. The logic side can be powered with either 5 V or 3 V, while the bus side requires a 5 V supply. The device features a 3-channel configuration (one driver and two receiver channels) and supports half-duplex communication. Its low power consumption of 2.5 mA max makes it suitable for power-sensitive applications. Technically, the ADM2483BRWZ uses iCoupler technology, which employs chip-scale transformers to provide isolation, offering advantages over optocouplers in terms of speed, reliability, and power efficiency. The device includes thermal shutdown protection and is available in a 16-lead SOIC-W package with a standard 7.50 mm width. The slew-limited driver reduces electromagnetic interference, and the receiver has a wide common-mode input range, enhancing noise immunity. Typical applications include industrial fieldbus networks, PROFIBUS, Modbus, building automation, and HVAC systems. The device is ideal for isolating RS-485 buses in harsh environments where ground potential differences exist between nodes. Its high CMTI ensures reliable operation in the presence of fast transients, such as those from motor drives or lightning surges. When designing with the ADM2483BRWZ, ensure proper decoupling on both the logic and bus sides, and terminate the bus correctly to minimize reflections. The device is RoHS compliant and lead-free, making it suitable for environmentally conscious designs.
ADM2484EBRWZ - Isolated RS-485 Transceiver | Analog Devices
The ADM2484EBRWZ from Analog Devices is an isolated RS-485/RS-422 transceiver with integrated iCoupler digital isolation, providing 5000 Vrms isolation and ±15 kV ESD protection. It supports data rates up to 500 kbps and features a 25 kV/µs common-mode transient immunity (CMTI), making it suitable for industrial and instrumentation applications where robust communication over long distances is required. The device is available in a 16-lead SOIC package (0.295" width, 7.50 mm) and operates over a wide temperature range. An isolated RS-485 transceiver is a device that combines a differential line driver and receiver with galvanic isolation between the bus side and the logic side. This isolation protects the microcontroller and other low-voltage circuitry from ground potential differences, electrical noise, and transient surges that can occur on long communication lines. The ADM2484E integrates the isolation barrier using Analog Devices' iCoupler technology, which uses chip-scale transformers to transmit data across the isolation boundary, eliminating the need for external optocouplers and providing more reliable and higher-speed isolation compared to traditional optocoupler-based solutions. Key features of the ADM2484EBRWZ include a 3.3 V or 5 V logic supply, a 5 V bus supply, and a wide common-mode input range. The transceiver supports both half-duplex and full-duplex operation, with the transmitter outputs and receiver inputs sharing the same transmission line in half-duplex mode. The device also features thermal shutdown protection and a low quiescent current, making it suitable for power-sensitive applications. The ±15 kV ESD protection on the bus pins ensures robustness in harsh industrial environments. The ADM2484E uses a differential signaling scheme that provides excellent noise immunity and allows data transmission over distances up to 1200 meters. The integrated isolation barrier provides 5000 Vrms isolation, which is essential for applications where ground potential differences exist between nodes. The device's 25 kV/µs CMTI ensures that fast transients on the bus do not corrupt the data, making it ideal for motor drives, inverters, and other high-noise environments. Typical applications include industrial fieldbus networks, building automation, HVAC systems, and process control. The ADM2484EBRWZ is also suitable for isolated RS-485 interfaces in solar inverters, battery management systems, and other power electronics. Its robust ESD protection and high isolation voltage make it a reliable choice for long-distance communication in harsh environments. When designing with the ADM2484EBRWZ, it is important to provide proper decoupling on both the logic and bus supply pins, and to ensure that the bus termination resistors are correctly placed to match the characteristic impedance of the transmission line. The device's thermal shutdown feature protects it from over-temperature conditions, but adequate PCB layout with proper grounding is essential for optimal performance.
ADM2484EBRWZ-RL7 - Isolated RS-485 Transceiver | Analog Devices
The ADM2484EBRWZ-RL7 from Analog Devices is an isolated RS-485/RS-422 transceiver with integrated iCoupler digital isolation, providing 5000 Vrms galvanic isolation and ±15 kV ESD protection. It supports half- or full-duplex communication at data rates up to 500 kbps, making it ideal for industrial multipoint networks. The device operates from a 3.0 V to 5.5 V supply on the logic side (VDD1) and a 3.0 V to 3.6 V supply on the bus side (VDD2), with a common-mode transient immunity (CMTI) of 25 kV/µs. Housed in a 16-lead SOIC-W (0.295" width) package, it is available in tape and reel packaging (RL7 suffix). An isolated RS-485 transceiver is a device that combines a differential bus transceiver with galvanic isolation, typically using capacitive or magnetic coupling, to transmit data across a potential difference while preventing ground loops and protecting low-voltage logic from high-voltage transients. It sits within the hierarchy: isolated transceiver -> RS-485 transceiver -> interface IC -> semiconductor. This integration eliminates the need for external optocouplers and separate isolated power supplies, simplifying PCB design and improving reliability. Key features include 5000 Vrms isolation rating, 500 kbps data rate, 25 kV/µs CMTI, and ±15 kV ESD protection on the bus pins. The device also features thermal shutdown protection and a wide operating temperature range of -40°C to +125°C. The iCoupler technology ensures consistent timing and low power consumption, with a typical quiescent current of 2.5 mA on VDD1 and 2.0 mA on VDD2. Technically, the ADM2484E uses Analog Devices' iCoupler technology, which employs chip-scale transformers to isolate signals, providing superior performance compared to optocouplers in terms of speed, power, and reliability. The transceiver includes a differential driver and receiver, with the driver outputs Y and Z and receiver inputs A and B. For half-duplex operation, Y is tied to A and Z to B externally. The device also features a DE (driver enable) and RE (receiver enable) pins for bus control. Typical applications include industrial fieldbus networks, building automation, HVAC systems, and motor control drives, where robust communication over long distances and noisy environments is required. The high CMTI and ESD protection make it suitable for harsh industrial settings. When designing with this device, ensure proper decoupling on both VDD1 and VDD2 with 0.1 µF capacitors close to the pins. Also, terminate the bus properly (e.g., 120 Ω) to minimize reflections, and consider using a common-mode choke for enhanced EMI immunity.
ADM2487EBRWZ - Isolated RS-485 Transceiver | Analog Devices
The ADM2487EBRWZ from Analog Devices is an isolated RS-485/RS-422 transceiver with an integrated transformer driver, providing 2.5 kVrms isolation and ±15 kV ESD protection. It supports data rates up to 500 kbps and features a common-mode transient immunity (CMTI) of 25 kV/µs, making it suitable for industrial multipoint communication networks. The device is configurable for half-duplex or full-duplex operation and comes in a 16-lead SOIC-W (0.295" width) package. An isolated RS-485 transceiver is a component that combines a differential line driver and receiver with galvanic isolation, allowing data transmission between systems with different ground potentials. It is a key element in industrial automation, building control, and instrumentation networks, where it ensures signal integrity and protects against ground loops and voltage transients. The ADM2487E belongs to the family of isolated interface ICs, which are part of the broader category of digital isolators and interface transceivers. Key features include an integrated oscillator driver for an external transformer, eliminating the need for a separate DC-DC converter, and a 3-channel architecture (one driver, one receiver, and one isolation channel). The device operates from a 5V supply on the logic side and a 5V supply on the bus side, with a typical quiescent current of 2.5 mA. It also features thermal shutdown and short-circuit protection on the driver outputs. The ADM2487E uses Analog Devices' iCoupler technology, which integrates micro-transformers to provide isolation, resulting in a compact and reliable solution compared to optocoupler-based designs. The high CMTI of 25 kV/µs ensures reliable operation in noisy industrial environments, and the ±15 kV ESD protection on the bus pins enhances robustness against electrostatic discharge. Typical applications include industrial fieldbus networks (PROFIBUS, Modbus), building automation (HVAC, lighting control), and instrumentation systems where long cable runs and ground potential differences are common. The device's half-duplex capability allows it to be used in 2-wire RS-485 networks, while full-duplex operation supports 4-wire configurations. When designing with the ADM2487E, ensure proper PCB layout with adequate spacing for isolation, and place the external transformer close to the device to minimize parasitic inductance. Also, terminate the bus properly to avoid reflections and ensure reliable communication at 500 kbps.
ADM2490EBRWZ - Isolated RS-485 Transceiver | Analog Devices
The ADM2490EBRWZ from Analog Devices is a high-speed, ESD-protected, full-duplex, iCoupler isolated RS-485/RS-422 transceiver. It integrates a 2-channel digital isolator and a three-state differential line driver and receiver into a single 16-lead SOIC package, providing galvanic isolation up to 5000 Vrms. The device supports data rates up to 16 Mbps and offers ±8 kV ESD protection on the RS-485 input/output pins, making it suitable for industrial multipoint transmission lines. It complies with ANSI TIA/EIA-485-A-1998 and ISO 8482: 1987 (E) standards. An isolated RS-485 transceiver is a component that combines a differential bus transceiver with galvanic isolation, allowing data communication between systems with different ground potentials while preventing ground loops and protecting against common-mode voltage differences. It is a key building block in industrial automation, building control, and instrumentation networks, where robust and reliable data transmission over long distances is required. The isolation barrier is typically implemented using capacitive or magnetic coupling, as in Analog Devices' iCoupler technology. Key features of the ADM2490EBRWZ include a 16 Mbps data rate, 25 kV/µs common-mode transient immunity (CMTI), and a wide supply voltage range of 3.0 V to 5.5 V on the logic side and 5 V on the bus side. The device also features thermal shutdown protection and a three-state output for bus sharing. The iCoupler technology ensures low power consumption and high reliability compared to optocoupler-based solutions. The ADM2490E uses iCoupler technology, which employs chip-scale transformers to transmit data across the isolation barrier, offering superior performance in terms of speed, power efficiency, and reliability compared to traditional optocouplers. The device is designed for full-duplex communication, with separate differential driver and receiver pairs, and includes a driver enable pin for half-duplex operation. The wide operating temperature range of -40°C to +105°C makes it suitable for harsh industrial environments. Typical applications include industrial fieldbus networks, PROFIBUS, Modbus, building automation, and motor control systems. The high CMTI and ESD protection ensure reliable operation in noisy environments. The ADM2490EBRWZ is available in a 16-lead SOIC package (0.295" width, 7.50 mm) and is RoHS compliant. When designing with this device, ensure proper decoupling on both sides of the isolation barrier and consider the common-mode voltage range to avoid exceeding the device's specifications. The bus side should be terminated according to the transmission line impedance to minimize reflections.
ADM2490EBRWZ-RL7 - Isolated RS-485 Transceiver | Analog Devices
The ADM2490EBRWZ-RL7 is a high-speed, ESD-protected, full-duplex, iCoupler isolated RS-485 transceiver from Analog Devices. It integrates a two-channel digital isolator and a differential bus transceiver in a single 16-pin SOIC-W package, providing galvanic isolation up to 5000 Vrms. The device supports data rates up to 16 Mbps and features a high common-mode transient immunity (CMTI) of 25 kV/µs, ensuring reliable communication in electrically noisy environments. An RS-485 transceiver is a device that converts logic-level signals to differential voltages for balanced data transmission over twisted-pair cables, enabling robust communication over long distances and in harsh industrial settings. The ADM2490E belongs to the family of isolated interface ICs, which combine signal isolation and line driving in one package, simplifying PCB design and improving system reliability. Key features include a 5V supply on both logic and bus sides, a full-duplex interface with separate driver and receiver channels, and thermal shutdown protection. The device is specified for operation over the industrial temperature range of -40°C to +105°C. Its integrated iCoupler technology uses chip-scale transformers to provide isolation, eliminating the need for external optocouplers and associated components. The ADM2490E is designed for multipoint bus transmission, allowing up to 64 nodes on a single bus. It includes a receiver with a wide common-mode input range and a driver with short-circuit protection. The device is fully compliant with TIA/EIA RS-485 and RS-422 standards, making it suitable for industrial automation, building control, and instrumentation networks. Typical applications include industrial fieldbus systems, HVAC control networks, and isolated data acquisition systems. The high CMTI and 5000 Vrms isolation make it ideal for applications requiring robust galvanic isolation, such as motor drives and power inverters. When designing with this device, ensure proper PCB layout with adequate creepage and clearance distances for the isolation barrier. Place decoupling capacitors close to the supply pins and use a solid ground plane to minimize noise coupling.
ADM2582EBRWZ - Isolated RS-485 Transceiver | Analog Devices
The ADM2582EBRWZ from Analog Devices is a fully integrated signal and power isolated RS-485/RS-422 transceiver with ±15 kV ESD protection, designed for high-speed communication on multipoint transmission lines. It integrates a 2.5 kVrms isolation barrier and an isoPower DC-to-DC converter, eliminating the need for an external isolated power supply. The device supports data rates up to 16 Mbps and features a high common-mode transient immunity of 25 kV/µs, making it suitable for industrial and harsh environments. It is available in a 20-lead wide-body SOIC package (SOIC-20W) and operates over the industrial temperature range of -40°C to +85°C. An isolated RS-485 transceiver is a type of interface IC that combines a differential bus transceiver with galvanic isolation, protecting the host side from ground loops, voltage spikes, and noise on the bus. It is part of the broader category of digital isolators and interface ICs, which are essential in industrial automation, motor control, and building automation systems where reliable data transmission over long distances is required. The ADM2582E integrates the isolation barrier and power conversion, simplifying design and reducing board space compared to discrete solutions. Key features include a 2.5 kVrms isolation rating, ±15 kV ESD protection on the bus pins, and a wide supply voltage range of 3.3V to 5V. The transceiver is configurable as full or half duplex, with a driver output capable of driving up to 64 nodes on the bus. The isoPower technology uses high-frequency switching to transfer power across the isolation barrier, providing a regulated output for the bus side. The device also includes thermal shutdown and short-circuit protection, ensuring robust operation in fault conditions. Technically, the ADM2582E uses Analog Devices' proprietary isoPower and iCoupler technologies, which integrate the transformer and isolation capacitors into the package. This results in a compact solution with high reliability. The device has a typical propagation delay of 50 ns and a skew of 5 ns, ensuring precise timing for high-speed communication. The common-mode transient immunity of 25 kV/µs prevents data corruption in noisy environments. Typical applications include industrial fieldbus networks, PROFIBUS, Modbus, and other RS-485/RS-422 communication links in factory automation, HVAC systems, and motor drives. The integrated power isolation makes it ideal for applications where a separate isolated supply is impractical. The device is also suitable for building automation and security systems where long cable runs and ground potential differences are common. When designing with the ADM2582E, ensure proper PCB layout with adequate spacing for the isolation barrier and use recommended decoupling capacitors on both sides. The device requires an external transformer for the isoPower converter, which must be selected according to the datasheet guidelines. Also, consider the maximum data rate and cable length to maintain signal integrity.
ADM2582EBRWZ-RL7 - Isolated RS-485 Transceiver | Analog Devices
The ADM2582EBRWZ-RL7 from Analog Devices is a fully integrated signal and power isolated RS-485/RS-422 transceiver that combines iCoupler and isoPower technologies into a single 20-lead SOIC_W package. It provides 2500Vrms isolation and supports data rates up to 16Mbps, eliminating the need for an external DC-to-DC converter. The device features ±15kV ESD protection on the bus pins, making it robust for industrial environments. An isolated RS-485 transceiver is a component that integrates a differential bus transceiver with galvanic isolation, allowing data communication between systems with different ground potentials. It typically includes an integrated isolated power supply, such as isoPower, to provide power to the secondary side without an external transformer. This category sits within the broader hierarchy of interface ICs, specifically under RS-485/RS-422 transceivers, and is essential for industrial automation, building control, and instrumentation where ground loops and noise immunity are critical. Key features include a 2.5kVrms isolation rating, 16Mbps data rate, ±15kV ESD protection, and a common-mode transient immunity (CMTI) of 25kV/µs. The device operates from a single 5V supply and includes an integrated transformer driver, eliminating the need for external components. It supports both full-duplex and half-duplex operation, with a wide operating temperature range of -40°C to +85°C. The ADM2582E uses Analog Devices' proprietary iCoupler technology for signal isolation and isoPower for isolated power transfer. This architecture provides reliable isolation with low power consumption and high data integrity. The integrated DC-to-DC converter simplifies PCB design and reduces board space compared to discrete isolation solutions. Typical applications include industrial fieldbus networks, PROFIBUS, Modbus, building automation, and motor control systems. The high CMTI and ESD protection make it suitable for harsh environments where transient voltages and ground potential differences are common. When designing with this device, ensure proper PCB layout with adequate creepage and clearance distances for the isolation barrier. The integrated power supply requires careful decoupling on both sides of the isolation barrier to maintain performance.
ADM2587EBRWZ - 2.5kV Isolated RS-485 Transceiver | Analog Devices
The ADM2587EBRWZ from Analog Devices is a fully integrated signal and power isolated RS-485/RS-422 transceiver with ±15 kV ESD protection. It combines a 2-channel digital isolator, a 3-state differential line driver, and a differential input receiver into a single 20-lead wide-body SOIC package. The device operates from a single 5V or 3.3V supply and includes an integrated isolated DC-DC converter, eliminating the need for a separate isolated power supply. It supports data rates up to 500 kbps and provides 2.5 kVrms isolation with 25 kV/µs common-mode transient immunity (CMTI). The ADM2587E is suitable for high-speed communication on multipoint transmission lines and is fully specified over the industrial temperature range of -40°C to +85°C. An isolated RS-485 transceiver is a device that combines a differential bus transceiver with galvanic isolation, typically using magnetic or capacitive coupling, to protect the host system from ground loops, voltage spikes, and noise on the communication bus. It is a critical component in industrial automation, building control, and instrumentation systems where long cable runs and harsh electrical environments are common. The isolation barrier separates the logic side from the bus side, preventing dangerous voltages from reaching the microcontroller or other sensitive circuitry. Key features of the ADM2587EBRWZ include an integrated isolated DC-DC converter that provides a regulated output voltage for the bus side, eliminating the need for an external isolated power supply. The device offers full-duplex and half-duplex operation, with an active-high driver enable and an active-low receiver enable. It also features current limiting and thermal shutdown protection against output short circuits and bus contention. The ±15 kV ESD protection on the bus pins ensures robust operation in harsh industrial environments. The ADM2587E uses Analog Devices' isoPower technology, which employs high-frequency switching elements to transfer power across the isolation barrier through a transformer. This integrated approach reduces component count and board space compared to discrete isolation solutions. The device is available in a 20-lead wide-body SOIC package (RW-20), which provides excellent thermal performance and is compatible with standard surface-mount assembly processes. Typical applications include industrial fieldbus networks, building automation systems, HVAC controllers, and remote sensor interfaces. The ADM2587EBRWZ is ideal for systems requiring reliable data communication over long distances with galvanic isolation to protect against ground potential differences and electrical noise. When designing with the ADM2587EBRWZ, it is important to provide adequate decoupling on both the logic and bus-side power pins. The integrated DC-DC converter requires an external transformer and rectifier diodes, which must be placed close to the device to minimize parasitic inductance. Proper PCB layout is critical to achieve the specified CMTI and ESD performance.
ADM2587EBRWZ-REEL7 - Isolated RS-485 Transceiver | Analog Devices
The ADM2587EBRWZ-REEL7 from Analog Devices is a fully integrated signal and power isolated RS-485/RS-422 transceiver with ±15 kV ESD protection, designed for high-speed communication on multipoint transmission lines. It integrates an isoPower isolated DC-to-DC converter, eliminating the need for an external isolated power supply, and provides 2500 Vrms isolation between the logic side and the bus side. The device operates from a single 5 V or 3.3 V supply and supports data rates up to 500 kbps, making it suitable for industrial automation, building control, and instrumentation networks. An isolated RS-485 transceiver is a type of interface IC that combines a differential line driver and receiver with galvanic isolation, protecting the host system from ground loops, common-mode voltages, and electrical noise. It sits within the hierarchy of interface ICs, specifically under RS-485/RS-422 transceivers, which are part of the broader category of serial communication interfaces. The integrated DC-DC converter and signal isolation in a single package simplify PCB design and reduce board space compared to discrete isolation solutions. Key features include 2500 Vrms isolation, ±15 kV ESD protection on the RS-485 pins, high common-mode transient immunity of >25 kV/µs, and compliance with ANSI/TIA/EIA-485-A-98 and ISO 8482:1987(E). The device supports up to 256 nodes on one bus, has open- and short-circuit fail-safe receiver inputs, and includes thermal shutdown protection. The wide-body 20-lead SOIC package (0.295" width) is suitable for industrial temperature ranges. Technically, the ADM2587E uses Analog Devices' isoPower technology, which integrates a push-pull DC-DC converter with a transformer-based isolation barrier, providing isolated power and data in one chip. The transceiver features a full-duplex or half-duplex operation, with a driver enable pin and receiver enable pin for bus control. The high CMTI ensures reliable operation in noisy industrial environments where fast voltage transients occur. Typical applications include industrial fieldbus networks, building automation systems, HVAC controllers, and remote sensor data acquisition. The integrated isolation and power make it ideal for systems where ground potential differences exist between nodes, such as in motor drives and power inverters. When designing with this device, ensure proper PCB layout with adequate creepage and clearance distances for the isolation barrier, and place decoupling capacitors close to the VCC and VISO pins. The integrated DC-DC converter requires an external transformer and rectifier circuit, as specified in the datasheet, to generate the isolated supply voltage.
ADM2682EBRIZ - 5kV Isolated RS-485 Transceiver | Analog Devices
The ADM2682EBRIZ from Analog Devices is a fully integrated 5 kV rms signal and power isolated RS-485/RS-422 transceiver with ±15 kV ESD protection, designed for high-speed communication on multipoint transmission lines. It integrates a DC-to-DC converter, eliminating the need for an external isolated power supply, and supports data rates up to 16 Mbps. The device is housed in a 16-lead SOIC-W (wide body) package, providing a compact solution for industrial and instrumentation applications. An isolated RS-485 transceiver is a device that combines a differential bus transceiver with galvanic isolation, typically using an integrated DC-DC converter and digital isolators. It allows communication between systems with different ground potentials, preventing ground loops and protecting against common-mode voltage differences. In the hierarchy of interface ICs, it falls under RS-485 transceivers, which are part of the broader category of serial communication interfaces used in industrial automation, building control, and process control networks. Key features include 5 kV rms isolation, 16 Mbps data rate, 25 kV/µs common-mode transient immunity (CMTI), and ±15 kV ESD protection on the bus pins. The integrated isolated DC-DC converter provides up to 200 mA output current, simplifying power supply design. The device operates from a single 5V supply and features thermal shutdown protection. The wide-body SOIC-16 package ensures adequate creepage and clearance for high-voltage isolation. Technically, the ADM2682E uses Analog Devices' proprietary iCoupler technology for signal isolation and an integrated transformer for power isolation. The CMTI of 25 kV/µs ensures reliable operation in noisy industrial environments. The transceiver is fully compliant with TIA/EIA RS-485 and RS-422 standards, supporting up to 256 nodes on a bus. The device also includes a logic-side supply (VDD1) and bus-side supply (VDD2) that can be independently powered, offering flexibility in system design. Typical applications include industrial fieldbus networks, PROFIBUS, Modbus, building automation, and isolated data acquisition systems. The high isolation voltage and ESD protection make it ideal for harsh environments where ground potential differences and electrical noise are prevalent. The integrated power isolation reduces board space and component count, improving reliability. When designing with the ADM2682EBRIZ, ensure proper PCB layout with adequate creepage distance under the SOIC-16 package. Place decoupling capacitors close to the VDD1 and VDD2 pins, and consider the thermal dissipation of the integrated DC-DC converter. The device requires a minimum of 3.3V on VDD1 and VDD2, and the bus side can operate from 3.3V or 5V, allowing interface with various logic levels.
ADM2682EBRIZ-RL7 - 16Mbps Isolated RS-485 Transceiver | Analog Devices
The ADM2682EBRIZ-RL7 from Analog Devices is a fully integrated, 5 kV rms signal and power isolated RS-485/RS-422 transceiver with 15 kV ESD protection. It combines a 3-channel digital isolator, an RS-485 transceiver, and an integrated isolated DC-DC converter in a single 16-lead wide-body SOIC package. This device supports data rates up to 16 Mbps and features a high common-mode transient immunity (CMTI) of 25 kV/µs, making it ideal for harsh industrial environments where ground loops and noise are concerns. An isolated RS-485 transceiver is a component that provides both electrical isolation and differential data communication. It integrates a transceiver with digital isolators and often an isolated power supply, allowing data transmission across a galvanic isolation barrier. This is essential in industrial automation, motor control, and building management systems where different ground potentials can cause damaging ground currents. The ADM2682E belongs to the family of isolated interface ICs, which are part of the broader category of interface and isolation products. Key features include 5 kV rms isolation voltage, 16 Mbps data rate, 15 kV ESD protection on the bus pins, and an integrated isolated DC-DC converter that eliminates the need for a separate isolated power supply. The device operates from a single 5V supply and provides a regulated 5V isolated output. It is fully specified over the industrial temperature range of -40°C to +85°C and is available in a wide-body SOIC-16 package with >8 mm creepage and clearance. The ADM2682E uses Analog Devices' iCoupler technology for signal isolation and isoPower technology for isolated power transfer. The isoPower technology uses high-frequency switching elements to transfer power through a transformer, providing a compact and efficient solution. The device features a thermal shutdown and a logic-level fault output, enhancing system reliability. Typical applications include industrial fieldbus networks, PROFIBUS, Modbus, building automation, and motor control systems. The integrated isolation and power make it ideal for space-constrained designs where board area is at a premium. When designing with this device, ensure proper PCB layout with adequate creepage and clearance distances, and place decoupling capacitors close to the supply pins. The integrated DC-DC converter requires careful attention to the external transformer and rectifier components as specified in the datasheet.
ADM2687EBRIZ - 5kV Isolated RS-485 Transceiver | Analog Devices
The ADM2687EBRIZ from Analog Devices is a fully integrated, 5 kV rms signal and power isolated RS-485/RS-422 transceiver with ±15 kV ESD protection. It combines a 3-channel digital isolator, a differential transceiver, and an integrated isoPower DC-to-DC converter in a single 16-lead SOIC-W package. This device supports data rates up to 500 kbps and provides 25 kV/µs common-mode transient immunity (CMTI), making it ideal for industrial communication networks where ground loops and noise are concerns. An isolated RS-485 transceiver is a component that combines a differential bus transceiver with galvanic isolation, allowing data transmission between systems with different ground potentials. It typically includes a digital isolator for signal isolation and an integrated DC-to-DC converter for isolated power, eliminating the need for separate isolated power supplies. This integration simplifies PCB design and reduces component count, making it a key building block in industrial automation, building control, and instrumentation systems. Key features include 5 kV rms isolation, ±15 kV ESD protection on the RS-485 pins, compliance with ANSI/TIA/EIA-485-A-98 and ISO 8482:1987(E), and a configurable half- or full-duplex interface. The integrated isoPower converter provides up to 500 mW of isolated power, and the device operates from a single 5V supply. The wide operating temperature range of -40°C to +85°C ensures reliability in harsh environments. The ADM2687E uses Analog Devices' proprietary isoPower technology, which integrates a DC-to-DC converter using chip-scale transformers, eliminating the need for external isolated power modules. The device also features a thermal shutdown and a watchdog timer for enhanced system protection. Its high CMTI of 25 kV/µs ensures reliable operation in noisy industrial environments. Typical applications include industrial fieldbus networks, PROFIBUS, Modbus, building automation, and HVAC systems. The device is also suitable for isolated data acquisition systems and motor control interfaces. Its integrated power and signal isolation make it a compact solution for space-constrained designs. When designing with the ADM2687EBRIZ, ensure proper PCB layout with adequate creepage and clearance distances for the 5 kV isolation rating. Place the isolation barrier components carefully to maintain isolation integrity. Also, consider the thermal dissipation of the integrated DC-to-DC converter, especially at high data rates and loads.
ADM2687EBRIZ-RL7 - 5kV Isolated RS-485 Transceiver | Analog Devices
The ADM2687EBRIZ-RL7 from Analog Devices is a fully integrated 5 kV rms signal and power isolated RS-485/RS-422 transceiver with ±15 kV ESD protection. It is designed for high-speed communication on multipoint transmission lines and includes an integrated isolated DC-to-DC converter, eliminating the need for an external power supply. The device operates at data rates up to 500 kbps and provides 25 kV/µs common-mode transient immunity (CMTI), ensuring robust performance in noisy industrial environments. Housed in a 16-lead wide-body SOIC package (0.295" width), it is suitable for space-constrained applications. An isolated RS-485 transceiver is a type of digital isolator that combines a differential line driver and receiver with galvanic isolation, allowing data transmission across a potential difference while protecting the system from ground loops and high-voltage transients. It is a key component in industrial automation, building control, and instrumentation systems where reliable long-distance communication is essential. The ADM2687E integrates the isolation barrier and power conversion into a single package, simplifying design and improving system reliability. Key features include 5 kV rms isolation, ±15 kV ESD protection on the RS-485 pins, and compliance with ANSI/TIA/EIA-485-A-98 and ISO 8482:1987 (E) standards. The device supports both half-duplex and full-duplex configurations, making it versatile for various bus topologies. The integrated isoPower DC-to-DC converter provides a regulated output, reducing external component count and board space. Technically, the ADM2687E uses Analog Devices' proprietary iCoupler technology for signal isolation and isoPower for isolated power transfer. This architecture ensures high reliability and low power consumption. The device operates over a wide temperature range of -40°C to +85°C, making it suitable for industrial applications. The wide-body SOIC package offers excellent thermal performance and is compatible with standard reflow soldering processes. Typical applications include industrial fieldbus networks, building automation systems, HVAC controllers, and motor control drives. The ADM2687E is also ideal for solar inverters and power monitoring systems where galvanic isolation is critical for safety and noise immunity. When designing with this device, ensure proper PCB layout with adequate creepage and clearance distances for the isolation barrier. Place decoupling capacitors close to the power pins and follow the recommended layout guidelines in the datasheet to achieve optimal EMC performance.
ADM3066EBRMZ-RL7 - 50Mbps RS-485 Transceiver | Analog Devices
The ADM3066EBRMZ-RL7 is a half-duplex RS-485 transceiver from Analog Devices, designed for high-speed industrial communication networks. It operates from a 3.0 V to 5.5 V supply and features a separate VIO logic supply (1.62 V to 5.5 V) for interfacing with low-voltage logic. The device supports data rates up to 50 Mbps, making it suitable for high-throughput industrial automation, building automation, and motor control systems. It is available in a 10-lead MSOP package, offering a compact footprint for space-constrained designs. RS-485 is a robust differential signaling standard used for multi-point communication over long distances. It allows multiple transceivers to share a two-wire bus, with differential signaling providing immunity to common-mode noise. The ADM3066E is a transceiver, meaning it combines a driver and receiver in one package, enabling bidirectional communication on a half-duplex bus. This device is part of the ADM306x family, which includes variants with different data rates and ESD protection levels. Key features of the ADM3066EBRMZ-RL7 include ±12 kV IEC 61000-4-2 ESD protection on the A and B bus pins, ensuring robustness in harsh industrial environments. The wide VIO range allows direct connection to 1.8 V, 2.5 V, or 3.3 V logic without level shifters. The device also features a low quiescent current, making it suitable for power-sensitive applications. The half-duplex configuration simplifies wiring, as only two bus lines are required. From a technical perspective, the ADM3066E uses a differential driver with controlled slew rates to minimize EMI and reflections. The receiver has a wide common-mode input range of -7 V to +12 V, allowing operation in noisy environments with ground potential differences. The device includes thermal shutdown and short-circuit protection on the driver outputs, enhancing reliability. The MSOP package has a thermal resistance of approximately 206 °C/W, which should be considered for high-temperature operation. Typical applications include industrial control systems, building automation (HVAC, lighting), motor drives, and networked sensors. The 50 Mbps data rate supports high-speed data acquisition and real-time control. The wide VIO range simplifies integration with modern microcontrollers and FPGAs. When designing with this device, ensure proper termination (120 Ω) at both ends of the bus to minimize reflections. The A and B pins should be biased to a known state when the bus is idle to avoid undefined receiver outputs. Place decoupling capacitors close to the VCC and VIO pins.
ST1480ACDR - 3.3V RS-485/RS-422 Transceiver | STMicroelectronics
The ST1480ACDR is a low-power, half-duplex RS-485/RS-422 transceiver from STMicroelectronics, designed for balanced data transmission in industrial and instrumentation applications. It operates from a single 3.3V supply and supports data rates up to 12 Mbps, making it suitable for high-speed communication networks. The device is available in the industry-standard SOIC-8 package, ensuring easy integration into existing designs. An RS-485 transceiver is a line driver and receiver pair that enables robust differential data communication over long distances and in noisy environments. It converts TTL/CMOS logic levels to differential signals on a twisted-pair bus, allowing multiple devices to share the same wiring. RS-485 is a physical layer standard defined by the TIA/EIA-485 specification, widely used in industrial automation, building control, and networking. The ST1480ACDR implements this standard with a 3.3V supply, reducing power consumption compared to 5V counterparts while maintaining compatibility with 5V logic through its fail-safe receiver. Key features of the ST1480ACDR include a wide common-mode input range of -7V to +12V, which enhances noise immunity and allows operation in harsh industrial environments. The device features a 1/8 unit load, allowing up to 256 transceivers on a single bus, and includes thermal shutdown and short-circuit protection for robust operation. Its low quiescent current of 900 uA makes it ideal for power-sensitive applications. The ST1480ACDR uses a standard RS-485 architecture with a differential driver and receiver, featuring a tri-state output for half-duplex operation. The receiver has a fail-safe design that ensures a high output when the inputs are open, shorted, or terminated, preventing false data. The driver is capable of delivering up to 60 mA of output current, meeting the RS-485 standard's minimum requirement of 1.5V differential output across a 54-ohm load. Typical applications include industrial control networks, building automation, HVAC systems, and point-of-sale terminals. Its high data rate and robust ESD protection (8 kV HBM) make it suitable for factory automation and process control. The device is also used in security systems and remote sensor networks where reliable long-distance communication is critical. When designing with the ST1480ACDR, ensure proper termination (120-ohm) at both ends of the bus to minimize reflections. The fail-safe receiver feature eliminates the need for external bias resistors in most applications, simplifying the design. For half-duplex operation, control the driver enable (DE) and receiver enable (RE) pins to avoid bus contention.