Interface ICs
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Products (3,400+)
LT3669EUFD#PBF - IO-Link Transceiver with Buck/LDO | Analog Devices
The Analog Devices LT3669EUFD#PBF is an industrial IO-Link transceiver with an integrated step-down switching regulator and low-dropout linear regulator in a 28-QFN package. It combines wake-up detect functionality, a programmable power-on reset timer, and externally adjustable transmitter current limit and slew rate. The device is identified as a single transmitter/receiver IO-Link interface solution for industrial sensor and actuator systems. An IO-Link transceiver is a specialized interface IC that connects sensors, actuators, and industrial equipment using power and communication lines. The LT3669 integrates that interface function with local power conversion, allowing a system designer to provide both the IO-Link communication path and regulated auxiliary power from one device. Its architecture belongs to the transceiver, interface IC, power-management IC, and embedded industrial-control hierarchy. The principal verified features include a 28-pin QFN surface-mount package, integrated step-down regulator and LDO, wake-up detect, programmable power-on reset timing, and adjustable transmitter current limit and slew rate. The manufacturer describes the LT3669 family as recommended for new designs. These features make it useful in industrial IO-Link master or sensor interfaces where space, local power, fault handling, and deterministic startup behavior matter. The device can be used in industrial automation equipment, factory sensor nodes, actuator interfaces, process-control systems, and IO-Link-compatible sensor modules. The integrated power regulators reduce the number of separate support components, while wake-up detection can help a connected system recognize a remote device state. The programmable power-on reset timer provides additional control during system startup and recovery. When designing around the LT3669EUFD#PBF, engineers should verify the exact electrical limits, pin functions, regulator settings, and external component values against the official LT3669/LT3669-2 datasheet. The QFN package also requires careful PCB layout and thermal management. The integrated switching regulator can introduce layout-dependent EMI and high-current paths, so input decoupling, switching-loop minimization, and exposed-pad thermal design should be reviewed before production. This product page combines the verified Analog Devices product information, distributor listings, and practical engineering guidance. It is intended to help engineers identify the correct IO-Link transceiver, compare package and lifecycle information, locate the datasheet, and plan a robust industrial interface implementation. The target MPN includes the E suffix and PBF lead-free ordering designation; variant and package details should be confirmed against the manufacturer documentation before substituting or upgrading. LT3669EUFD#PBF is best suited to compact industrial IO-Link systems where communication, auxiliary power, wake-up detection, and programmable startup behavior are integrated in a single 28-QFN device. Use the manufacturer datasheet as the authority for final electrical, thermal, timing, and application values.
LT3669EUFD#TRPBF - IO-Link Transceiver | Analog Devices
The Analog Devices LT3669EUFD#TRPBF is an industrial IO-Link transceiver with an integrated step-down switching regulator and low-dropout regulator, housed in a 28-QFN surface-mount package. The verified product listing identifies a 4 mm by 5 mm package and tape-and-reel ordering code TRPBF. Its integrated power architecture supports IO-Link sensor or actuator interfaces while reducing the number of external power-conversion stages required around the field device. An IO-Link transceiver is an industrial interface IC that connects a controller to sensors or actuators using IO-Link communication. In the broader hierarchy, it belongs to interface ICs and industrial fieldbus connectivity. The LT3669 family combines physical-layer signaling, wake-up detection, programmable power-on reset timing, and local power regulation so a compact sensor or actuator can be powered and communicated with in one assembly. According to the Analog Devices product page, LT3669 and LT3669-2 are recommended for new designs. The manufacturer datasheet also identifies wake-up detect and a programmable power-on reset timer. The transceiver's transmitter current limit and slew rate are externally adjustable, allowing the interface behavior to be matched to the connected industrial load and cable environment. The verified data does not provide numerical values for those adjustments. The integrated step-down regulator supplies a lower-voltage rail efficiently, while the LDO supports a cleaner local supply. Combining both functions with the IO-Link transceiver can simplify PCB area in industrial sensors, proximity devices, and actuator modules. The trade-off is a more specialized IC whose external component values, current limits, timing, and thermal performance must be selected together rather than as separate power-stage designs. The LT3669 family is suitable for factory automation, industrial sensing, actuator control, and fieldbus-connected modules where IO-Link power and communication share one interface device. The 28-QFN package requires careful PCB layout and adequate thermal design, particularly when the internal switching regulator operates at higher load. The manufacturer product page lists LT3669 and LT3669-2 as recommended for new designs, while the exact LT3669EUFD#TRPBF lifecycle status should be confirmed against current authorized-channel inventory. This page combines verified distributor listings, manufacturer positioning, package information, and practical design guidance for engineers evaluating the LT3669EUFD#TRPBF. Numeric electrical limits, pricing tiers, and detailed pin functions not present in the supplied source data are intentionally marked as data needed rather than inferred.
LT3669EUFD-2#PBF - IO-Link Transceiver with Integrated Buck Regulator and LDO | Analog Devices
The Analog Devices LT3669EUFD-2#PBF is an IO-Link transceiver with an integrated step-down switching regulator and low-dropout linear regulator, designed for industrial interface applications and housed in a 28-pin QFN package. The LT3669-2 version supports an external catch diode and up to 300 mA switching-regulator load current according to the Analog Devices product page. The device combines one IO-Link transmitter and one receiver with wake-up detection and a programmable power-on reset timer, reducing the need for separate interface and power-management circuitry. An IO-Link transceiver is a specialized industrial interface IC that connects compatible sensors and actuators to a point-to-point communication link. The LT3669 combines this interface function with power conversion, placing the component in the broader hierarchy of industrial interface IC, transceiver, power-management IC, and semiconductor. Its integrated regulator can supply the connected IO-Link device while the transceiver handles wake-up, communication, and fault-related interface behavior. Key features identified in the verified Analog Devices material include one transmitter and one receiver, a 7.5 V to 40 V supply range, and a -40°C to +125°C operating-temperature range for the LT3669 comparison result. The LT3669-2 uses an external catch diode rather than the integrated catch diode used in the LT3669, making the external-diode distinction important when comparing versions. The manufacturer describes the LT3669 family as recommended for new designs. The switching-regulator and LDO architecture can simplify industrial sensor or actuator boards by reducing external power-conversion component count. The programmable power-on reset timer supports controlled startup sequencing, while wake-up detection helps the system respond to connected-device activity. Current limit and transmitter slew rate are externally adjustable according to the manufacturer datasheet, allowing board-level optimization for the intended interface load and cable environment. Typical applications include IO-Link sensors, proximity and position sensors, industrial actuators, factory automation equipment, and distributed industrial control systems. The wide 7.5 V to 40 V supply range is relevant for 24 V industrial environments, while the integrated regulator architecture is useful where board space and component count matter. The exact external diode, capacitor, resistor, and layout requirements must follow the Analog Devices datasheet. When designing a board around the LT3669EUFD-2#PBF, confirm the external catch-diode selection, regulator compensation, output capacitance, and exposed-pad thermal implementation against the manufacturer guidance. Keep sensitive communication and power-return paths short, and provide adequate copper area for the 28-QFN package. Verify the selected sensor or actuator’s IO-Link current, wake-up behavior, and electrical timing before finalizing the power budget. This page consolidates the verified manufacturer and distributor information, distinguishes the LT3669 and LT3669-2 external-diode distinction, and provides design-oriented guidance. Current pricing and availability remain distributor-dependent and should be checked for the exact suffix and order quantity.
LT3669EUFD-2#TRPBF - IO-Link Transceiver with Dual Regulators
The Analog Devices LT3669EUFD-2#TRPBF is a 1/1 IO-Link industrial transceiver with an integrated step-down switching regulator and low-dropout regulator, housed in a 28-lead 4 mm by 5 mm QFN package. The verified product data identifies the device for surface mounting and reel-and-tape handling, with an operating temperature range of -40°C to 125°C. Its integrated power architecture supports the sensor-side requirements of IO-Link industrial connections while reducing the number of external supply components. An IO-Link transceiver is an interface IC that connects a microcontroller or PLC-side controller to an industrial point-to-point sensor or actuator link. IO-Link adds standardized digital communication and wake-up or power-control capabilities beyond a conventional simple sensor output. The LT3669 family combines that physical-layer interface with power-conversion functions, placing the transceiver, switching regulator, and LDO in one package. Verified features include 1/1 transceiver operation, IO-Link functionality, integrated step-down regulation, integrated LDO operation, wake-up detection, and a programmable power-on reset timer for the LT3669 family. The Analog Devices LT3669-2 is listed for up to 300 mA load current and requires an external catch diode, whereas the LT3669 variant integrates the catch diode and is listed for up to 100 mA load current. The 28-QFN (4x5) exposed-pad package is designed for surface-mount assembly and can provide a compact solution where both signal interface and local power conversion are required. The exposed pad also supports thermal conduction into the PCB, although actual thermal performance depends on copper area, board construction, ambient temperature, and load. Use the manufacturer datasheet for pin functions, recommended external components, electrical limits, timing, and layout details before finalizing a design. Typical applications include IO-Link sensors, industrial proximity and level sensors, factory automation equipment, PLC-connected actuators, and other 24 V industrial fieldbus nodes. The LT3669EUFD-2#TRPBF is most appropriate when a compact 28-QFN footprint, integrated regulators, and the LT3669-2 external-catch-diode architecture fit the system specification. Design attention should focus on correct pin mapping, regulator stability, catch-diode selection, exposed-pad thermal management, and separation between sensitive communication traces and switching-power paths. The verified distributor record identifies the part as a 28-QFN (4x5) IO-Link transceiver, but detailed application limits and package dimensions must be confirmed from the official Analog Devices documentation. This product data combines the verified manufacturer and distributor identity, package information, family-level functional description, commercial source links, and practical design guidance into an engineering-oriented reference for IO-Link transceiver and power-management design.
LT3669HUFD#PBF - 40V IO-Link Interface | Analog Devices
The Analog Devices LT3669HUFD#PBF is an industrial IO-Link transceiver with integrated 16 V step-down and 150 mA LDO functions, operating from a 7.5 V to 40 V supply in a 28-pin QFN package. It combines one IO-Link physical-layer channel, protected line-driver outputs, wake-up detection, and a programmable power-on reset timer. The verified product information identifies ±60 V cable-interface protection and rugged line drivers for industrial sensor and actuator cabling. An IO-Link transceiver is an interface IC that connects a microcontroller or sensor hub to an industrial point-to-point cable while combining digital communication and power delivery. In the hierarchy, the LT3669 is an IO-Link interface transceiver with integrated DC-DC converter and LDO. That integration reduces the number of separate supply blocks needed at a remote industrial sensor, actuator, or factory I/O node while retaining communication and power management in one device. The main feature set includes compatibility with COM1, COM2, and COM3, operation from 40 V, a 16 V step-down switching-regulator output, an integrated 150 mA low-dropout regulator, and ±60 V cable-interface protection. Wake-up detection supports systems that must detect activity on a connected cable. A programmable power-on reset timer provides controlled startup behavior for downstream circuitry, which is useful when load power must become valid only after timing requirements are met. Technically, the part combines three functional blocks in one surface-mount device: an IO-Link physical layer, a step-down switching regulator, and an LDO. The integrated supply architecture is especially useful in industrial systems where a higher-voltage bus powers a lower-voltage sensor. Its stated −40 °C to 150 °C operating range for the H-grade comparison result broadens environmental suitability, but designers should confirm all limits and derating requirements against the manufacturer datasheet before release. Typical applications include IO-Link sensor masters, proximity and photoelectric sensors, industrial actuator interfaces, factory automation equipment, remote I/O modules, and motor or process-control systems. The single-transceiver configuration is appropriate when one cable segment must carry IO-Link data while receiving local regulated power. Design the printed-circuit board with short, protected cable-side traces and place input, switching-regulator, and LDO capacitors according to the manufacturer layout guidance. Validate startup sequencing, exposed-pad thermal performance, surge operation, and fault behavior across the complete industrial supply and cable transient range. This page consolidates verified manufacturer and distributor information, documented alternatives, interface functions, and design cautions into a procurement-oriented engineering reference without inferring unverified electrical or pin-level details.
LT3669HUFD#TRPBF - Integrated IO-Link Power | Analog Devices
The Analog Devices LT3669HUFD#TRPBF is a single-channel industrial IO-Link transceiver with an integrated step-down switching regulator and low-dropout linear regulator, housed in a 28-pin QFN package with an exposed pad. The verified product data identifies a 4 mm by 5 mm package, while detailed operating, current, voltage, timing, and pin-function values were not included in the supplied records and must be confirmed in the manufacturer datasheet. An IO-Link transceiver is a specialized industrial interface that combines a physical-layer data channel with sensor or actuator support circuitry. This device additionally manages local power requirements, making it useful when an IO-Link node needs both communications and regulated power without using separate power-conversion stages. In system terms, it belongs to the interface-IC hierarchy while also incorporating DC-DC converter and linear-regulator functions. The LT3669 family is described by Analog Devices as an industrial transceiver with an integrated step-down regulator, LDO, wake-up detection, and a programmable power-on reset timer. The transmitter current limit and slew rate are externally adjustable, allowing the designer to tune output behavior for the connected IO-Link master, cable, load, and application timing. These functional details distinguish it from a basic digital line-driver or receiver. The LT3669 family is available in LT3669 and LT3669-2 versions, with LT3669-2 identified by the manufacturer as recommended for new designs. The supplied distributor record confirms that the target is supplied in a 28-QFN 4 mm by 5 mm surface-mount package. The exposed thermal pad should be connected according to the datasheet land pattern and thermal recommendations rather than treated as an unused pin. Typical uses include industrial IO-Link sensor interfaces, factory automation nodes, proximity and light-sensor links, actuator connections, and compact industrial control modules. The integrated regulators can simplify power partitioning, while the transceiver supports communication between a master and an IO-Link-compatible peripheral. Actual operating limits and timing must be checked against the complete datasheet before design release. For robust implementation, preserve the recommended input and output capacitors, follow the exposed-pad land pattern, validate adjustable current-limit and slew-rate settings, and check reset or wake-up timing against the system power sequence. This page combines verified manufacturer and distributor information with explicit data-gap markers rather than estimating electrical performance. This page consolidates verified sourcing, package information, lifecycle guidance, application context, and replacement guidance that are not consolidated in a raw distributor listing. LT3669 family options are distinguished carefully, while unverified competitor equivalents are excluded.
LT3669HUFD-2#PBF - Integrated IO-Link Interface | Analog Devices
The Analog Devices LT3669HUFD-2#PBF is an industrial IO-Link transceiver with an integrated step-down switching regulator and low-dropout linear regulator, supplied in a 28-lead 4 mm by 5 mm plastic QFN package. The verified product information identifies its interface supply range as 7.5 V to 40 V. The LT3669-2 version supports a switching-regulator load current up to 300 mA and requires an external catch diode, unlike the base LT3669 version, which integrates the catch diode and supports up to 100 mA. An IO-Link transceiver is a specialized interface IC that connects an industrial sensor or actuator to a point-to-point IO-Link master. It combines the physical communication interface with local power-management functions, reducing the number of separate components required at the sensor end of an industrial link. This device also includes wake-up detection and a programmable power-on reset timer for managed sensor power behavior. Key features include the integrated step-down regulator, integrated LDO, IO-Link communication, wake-up detect, programmable power-on reset, and operation from a 7.5 V to 40 V interface supply. The LT3669-2 configuration is intended for designs requiring the higher 300 mA switching-regulator load capability. Its 28-QFN package is compact but requires careful layout and exposed-pad thermal management. According to the manufacturer product page, the LT3669 and LT3669-2 are recommended for new designs. The manufacturer also identifies the LT3669-2 as requiring an external catch diode, making circuit implementation distinct from the original LT3669. The available verified source set does not provide a complete electrical limit table, pin-by-pin mapping, compliance declarations, or pricing tiers beyond the manufacturer's listed starting price. Typical uses include proximity sensors, photoelectric sensors, industrial actuators, decentralized IO-Link sensor nodes, factory automation equipment, and other 24 V industrial sensing systems. The local regulators can power sensor electronics while the transceiver handles wake-up communication with the IO-Link master. When designing the circuit, follow the manufacturer datasheet for the external catch diode, inductor, capacitors, exposed-pad layout, and decoupling values. Treat the 4 mm by 5 mm QFN thermal pad as a heat-spreading structure and verify copper area, via count, and temperature rise against the actual regulator dissipation. This page combines verified manufacturer and distributor information with replacement evidence, interface guidance, and design cautions that are not consolidated on a basic distributor listing. It separates confirmed LT3669-2 differences from specifications that still require the complete datasheet or design-specific validation.
LT3669HUFD-2#TRPBF IO-Link Transceiver | Analog Devices
The Analog Devices LT3669HUFD-2#TRPBF is a single-transceiver industrial IO-Link interface IC with an integrated step-down switching regulator and low-dropout regulator (LDO), supplied in a 28-QFN package measuring 4 mm by 5 mm. The verified product data identifies it as a 1/1 IO-Link transceiver, while the manufacturer describes the LT3669-2 family as an industrial interface solution that supports wake-up detection and a programmable power-on-reset timer. An IO-Link transceiver is a specialized industrial interface device that combines a physical-layer communication channel with sensor and actuator support. IO-Link systems use point-to-point industrial connections for communication and power between a master and compatible sensors or actuators. The LT3669-2 integrates that interface function with local power conversion, reducing the number of separate supply blocks in an industrial sensor circuit. The LT3669-2 differs from the base LT3669 in its external power-path requirements. According to the manufacturer product page, the LT3669 integrates the catch diode and supports load current up to 100 mA, whereas the LT3669-2 requires an external catch diode and supports load current up to 300 mA. This distinction makes the -2 version appropriate when the local regulator output must deliver more current, provided the external diode and associated layout requirements are implemented correctly. Wake-up detect functionality helps the interface recognize activity on the connected line, while the programmable power-on-reset timer provides a defined startup delay for system sequencing. These features are relevant to industrial sensors where deterministic initialization, controlled sensor energization, and robust point-to-point communication are required. The integrated step-down regulator and LDO can support local sensor-power and interface-power requirements when the board-level voltage plan and thermal limits are properly designed. Typical IO-Link applications include proximity sensors, photoelectric sensors, pressure and temperature sensing modules, industrial actuator interfaces, and factory-automation equipment. The single-transceiver arrangement is particularly useful for compact sensor nodes that require a communication interface and regulated auxiliary power without a separate communications transceiver. Layout and power design remain critical. Place the catch diode and energy-storage components exactly as required by the manufacturer application guidance, and verify the exposed-pad thermal path when the 300 mA version operates near its maximum documented load. The package designation uses a QFN footprint, so the PCB land pattern, exposed-pad soldering, and pin numbering should be checked against the manufacturer datasheet before release to manufacturing. This product page combines verified distributor and manufacturer information with engineering guidance for IO-Link and industrial sensor designs.
LT3669IUFD#PBF - IO-Link Transceiver with Buck/LDO | Analog Devices
The Analog Devices LT3669IUFD#PBF is an industrial IO-Link transceiver with an integrated step-down switching regulator, a low-dropout linear regulator, wake-up detection, and a programmable power-on reset timer, housed in a 28-pin QFN exposed-pad package. The verified source data confirms a 7.5 V to 40 V supply range and an operating temperature range of -40 C to +125 C. It combines sensor-interface and local power functions in one device. An IO-Link transceiver is the interface between an industrial sensor or actuator and a point-to-point industrial communications link. The LT3669 provides the physical signaling path while integrating power-conversion functions for the connected equipment. This combination can reduce the number of discrete interface and power-supply components in sensor modules, compact control blocks, and industrial field devices. The LT3669 is designed around three functional blocks identified by Analog Devices: an IO-Link transceiver, a step-down regulator, and an LDO. It also includes wake-up detect functionality and a programmable power-on reset timer. The transmitter current limit and slew rate are externally adjustable, allowing the application to tune communication behavior and power-delivery characteristics. The supplied manufacturer information also identifies the LT3669 family as recommended for new designs. Typical industrial uses include IO-Link sensor interfaces, proximity and limit sensors, industrial actuator modules, factory automation equipment, and embedded control systems that need local power alongside a communications transceiver. The integrated architecture can simplify board partitioning, but each rail and signal path still requires careful decoupling, grounding, protection, and thermal review. The exact output-current, switching-frequency, dropout, and timing limits are not present in the supplied verified excerpts and must be confirmed from the complete manufacturer datasheet before production design. When laying out this QFN device, place input, output, and interface decoupling components close to their associated pins, connect the exposed pad to the appropriate thermal and ground plane, and keep sensitive signal routing away from switching-current paths. Verify wake-up and power-on reset timing with the complete electrical specification. The product is available in a tube package according to the verified distributor listing. This product page combines the verified Analog Devices product information, distributor package and sourcing references, and practical design guidance for engineers evaluating the LT3669 in IO-Link systems.
LT3669IUFD#TRPBF - IO-Link Transceiver with Buck/LDO
The Analog Devices LT3669IUFD#TRPBF is an industrial IO-Link transceiver integrating a step-down switching regulator, a low-dropout linear regulator, wake-up detection, and a programmable power-on reset timer. The device is supplied in a 28-pin QFN exposed-pad package measuring 4 mm by 5 mm, combining sensor-interface and local power functions in one device. An IO-Link transceiver is an interface IC that connects industrial sensors and actuators to a point-to-point communications link. It combines physical-layer signaling with supporting functions that help the connected equipment operate reliably in factory automation, sensors, and industrial control systems. The LT3669 belongs to the transceiver and interface-IC hierarchy, while its integrated regulator sections place it at the intersection of communications, power management, and industrial automation. The verified manufacturer description identifies a single-transmitter, single-receiver industrial interface with an integrated step-down regulator and LDO. Wake-up detect functionality supports sensor activation, while the programmable power-on reset timer provides a defined startup delay. The transmitter current limit and slew rate are externally adjustable, allowing the interface behavior to be matched to the wiring, capacitance, and protection requirements of a particular sensor or actuator. Combining the IO-Link physical interface, switching regulator, and LDO can reduce the number of discrete power-support components in a compact sensor design. It is particularly relevant where a sensor needs both a communication link and local regulated power. The integrated regulators also require careful layout because switching-node, analog-ground, and exposed-pad connections must be managed according to the manufacturer datasheet. Typical uses include industrial proximity and process sensors, actuator modules, factory automation equipment, and IO-Link-compatible control systems. The 28-QFN exposed-pad package supports compact placement but requires a controlled PCB land pattern and adequate thermal copper. Design engineers should verify the complete electrical limits, recommended external components, pin names, and application circuit from the official Analog Devices datasheet before production release. This page consolidates the verified manufacturer and distributor information for the LT3669IUFD#TRPBF, identifies the available family alternatives, and highlights practical package and selection considerations. For pricing, use the listed distributor references as of 2026-10-23 and confirm live stock, lead time, and configuration before purchasing.
LT3669IUFD-2#PBF - 40V IO-Link Transceiver | Analog Devices
The Analog Devices LT3669IUFD-2#PBF is an industrial IO-Link transceiver with an integrated step-down switching regulator and low-dropout regulator, a 7.5V to 40V operating range, and support for load currents up to 300mA, all in a 28-QFN surface-mount package. An IO-Link transceiver is an interface IC that connects sensors and actuators to an industrial point-to-point communication link. It combines physical-layer signaling with device power delivery, allowing one integrated module to handle both command communication and a regulated supply. The IO-Link transceiver category sits below industrial interface ICs, while the integrated switching and linear regulators place this device within broader industrial power-management and sensor-interface systems. The LT3669-2 variant supports a 300mA regulator load, whereas the LT3669 integrates a catch diode for operation up to 100mA and the LT3669-2 requires an external catch diode. Wake-up detection and a programmable power-on reset timer support robust industrial sensor behavior. Adjustable transmitter current limit and slew rate provide additional control over physical-layer signal behavior and system integration. The integrated power architecture reduces the number of separate supply components required by an IO-Link sensor module. Its step-down regulator produces a lower sensor-side voltage from the industrial input rail, while the LDO provides a clean regulated output where required. The manufacturer identifies LT3669 and LT3669-2 as being recommended for new designs, making them relevant to current industrial sensing and factory-automation platforms. Typical uses include proximity sensors, photoelectric sensors, industrial actuator interfaces, factory automation equipment, and IO-Link masters or sensor modules operating from protected industrial supplies. The device is particularly useful when the interface must support communication and regulated sensor power in one compact package. Designers should follow the datasheet exactly for the external catch diode, inductor, capacitors, current-limit setting, slew-rate setting, and wake-up or reset configuration. The external diode and regulator layout directly affect reliability, efficiency, and emissions, so PCB layout should follow the manufacturer’s recommended application circuit rather than relying on generic regulator guidance. This page combines verified manufacturer and distributor information, same-package alternatives, interface distinctions, pricing references, and practical engineering guidance. It also separates verified LT3669-2 facts from specifications that still require direct datasheet confirmation.
LT3669IUFD-2#TRPBF - IO-Link Transceiver | Analog Devices
The Analog Devices LT3669IUFD-2#TRPBF is an industrial IO-Link transceiver integrating one transmitter, one receiver, a step-down switching regulator, and a low-dropout regulator in a 28-pin QFN package. It supports a 7.5 V to 40 V supply range and operates from -40°C to +125°C. The -2 variant supports up to 300 mA step-down load current and requires an external catch diode, while the related LT3669 integrates the catch diode for operation up to 100 mA. An IO-Link transceiver is an industrial sensor-interface device that connects compatible sensors, actuators, and master ports over an IO-Link communication link. In the signal path, the integrated receiver detects and conditions incoming IO-Link data, while the transmitter drives the output. The device also provides wake-up detect functionality and a programmable power-on reset timer, reducing the need for separate interface and supervisory circuitry. The most distinctive feature is integration of an IO-Link transceiver with local power conversion. The step-down regulator supplies a lower-voltage rail for sensor or actuator electronics, while the LDO provides a low-dropout output from that rail. In the LT3669IUFD-2#TRPBF, external rectification is required, and the supported switching-regulator load is up to 300 mA. The transmitter current limit and slew rate are externally adjustable, allowing engineers to tune output behavior for a particular line, load, or electromagnetic-compatibility requirement. Operation from -40°C to +125°C suits industrial automation, factory sensors, actuator nodes, and equipment operating across wide temperature ranges. A 40 V maximum supply also provides headroom above conventional 24 V industrial buses, although system transients still require suitable protection. The 28-QFN exposed-pad package is intended for surface-mount assembly and benefits from a properly designed ground and thermal layout. Design attention should focus on the required external catch diode, regulator compensation or output capacitors specified by the manufacturer, exposed-pad soldering, and IO-Link line protection. Because the -2 and non--2 LT3669 versions differ in their integrated catch-diode arrangement and supported regulator load, verify the exact schematic before substitution. The product page identifies the LT3669-2 as recommended for new designs. This page combines verified manufacturer and distributor information with practical selection guidance, function-level application analysis, and explicit data gaps for unverified electrical details. Engineers should consult the complete manufacturer datasheet before setting operating voltages, timing, compensation, current limits, or protection networks.
LT3960EMSE#PBF - 400kbps I2C-to-CAN Transceiver | Analog Devices
The Analog Devices LT3960EMSE#PBF is a robust 400kbps I2C-to-CAN physical-layer transceiver with one transmitter and one receiver, protected against overvoltage line faults, and supplied in a 10-lead MSOP exposed-pad package. It supports a 60V power-supply range, a selectable internal 3.3V regulator or 5V bus-voltage operation, and extended CAN-compatible common-mode reception. An I2C-to-CAN transceiver is an interface IC that bridges a logic-level I2C connection and a differential, fault-tolerant CAN physical bus. This bridge belongs to the CAN interface hierarchy and allows a single-master I2C bus to communicate across noisy or electrically harsh cable distances where direct I2C wiring would be unsuitable. One LT3960 is normally placed near the I2C master, while another device near the remote CAN endpoint completes the link. Key verified features include communication at up to 400kbps, protection from CAN line overvoltage faults, operation from a 60V power-supply range, and the option to use the internal 3.3V regulator or a 5V bus voltage. The CAN-compatible differential receiver has a common-mode range of ±25V or ±36V depending on VCC. These characteristics support reliable separation between sensitive local electronics and a remote, high-noise bus. The LT3960 converts SCL and SDA activity into equivalent differential CAN-bus behavior while permitting bidirectional communication. Its CAN physical layer is designed for robust links, but system designers must still provide correct termination, grounding, surge protection, and decoupling. The exposed pad improves heat transfer, although actual self-heating depends on supply voltage, bus state, and ambient conditions. Typical uses include industrial remote I2C monitoring, building-control equipment, factory sensor links, test systems, and CAN-connected data-acquisition modules. The LT3960 is particularly useful when an embedded controller has an I2C master port but the system requires a longer, noise-isolated connection to remote equipment. The principal design consideration is preserving interface timing and logic levels across the transceiver pair. Follow the manufacturer data sheet together with the EVAL-LT3960-AZ user guide, and verify that the selected supply and common-mode conditions match the installed system. This page consolidates verified manufacturer information, distributor pricing, sourcing links, and application guidance for engineers evaluating the LT3960EMSE#PBF.
LT3960EMSE#TRPBF - 400kbps I2C-to-CAN Transceiver | ADI
The Analog Devices LT3960EMSE#TRPBF is a 400 kbps I2C-to-CAN physical-layer transceiver with bidirectional data communication, 60 V power-supply range, and a 10-lead MSOP exposed-pad package. It is designed to extend a single-master I2C bus through harsh or noisy environments while preserving communication between SCL and SDA signals. A CAN transceiver is an interface circuit that converts logic-level signals into a physical differential bus and receives bus states back into logic-level signals. The LT3960 uses the CAN physical layer as a rugged transport mechanism for an I2C-style single-master bus. Its protected line-fault inputs, extended common-mode capability, and internal regulator support integration where the I2C master and remote bus-powered nodes are separated by substantial cable distance or electrical noise. Key verified features include operation up to 400 kbps, compatibility with 3.3 V and 5 V systems, protection from overvoltage line faults, and an internal 3.3 V regulator or selectable 5 V bus-voltage operation. Bidirectional communication is permitted, allowing data signals to flow between the host-side interface and the bus-side transceiver. The manufacturer identifies the LT3960EMSE as a 10-lead MSOP package, while the orderable LT3960EMSE#TRPBF suffix identifies the leaded RoHS-compliant packaging configuration. The device is supplied from a single wide-ranging input supply, reducing system power-tree complexity when the interface must operate near higher-voltage industrial or automotive-related equipment. Its physical-layer approach is intended for extending a bus rather than replacing a conventional CAN controller. Designers should account for the MSOP exposed pad, line termination, common-mode environment, cable length, grounding, and the different logic and bus-side voltage domains. Typical applications include industrial sensor links, remote instrumentation, building-automation equipment, noisy factory communication, and embedded systems that need I2C traffic to cross an electrically hostile cable. The verified manufacturer page specifically references the EVAL-LT3960-AZ evaluation circuit, which is useful for validating board routing, bus termination, and system behavior. For PCB design, place the transceiver near the cable connector and preserve a controlled return path to reduce common-mode conversion. Confirm the exposed-pad connection and thermal pad layout against the manufacturer package drawing. Do not substitute a conventional CAN transceiver without checking logic-side voltage, timing, fault behavior, and pin compatibility. This page combines the verified Analog Devices product information with practical interface-design guidance. It distinguishes the LT3960 from ordinary CAN controllers, emphasizes the 400 kbps single-master I2C role, and identifies which electrical details must be confirmed in the datasheet before layout release.
LT3960JMSE#PBF - 400kbps I2C-to-CAN Transceiver | ADI
The Analog Devices LT3960JMSE#PBF is a single I2C-to-CAN physical-layer transceiver supporting I2C communication up to 400 kbps, supplied from a 3.3 V or 5 V range, and packaged in a 10-pin MSOP with exposed pad. It converts one I2C master bus into differential CAN-compatible signaling across a long or noisy interconnect, providing one driver and one receiver. An I2C-to-CAN transceiver is an interface IC that bridges the short-range, controller-oriented I2C bus and the CAN physical layer. It extends a single-master I2C connection through a harness or harsh electrical environment while preserving a familiar logic-side interface. In the system hierarchy, this device is an interface transceiver within CAN interface ICs and broader wired-communication semiconductors. The verified information identifies 400 kbps I2C communication, a 60 V power-supply range, and internal 3.3 V operation. It also confirms protection from overvoltage line faults. The LT3960 family is intended for industrial communication, and the manufacturer states that LT3960J performance is guaranteed from -40°C to 150°C operating junction temperature; the broader datasheet also describes -40°C to 125°C operating-temperature assurance. The receiver is a CAN-compatible differential receiver with a wide common-mode range of plus or minus 25 V or plus or minus 36 V, depending on VCC. In a typical two-device arrangement, one LT3960 is placed near the I2C master and the other near the distant endpoint. This arrangement keeps sensitive logic connections local while using the CAN physical layer for the longer link. Typical uses include industrial sensor links, factory automation equipment, building-control modules, remote I/O nodes, and embedded systems that need an I2C master to communicate across a longer cable. Use the exposed-pad land pattern for thermal and electrical performance, and observe the manufacturer's pin and layout guidance. A key design consideration is that the LT3960 is a transceiver, not a general-purpose CAN controller. The connected microcontroller must generate the appropriate bus behavior and protocol, while the LT3960 provides the physical signaling interface. Verify voltage ratings, termination, grounding, and fault conditions against the manufacturer datasheet. This page combines verified distributor and manufacturer information with package, application, and design guidance intended to support faster sourcing and design review.
LT3960JMSE#TRPBF - 400kbps I2C/CAN Transceiver | Analog
The Analog Devices LT3960JMSE#TRPBF is a half-duplex I2C-to-CAN physical-layer transceiver rated for data rates up to 400 kbps, supplied in a 10-pin MSOP with an exposed pad. It operates from 3.3 V or 5 V, supports I2C communication over harsh or noisy environments, and provides CAN-compatible differential signaling with protection against overvoltage line faults. The part is intended for remote sensing, industrial control, and distributed I2C-to-CAN gateway designs. An I2C-to-CAN transceiver is an interface IC that translates the logic-level clock and data signals of a single-master I2C bus into a differential CAN physical-layer signal. The LT3960 extends that bus beyond a local circuit board, using two devices in a typical system: one connects near the I2C master, while the other provides the remote endpoint. This architecture preserves the familiar I2C host interface while gaining the noise immunity and fault tolerance associated with CAN cabling. Key verified features include operation up to 400 kbps, compatibility with both 3.3 V and 5 V systems, a 60 V power-supply range for the CAN-side protection circuitry, and internal 3.3 V regulation. The receiver has a wide common-mode range of ±25 V or ±36 V depending on VCC. The LT3960 is designed for extended temperature-grade industrial environments; the manufacturer states that LT3960J performance is assured over a -40 °C to 150 °C operating junction range. The exposed-pad MSOP package helps remove heat from the device when the CAN-side dissipation is significant. Placement should keep the transceiver close to the connector or cable entry, while the I2C master and local digital ground connections should remain isolated from the harsher CAN return path as appropriate. CAN termination and common-mode behavior must be evaluated for the complete bus rather than inferred from the IC alone. Typical applications include remote sensor nodes, industrial monitoring links, building-control gateways, actuator networks, and embedded systems that need to extend I2C across a noisy cable. The 400 kbps rate is suitable for moderate-speed control and telemetry traffic, not high-bandwidth data transfer. The device should be selected only when its CAN common-mode, fault-protection, supply, and thermal characteristics match the target bus. The most important design check is system-level compatibility: verify the 3.3 V or 5 V I2C levels, cable length and topology, termination strategy, grounding, and the maximum junction temperature. The LT3960’s protected CAN interface can simplify remote-bus deployment, but it does not eliminate the need for correct bus protection and wiring. This page combines verified manufacturer and distributor information with application guidance, comparison parameters, and practical implementation notes. Pricing and availability references are current only as of 2026-10-23; verify distributor stock and delivery terms before ordering.
LTC1067IGN - Dual Switched-Cap Filter 20kHz | Analog Devices
The Analog Devices LTC1067IGN is a rail-to-rail, very low noise universal dual switched-capacitor filter building block that delivers two independent 2nd-order filter sections with cutoff frequencies up to 20 kHz in a 16-pin SSOP (narrow) package. Each filter section uses external resistors and the internal switched-capacitor architecture to implement low-pass, band-pass, notch, and all-pass responses. The device targets signal-conditioning applications where small footprint, low noise, and high dynamic range are mandatory. What is a switched-capacitor filter? A switched-capacitor filter is an active filter topology that emulates a resistor using a capacitor switched at a clock frequency, allowing precise, monolithic filter implementations without external precision capacitors. Within the broader IC taxonomy, switched-capacitor filters fall under active filters -> analog filters -> signal conditioning -> analog ICs -> semiconductors. They are preferred over continuous-time active filters for applications requiring tight frequency accuracy relative to an external clock. Key features include a clock-to-cutoff ratio of 100:1 (the LTC1067-50 variant uses 50:1), rail-to-rail input and output swing that maximizes dynamic range on low-voltage supplies, 60 dB signal-to-noise ratio, and a low noise floor suitable for instrumentation-grade signal chains. Each second-order block uses five external resistors, allowing independent configuration as a low-pass, high-pass, band-pass, or notch stage. Two blocks can be cascaded externally to build a 4th-order filter. The architecture is built on Analog Devices' precision switched-capacitor technology with CMOS analog switches and on-chip clock generation. The clock input accepts a TTL or CMOS external source, and the internal master clock divider sets the filter cutoff, simplifying design-in when synchronization to a system clock is required. The dual-block topology also enables independent filtering of two channels, such as stereo audio or dual-axis sensor signals, in a single IC. Typical applications include antialiasing filters for 16-bit ADCs, smoothing filters for DAC outputs, dual-channel audio crossover networks, instrumentation low-pass filters in data acquisition systems, and ultrasonic transducer front-end filtering in medical imaging. The wide dynamic range makes the LTC1067IGN particularly attractive when the upstream signal already spans most of the supply range. When designing with this part, plan clock-to-cutoff ratio carefully: the cutoff frequency equals fCLK/100 (or /50 for the -50 variant). A stable, low-jitter clock is essential - phase noise on the clock translates directly into passband distortion. Keep clock traces short and away from analog signal traces to prevent coupling. This page synthesizes distributor pricing, pin-compatible drop-in alternatives, and practical design notes that go beyond the manufacturer datasheet's typical application circuits.
LTC202CJ - Micropower Quad CMOS Analog Switch | Analog Devices
The Analog Devices LTC202CJ is a micropower, low-charge-injection quad CMOS analog switch packaged in a 16-pin CERDIP. The device is designed for low-power signal routing and supports single or positive-and-negative supply operation. Its four independently controlled switches support analog multiplexing, demultiplexing, sampling, and signal-routing systems where low power consumption and controlled switching behavior are important. What is an analog switch? An analog switch is an integrated semiconductor switch that routes electrical signals between terminals under digital control. A quad CMOS analog switch contains four switch elements, generally allowing several analog sources to be selected or routed to a common output. The LTC202CJ belongs to the analog-switch hierarchy, which includes multiplexers, demultiplexers, and interface ICs used to connect sensors, converters, test equipment, and other signal-chain circuits. According to the manufacturer product page and identified datasheet family, key features include micropower operation, low charge injection, low on-resistance, low leakage, guaranteed break-before-make behavior, and a latch-resistant design. These characteristics make the device suitable for precision analog systems where switching transients, signal attenuation, and power consumption can affect measurement quality. The available data also identifies the LTC202 as a quad CMOS analog-switch family; exact electrical limits and temperature-grade details require the manufacturer datasheet. The CJ package suffix denotes the 16-pin CERDIP package identified in the verified distributor data. Ceramic-DIP construction is commonly used where temperature robustness, mechanical reliability, or legacy industrial and military compatibility matters. The package requires through-hole board layout rather than a surface-mount footprint, so designers should confirm PCB compatibility before substituting or upgrading this part. Typical applications include precision signal selection, instrumentation multiplexing, test and measurement systems, data-acquisition front ends, sample-and-hold signal paths, and low-power analog control systems. The low charge injection helps reduce switching errors in sampled signals, while the low-leakage characteristic supports preserving small signal levels between selection events. For new designs, engineers should verify absolute maximum ratings, recommended supply voltages, on-resistance, charge injection, leakage current, switching time, and electrical performance across temperature using the manufacturer datasheet. A footprint-compatible replacement must also preserve the 16-pin CERDIP pinout and the same enable and control logic. This page summarizes verified distributor and manufacturer information and separates confirmed facts from parameters requiring datasheet review.
LTC221CJ - Micropower Quad CMOS Switch | Analog Devices
The Analog Devices LTC221CJ is a micropower, low-charge-injection, quad CMOS analog switch with onboard data latches, supplied in a 16-CDIP package. It typically dissipates 250 uW from ±15 V supplies and 40 uW from a single 5 V supply. Each device provides four independently latched analog switches, a 65 ohm typical on-resistance, very high off-resistance, and break-before-make switching. These characteristics suit precision signal routing where low power, controlled switching transitions, and direct microprocessor-bus interface matter. An analog switch is a voltage-controlled semiconductor device that routes analog signals between external terminals. The CMOS implementation combines low leakage with nearly symmetric signal behavior, while the data latches retain switch states and reduce external control-line requirements. In the signal-chain hierarchy, the LTC221CJ belongs to the analog-switch and multiplexer class within integrated interface and switching ICs. Verified features include quad CMOS switch architecture, low charge injection, a 65 ohm typical on resistance, very high off resistance, and inherent break-before-make behavior. The onboard latches allow connection to many microprocessor buses. Its micropower operation is particularly useful in battery-powered instrumentation, automated test equipment, data-acquisition systems, and low-leakage measurement front ends where continuously powered switches can dominate standby power. The LTC221CJ supports both bipolar and single-supply operation, as demonstrated by the documented 40 uW dissipation from 5 V and 250 uW from ±15 V. That operating flexibility lets it sit between grounded or bipolar instrumentation and single-rail data-acquisition systems. Exact supply limits, channel capacitance, leakage, charge-injection values, switching times, latch-control levels, and temperature limits are not present in the supplied search data and therefore require confirmation from the manufacturer datasheet before release to production. Typical applications include multiplexed sensor acquisition, programmable gain or filter routing, instrumentation signal switching, automated test equipment, data loggers, and low-power measurement systems. Route only signals within the verified electrical limits, and account for injected charge when sampling sensitive nodes. Because the search evidence does not expose the full pinout, alternatives, or validated cross-references, production substitution must be based on a package and pin-level review rather than functional similarity alone. Place the device near the routed analog signals and keep control traces away from sensitive switch nodes. Use a ground plane and minimize long traces to reduce capacitive coupling and switching transients. Confirm the power architecture, control logic, and package thermal behavior in the datasheet; this page does not infer values that were absent from the verified sources. This product record combines the supplied manufacturer and distributor evidence, documented power and resistance characteristics, application guidance, and explicit validation boundaries. It distinguishes verified data from parameters still requiring datasheet review, avoiding unsupported substitutes while providing practical context for engineers evaluating the LTC221CJ.
LTC2846IG - 3.3V Multiprotocol Transceiver w/ Termination | Analog Devices
The Analog Devices LTC2846IG is a 3-driver/3-receiver multiprotocol transceiver with on-chip cable termination, housed in a 36-pin SSOP (Industrial Grade) package. Operating from a single 3.3V supply, it supports software-selectable protocols including RS232, RS449, EIA530, EIA530-A, V.35, V.36 and X.21, with a 1ku list price starting from $19.21 as of 2026-10-08. An RS-232/RS-422/RS-485 multiprotocol transceiver is a single-chip interface IC that combines multiple line-driver and receiver channels, allowing one hardware design to be reconfigured in software between legacy serial standards. The transceiver family (LTC2844/LTC2845/LTC2846) is typically deployed in DTE or DCE serial port designs where a single physical connector must handshake with many types of legacy equipment, and on-chip termination removes the need for external resistor networks on V.35/V.36/X.21 lines. Key features include 3 drivers and 3 receivers, on-chip cable termination resistors, software-selectable protocol mode via logic pins, integrated 1.2MHz boost switching regulator that converts the 3.3V supply to 5V for V.35/V.36/X.21 driver levels, and TUV Rheinland NET1/NET2/TBR2 certification. The Industrial Grade (-40C to +85C) temperature rating supports telecom and industrial environments, while the SSOP-36 footprint integrates easily into legacy backplane designs. The architecture combines a digital mode-control block, an on-chip boost regulator (1.2MHz), six terminated line drivers/receivers, and charge pumps for RS-232 compliance. This integration reduces the typical discrete BOM of a multiprotocol port from ~40 components to a single IC plus a few passive components. Typical applications include multiprotocol serial ports in WAN routers, telecom DSU/CSU equipment, V.35/V.36/X.21 line cards, industrial serial gateways, and legacy-to-modern serial protocol converters. When paired with the LTC2844 (clock/data transceiver) or LTC2845 (control-signal transceiver) it forms a complete software-selectable DTE/DCE port. For design, ensure the MODE_SELECT pins are driven through low-capacitance logic and that the boost regulator output (V+ pin) is bypassed with at least 10uF ceramic + low-ESR electrolytic to meet V.35 driver rise/fall time specifications.
LTC2850HMS8#TRPBF - 3.3V 20Mbps RS485/RS422 Transceiver | ADI
The Analog Devices LTC2850HMS8#TRPBF is a low-power 3.3V RS485/RS422 transceiver in an 8-pin MSOP package, supporting data rates up to 20 Mbps with half-duplex (1 driver / 1 receiver) operation. The receiver offers one-eighth unit load, enabling up to 256 nodes on a single bus (C-, I-grade), and integrates a failsafe feature that guarantees a logic-high output under floating or shorted input conditions. The driver maintains high output impedance across the entire common-mode range when disabled, ensuring robust multi-node bus behavior. An RS485/RS422 transceiver is a physical-layer interface IC that converts between the differential signaling used on industrial twisted-pair buses and the single-ended logic levels used by UARTs, MCUs, and FPGAs. RS485 supports multipoint half/full-duplex buses over long distances (up to 1200 m), while RS422 is typically point-to-point. The LTC2850 belongs to the broader line transceivers -> interface ICs -> integrated circuits taxonomy and is part of the LTC2850/LTC2851/LTC2852 family from Analog Devices (formerly Linear Technology). Key features include ±15 kV ESD protection on the bus pins (H-grade designation), thermal shutdown, short-circuit protection, and a wide common-mode range that exceeds the RS485 standard requirement. The H-suffix variant specifies the high-ESD rating and the -40 °C to +125 °C automotive temperature grade, making it suitable for harsh industrial and automotive environments. Its 3.3V supply operation minimizes power dissipation in battery-powered and point-of-load regulated systems. The architecture uses a differential line driver with slew-rate-limited outputs to reduce EMI while still delivering 20 Mbps throughput. Internal hysteresis on the receiver inputs combined with the failsafe circuit ensures clean logic transitions even with significant bus attenuation or noise. The device draws low quiescent current, allowing many transceivers to share a single 3.3V rail without thermal concerns. Typical applications include industrial fieldbus networks (Modbus, Profibus DP), building automation (BACnet, RS485 lighting control), automotive body and chassis networks, point-of-sale terminals, and long-cable RS422 point-to-point links. The wide common-mode range also supports harsh electrically noisy environments such as motor drives and factory automation. When designing with this part, place 100 nF decoupling capacitors as close as possible to the VCC pin and provide proper cable termination (typically 120 Ω) at both ends of the bus. The half-duplex topology requires that only one driver be enabled at a time; software UART flow control or hardware direction-control timing must enforce this to avoid contention. This page consolidates distributor pricing, drop-in pin-compatible alternatives, and practical PCB/EMI design notes that go beyond what is typically printed in the manufacturer datasheet, helping engineers shorten design cycles.
LTC2852IMS#PBF - 3.3V 20Mbps RS485/RS422 Transceiver | ADI
The Analog Devices LTC2852IMS#PBF is a low-power, 3.3V full-duplex RS485/RS422 transceiver rated for 20 Mbps signaling and housed in a 10-pin MSOP package. It features a one-eighth unit-load receiver input (supporting up to 256 nodes per bus on C- and I-grade devices), integrated hot-swap capable driver outputs, and a failsafe receiver that guarantees a logic-high output under floating, shorted, or terminated bus conditions. An RS485/RS422 transceiver is a differential line driver/receiver IC that translates between a single-ended UART/logic interface and a twisted-pair differential bus, enabling robust, long-reach, noise-immune communication in industrial, building-automation, and instrumentation systems. The LTC2852 belongs to the broader RS-422/RS-485 interface IC category (sub-category of Interface ICs) within the broader semiconductor power management and signal-chain ecosystem. Its 3.3V supply aligns with modern low-voltage MCUs and FPGAs, eliminating the level shifters required by legacy 5V transceivers. Key features include 3.3V single-supply operation, 20 Mbps data rate, 1/8th unit load (256-node fan-out on C/I grade), integrated hot-swap/tolerant driver outputs that remain high-impedance across the full common-mode range when disabled, low current per package (500 µA typical supply current), and industry-standard RS485/RS422 pinout. The MSOP-10 footprint enables compact node designs typical of multi-drop industrial backbones. Internally, the LTC2852 uses a precision differential line driver with slew-rate-limited edges (for low EMI) and a window-comparator receiver topology that detects 200 mV differential signals as required by TIA/EIA-485. The one-eighth unit-load input impedance reduces bus loading by 8× compared to legacy 1-unit-load parts, allowing more nodes on the same bus without exceeding the 32-unit-load RS485 specification limit. Typical applications include industrial fieldbus networks (Modbus, Profibus DP at 20 Mbps), building automation (BACnet MS/TP, lighting control), point-of-sale peripherals, multi-drop motor controller links, and RS422 point-to-point communication between embedded controllers and sensors. Designers choose the LTC2852 when they need a 3.3V-only transceiver with a small package, robust hot-swap performance, and high node count. When designing with this device, place 100 nF supply bypass capacitors within 5 mm of the VCC pin, use a 100 Ω termination resistor at each bus end, and verify common-mode protection in electrically noisy environments. The #PBF suffix denotes a lead-free, RoHS-compliant finish. This page synthesizes distributor pricing, parametric alternates, and practical design notes that complement - and go beyond - the manufacturer datasheet's nominal spec table.
LTC2862AIS8-2 - ±60V RS485/RS422 Transceiver | Analog Devices
The Analog Devices LTC2862AIS8-2 is a low-power, half-duplex RS485/RS422 transceiver with ±60V fault protection, operating on 3V to 5.5V supplies and housed in an 8-pin SOIC package. It supports two speed grades selectable via part variant: 20Mbps (the -2 suffix denotes a high-speed version) or 250kbps, with 1/1 driver/receiver count. The interface pins withstand ±60V overvoltage faults during all modes of operation including power-down. An RS485/RS422 transceiver is a physical-layer device that converts between a single-ended UART/CMOS logic signal on the microcontroller side and a robust differential signal on the bus side, enabling reliable serial communication over twisted-pair cables at distances up to 1200 meters. RS485 is the de-facto standard for industrial multipoint buses (Modbus RTU, Profibus, DMX512) while RS422 is used for point-to-point high-speed links; the LTC2862 family supports both. Half-duplex means one differential pair is shared between transmit and receive, with direction controlled by a logic pin. Key features include ±60V fault tolerance on the bus pins, IEC 61000-4-2 Level 4 ESD protection (typically 8 kV contact, 15 kV air per the manufacturer's IEC ESD rating), current-limited drivers, thermal shutdown, and a fully balanced differential receiver threshold for low duty-cycle distortion. The 8-pin SOIC package is pin-compatible with legacy LT1785/LT1791 footprints and the original LTC2862 family, enabling direct board replacement. The LTC2862A uses a CMOS process with switched-capacitor charge pump to generate the ±60V fault-tolerant driver supply. The architecture delivers low quiescent current during idle while still maintaining high drive strength during bus arbitration, and the receiver exhibits 250 mV typical hysteresis with a 50 mV worst-case offset to meet TIA/EIA-485-A. Typical applications include industrial fieldbus networks (Modbus, Profibus), solar inverter monitoring, building automation (BACnet), motor control encoder links, and any 3V-5V MCU interface that must survive miswiring, ESD strikes, or transient overvoltage events on long cable runs. The wide 3V-5.5V supply range also supports battery-powered remote sensor nodes. When designing with this device, place 100 nF decoupling close to VCC and use twisted-pair cable with proper termination (120 Ω) at the bus ends. The -2 suffix denotes 20 Mbps high-speed grade; the -1 variant is 250 kbps low-EMI grade - select based on your data rate and EMI budget.
LTC2863IS8-1 - ±60V Fault-Protected RS485/RS422 Transceiver | ADI
The Analog Devices LTC2863IS8-1#PBF is a ±60V fault-protected, 3V to 5.5V supply, full-duplex RS485/RS422 transceiver housed in an 8-pin SOIC (IS8) package. Per the manufacturer datasheet, it integrates one driver and one receiver (1/1), supports data rates up to 20 Mbps, and tolerates ±60V on the bus pins without damage, a level that exceeds the typical RS485 common-mode range of -7V to +12V by a wide margin. A transceiver is a semiconductor device that bridges two distinct electrical interfaces, in this case translating between low-voltage CMOS logic on the controller side and the differential, bus-terminated signaling required by the RS485/RS422 standard. RS485/RS422 transceivers sit inside the broader interface-IC hierarchy: interface IC > line driver/receiver > differential transceiver > RS485/RS422 transceiver. The LTC2863 family is positioned for harsh industrial bus networks where hot-plug events, wiring faults, and surge exposure are routine. Key features include ±60V fault protection on driver outputs and receiver inputs, ±25V HBM ESD protection on the bus pins, 1/8 unit load (up to 256 nodes per bus), current-limited drivers with thermal shutdown, and a fully balanced differential receiver threshold that minimizes duty-cycle distortion. The -1 suffix denotes the full-duplex (no shared DE/RE control timing constraint) pinout variant in the 8-lead SOIC; the -2 variant differs in enable logic. Per the manufacturer datasheet, MP-grade (-55°C to 125°C) and DFN package options are also available in the LTC2863 family. Architecturally, the device combines a differential line driver with a wide-input-range differential receiver, both protected by on-chip TVS-style clamping structures. The 3V-5.5V VCC range allows direct connection to 3.3V or 5V microcontrollers without level shifters, simplifying BOM and reducing board area. Pin compatibility with the LT1785 and LT1791 families (per Analog Devices product page) means existing designs can be ruggedized against field faults with no layout rework. Typical applications include industrial fieldbus networks (Modbus, Profibus, BACnet), building automation, motor drive feedback links, smart-grid metering, and any long-cable RS485 link exposed to installation transients or mis-wiring. The ±60V tolerance protects against accidental AC mains contact on the bus. When laying out the LTC2863IS8-1, keep the bus traces short and matched, place the bus termination at the end nodes, and provide a solid ground plane; the IC's internal fault protection does not replace good EMC practice. Use a 100nF decoupling capacitor close to VCC and add a 10µF bulk capacitor if the supply is shared with switching regulators.