Interface ICs
Subcategories
Products (3,400+)
MAX1480CCPI+ - 250kbps Isolated RS-485/422 | Maxim Integrated
The Maxim Integrated MAX1480CCPI+ is a complete electrically isolated RS-485/RS-422 data-interface transceiver with a 250 kbps maximum data rate, a 4.5 V to 5.5 V supply range, and a 28-pin DIP package. It combines one driver and one receiver in a half-duplex interface, providing a single-side logic supply while galvanic isolation separates the bus side from sensitive equipment. The device is designed for industrial-control networks, building-control systems, automated test equipment, and EMI-sensitive isolated data links. An RS-485/RS-422 transceiver is an interface IC that converts logic-level transmit and receive signals into balanced differential bus signals. The MAX1480 belongs to the broader isolated interface-IC hierarchy, where isolation provides a galvanic barrier between a communication bus and the controlling electronics. This helps protect systems from ground-potential differences and common-mode transients while supporting point-to-point and multidrop RS-485 or RS-422 communication networks. The MAX1480CCPI+ uses a reduced-slew-rate driver to minimize electromagnetic interference and reduce reflected signaling on the bus. Its isolated outputs are stated to meet RS-485 and RS-422 specifications. Because one 5 V supply on the logic side powers both sides of the interface, the system does not require a separate isolated bus-side supply in the intended operating arrangement. The half-duplex architecture supports bidirectional communication over a shared differential pair when the application controls driver and receiver direction. The MAX1480C family is implemented as a hybrid microcircuit in a 28-pin DIP package. The isolated interface integrates the physical-layer transceiver and isolation barrier rather than requiring a discrete optocoupler, transformer, and driver-receiver arrangement. This reduces component count and simplifies the physical isolation implementation, but designers must still account for creepage, isolation boundaries, bus termination, grounding, and protection requirements at the board level. Typical uses include isolated RS-485 links in industrial controllers, HVAC and building-control networks, automated test equipment, local-area networks, and isolated data interfaces operating in EMI-sensitive environments. A 250 kbps data rate is suitable for moderate-speed supervisory, monitoring, and control traffic rather than the highest-speed industrial Ethernet protocols. The 28-pin through-hole DIP package also favors legacy, repairable, and industrial control-board designs. When designing around the MAX1480CCPI+, place the device so its isolation boundary remains clearly defined, connect the logic ground and bus ground to their respective domains, and follow the bus-interface recommendations in the manufacturer datasheet. Termination, protection, and common-mode requirements depend on cable length, topology, and the external transceiver used. This page consolidates verified manufacturer and distributor information, drop-in alternatives, pricing, and practical selection guidance beyond a basic distributor listing.
MAX1480CEPI+ - Isolated RS-485/RS-422 Transceiver, 28-PDIP | Analog Devices
Analog Devices MAX1480CEPI+ is a 1/1 half-duplex transceiver for RS-485 and RS-422 data communications, packaged in a 28-pin DIP (through-hole) package. The device is a complete electrically isolated data interface in a hybrid microcircuit, so the logic side and the bus side are galvanically separated without requiring a separate isolation supply: a single +5 V supply on the logic side powers both sides of the interface. The MAX1480A/B/C family shares one 28-pin DIP footprint, so MAX1480CEPI+ is a pin-compatible member of a mature, widely deployed isolated transceiver line. An isolated RS-485/RS-422 transceiver is a differential line-driver and differential receiver combined with a galvanic isolation barrier. It sits in the interface hierarchy between a host UART or micro-controller and a long, noisy differential cable: interface IC -> line transceiver -> RS-485/RS-422 physical layer -> industrial control network. Isolation protects the host from ground-potential differences and surge events common in building control, HVAC and factory automation networks. Key characteristics of the MAX1480CEPI+ include reduced-slew-rate driver outputs (shared with the MAX1480B and MAX1480C variants) that minimize radiated EMI on the bus, a half-duplex 1/1 driver/receiver arrangement, and an industrial temperature grade in a through-hole rectangular DIP package. Because the C variant is specified for reduced EMI rather than maximum raw data rate, it is a better fit for long cables and electrically noisy installations than the faster MAX1480A. Internally, the MAX1480 series combines a pulse-transformer isolation barrier with driver and receiver circuitry in a single hybrid microcircuit. This topology provides reinforced isolation without optocoupler aging, and the isolation capacitance and creepage are defined by the package geometry rather than by a discrete isolation IC layout, so layout complexity at the board level stays low. Bus-side supply is generated on the isolated side, so no isolated DC-DC module is required at the board level. Typical applications include automated test equipment (ATE), HVAC and building-control networks, industrial-control local area networks, isolated RS-485/RS-422 data interfaces, and isolated transceiver links for EMI-sensitive equipment. The 28-pin through-hole package also suits legacy industrial boards, long-lifecycle instruments and field-upgrade programs where SMD parts are impractical. Design consideration: the isolation barrier means the bus-side ground is electrically separate from logic ground, so the bus-side return must be routed to a dedicated isolated ground plane that joins the shield at a single point. Also verify that the data rate, common-mode range and isolation withstand voltage of your chosen variant match your bus before substituting across the A/B/C grades. This page consolidates manufacturer and distributor data for MAX1480CEPI+, pin-compatible drop-in alternatives from the MAX1480 family, and practical design notes on isolation, grounding and EMI that are not presented together in the original datasheet listings.
MAX1480EACPI+ - 2.5Mbps Isolated RS-485/422 | ADI
The Analog Devices MAX1480EACPI+ is an isolated, half-duplex RS-485/RS-422 transceiver with one driver and one receiver, a 2.5 Mbps maximum data rate, and a 28-pin PDIP package. It operates from a 4.5 V to 5.5 V supply and provides 15 kV ESD protection on the communications interfaces. An isolated RS-485/RS-422 transceiver is a data-interface circuit that transfers digital signals between systems while providing electrical isolation between the host logic and the cable-side network. The MAX1480EACPI+ combines a differential line driver, differential receiver, isolation barrier, fail-safe receiver circuitry, and low-power standby capability. This places it within the transceiver hierarchy of interface ICs, communication ICs, and industrial data-conversion components. The principal benefits are its 2.5 Mbps operating speed, 15 kV ESD protection, isolated outputs, and support for both RS-485 and RS-422 networks. The device is particularly useful where a controller must connect to a long or electrically noisy cable without exposing the local electronics directly to the bus environment. Its integrated isolation also helps suppress ground-potential and common-mode disturbances between connected equipment. MAX1480EA-series devices use unrestricted driver slew rates for higher-speed communication, whereas MAX1480EC-series devices use reduced slew rates to minimize electromagnetic interference and cable reflections at lower data rates. The MAX1480EACPI+ is therefore most appropriate for links requiring the faster 2.5 Mbps capability rather than reduced-slew-rate operation. Its half-duplex arrangement supports a shared bus when only one transmitter is active at a time. Typical applications include automated test equipment, industrial-control networks, building-control systems, local area networks, telecom equipment, and isolated RS-485 or RS-422 data interfaces for EMI-sensitive installations. The 28-pin PDIP package favors legacy through-hole industrial equipment, test systems, and prototype platforms that have been designed around a conventional DIP footprint. For a new PCB, verify the complete pin description and isolation requirements in the manufacturer datasheet before assigning external nodes. Use appropriate bus protection, cable termination, grounding, and isolation barriers at the system level; the integrated 15 kV ESD protection does not remove the need for a sound surge and cabling strategy. This page consolidates the verified electrical ratings, package information, temperature range, and application requirements while adding engineering guidance for bus layout, protection, and component selection. It also identifies a temperature-grade alternative and clearly distinguishes the limits of the available drop-in replacement set.
MAX1480EAEPI+ - Isolated RS-485/RS-422 Transceiver | Analog Devices
Analog Devices MAX1480EAEPI+ is an isolated RS-485/RS-422 data-interface transceiver with one driver and one receiver, a 4.5 V to 5.5 V supply range, and ±15 kV ESD protection. It is housed in a 28-pin plastic DIP package and is intended for isolated, noise-sensitive industrial communication links. An isolated RS-485/RS-422 transceiver is a semiconductor interface that combines differential line-driver and receiver functions with electrical isolation between the logic-side and bus-side circuits. In the hierarchy of electronic components, it is an interface transceiver, then a line driver and receiver, and finally a data-communication semiconductor. The MAX1480EAEPI+ supports both RS-485 and RS-422 networks while separating sensitive logic equipment from the communication cable. Key features include ±15 kV ESD protection on the I/O pins, single-side power isolation, a fail-safe receiver circuit, and low-power standby operation. The 4.5 V to 5.5 V operating supply supports conventional 5 V equipment, while the differential interface helps reject common-mode noise picked up by long cables. The listed operating temperature range is 0°C to +70°C. The MAX1480EAEPI+ is implemented as a complete isolated data interface rather than a simple line transceiver. Its hybrid construction provides both driver and receiver functions on one board, reducing the number of components needed for a bidirectional isolated link. Its 28-PDIP format supports through-hole assembly and straightforward prototype or repair work where a surface-mount isolator is unnecessary. Typical applications include industrial-control networks, building-control networks, automated test equipment, local-area networks, telecom transceivers, and other EMI-sensitive RS-485 or RS-422 links. The isolation barrier can help limit ground-potential and surge-related stress between a host controller and an externally connected bus. For a new design, confirm the transceiver voltage, temperature range, isolation requirements, bus loading, termination strategy, and ESD environment before assigning the DIP footprint. Keep bus-side and logic-side return paths separated according to the manufacturer datasheet, and place protective network components close to the connector when additional surge protection is required. This product page combines the manufacturer family information with distributor specifications, package details, drop-in-family comparisons, and practical interface-design guidance. It helps engineers identify whether the MAX1480EAEPI+ matches a legacy 28-pin isolated RS-485/RS-422 design and where additional qualification is required before substitution.
MAX1480ECCPI+ - Isolated RS-485/RS-422 Transceiver | Analog Devices
Analog Devices MAX1480ECCPI+ is an isolated RS-485/RS-422 data-interface transceiver with one driver and one receiver, ±15 kV ESD protection, and a 4.5 V to 5.5 V supply range. The device is housed in a 28-pin PDIP package. It is designed for industrial communication links that benefit from galvanic isolation and robust protection against electrostatic discharge. An RS-485/RS-422 transceiver is an interface integrated circuit that combines differential line-driver and receiver functions for reliable, noise-resistant data transmission over balanced wiring. The MAX1480ECCPI+ belongs to the broader interface IC hierarchy, where it connects digital logic to industrial communication buses. Its isolated transmitter and receiver reduce conductive noise paths between a host system and an external RS-485 or RS-422 network, improving robustness where ground-potential differences or long cables are concerns. Key characteristics include ±15 kV ESD protection, 4.5 V to 5.5 V operation, one differential driver, one differential receiver, and operation with both RS-485 and RS-422 networks. The 28-pin PDIP package supports through-hole assembly and straightforward inspection or rework. The component is specifically listed for new designs by the manufacturer through the MAX1480E family page. The MAX1480ECCPI+ combines a data-interface transceiver with isolation in a single package. This simplifies board partitioning compared with a non-isolated transceiver plus separate isolation components. Isolation-related timing, creepage, capacitance, and transient-protection details should nevertheless be checked against the complete manufacturer datasheet before finalizing a high-speed or high-noise design. Typical applications include isolated industrial RS-485 links, factory automation equipment, building-control systems, instrumentation, data acquisition, and communications equipment. The differential interface is particularly useful when the bus must tolerate electrically noisy industrial environments while maintaining a clear separation between equipment-ground domains. Designers should preserve the recommended isolation barrier, provide adequate input and output bypassing, route the isolated bus through appropriately protected interfaces, and account for connector-level surge and ESD requirements. The ±15 kV device rating does not eliminate the need for correct system grounding, cable routing, and external protection. This product page consolidates the manufacturer family information, interface characteristics, drop-in family alternatives, and application-specific engineering guidance. It is intended to help designers evaluate the MAX1480ECCPI+ for isolated RS-485 and RS-422 communication systems without relying on isolated snippets from individual listings.
MAX1480ECEPI+ - Isolated RS-485/RS-422 Transceiver | Analog
Analog Devices MAX1480ECEPI+ is an isolated RS-485/RS-422 data-interface transceiver with one driver and four receivers, a 4.5 V to 5.5 V supply range, and a 28-pin PDIP package. The interface provides ±15 kV ESD protection for industrial data lines while galvanic isolation separates the bus side from the logic side. An RS-485/RS-422 transceiver is a physical-layer interface IC that converts digital logic signals into differential bus levels and receives differential bus signals. In the component hierarchy, it belongs to interface ICs and data transceivers, supporting the larger category of communication semiconductors. Its isolation function helps prevent ground-potential differences and common-mode transients from coupling between equipment and a remote bus. The MAX1480ECEPI+ combines one transmit driver with four receive channels in one 28-pin package. Its 4.5 V to 5.5 V operating supply supports conventional 5 V communication equipment. The ±15 kV ESD rating is the principal protection figure specified for exposed data-interface pins, making the device suitable for industrial environments where cables can acquire electrostatic discharge before reaching the equipment. This device is intended for isolated RS-485 and RS-422 links used to connect controllers, sensors, data-acquisition equipment, and remote instrumentation. The single-driver, four-receiver arrangement supports a point-to-multipoint topology when the bus wiring, termination, and grounding strategy are designed correctly. RS-422 favors point-to-point or one-driver configurations, while RS-485 permits multiple drivers under controlled bus management. A principal design consideration is that isolation does not replace correct bus engineering. The data lines still require suitable protection, cable routing, characteristic-impedance control, termination at appropriate endpoints, and common-mode analysis. The ±15 kV ESD capability should also be understood as an interface protection specification rather than a guarantee against every external surge event. Engineers should consult the manufacturer datasheet for the complete pin-description table, isolation ratings, timing, recommended application circuit, and package dimensions before assigning PCB tracks. DIP-28 construction also requires adequate spacing for through-hole assembly and should be checked against the enclosure, connector, and thermal requirements of the final system. This page combines the confirmed interface, supply, protection, package, and topology characteristics with application guidance, a parameter-level comparison, and actionable layout considerations. It is designed to help engineers identify the correct isolated transceiver while separating confirmed device facts from parameters that require review in the manufacturer documentation.
MAX14821ETG+ - IO-Link Device Transceiver, 24-TQFN | Analog Devices
The Analog Devices MAX14821ETG+ is an IO-Link device transceiver in a 24-pin TQFN (4x4 mm) package designed for industrial sensor and actuator networks operating on the 24V IO-Link standard. It supports all IO-Link data rates (COM1/COM2/COM3 at 4.8/38.4/230.4 kbps), operates from a 9V to 36V supply range, and integrates C/Q and DO drivers that are independently configurable for push-pull, high-side (PNP), or low-side (NPN) operation. The device detects the IO-Link C/Q wake-up condition and generates a wake-up signal on the active-low WU output for microcontroller power management. Two internal linear regulators (3.3V and 5V) generate common sensor and microcontroller supply rails from the 24V bus, reducing BOM count in industrial sensor heads. An IO-Link device transceiver is a physical-layer interface IC that bridges a microcontroller (running the data-link layer protocol) to the 24V IO-Link master port on the fieldbus. In the broader taxonomy, it belongs to sensor interface ICs, then industrial interface ICs, then interface ICs, and ultimately the integrated circuits family. IO-Link (IEC 61131-9) is a point-to-point, bidirectional digital communication standard that replaces traditional 4-20 mA and binary 24V signaling with a single standardized cable carrying both power and process data, enabling predictive maintenance and rich diagnostic data on factory floors. Key features of the MAX14821ETG+ include 1/1 transceiver topology, integrated surge protection for industrial 24V lines, selectable C/Q and DI current loads for actuator use, and a wide -40C to +85C industrial operating temperature range. The C/Q driver is rated for the high-current switching demanded by industrial actuators, while the DI (digital input) and DO (digital output) channels support legacy 24V binary sensor and actuator signaling. The integrated 5V/3.3V LDO outputs eliminate the need for external regulators in most sensor head designs, while the WU output pin enables ultra-low-power sleep modes for IO-Link-compliant wake-up sequences. From an architectural standpoint, the MAX14821ETG+ integrates the 24V physical layer, two LDO regulators, surge/transient protection, and configurable driver stages into a single die. This level of integration allows a complete IO-Link device node to be built with the MAX14821ETG+, a microcontroller, and minimal external passives. The device is designed to meet IEC 61131-9 IO-Link specifications and the IEC 61000-4-2 ESD and surge immunity requirements typical of industrial 24V environments. Typical applications include IO-Link smart sensors (photoelectric, inductive, capacitive, pressure), IO-Link valve manifolds and binary actuators, industrial 24V binary sensors with wake-up capability, and factory automation I/O modules. It is also well-suited for distributed I/O blocks, proximity switches, and condition-monitoring sensor heads where the 24V bus doubles as both power supply and communication line. When designing with this transceiver, ensure that the C/Q and DO driver configurations match the connected load (sink vs source) before commissioning, and place the bulk 24V decoupling capacitor close to the VSUP pin to ride through industrial surge events. Designers should also account for the thermal dissipation of the integrated LDOs when sourcing 100 mA continuously to the microcontroller rail. This page synthesizes distributor pricing, same-family drop-in alternatives, and practical design notes that go beyond what is reproduced in the manufacturer datasheet, helping engineers accelerate their IO-Link device development and source decisions.
MAX14850ASE+ - 6-Channel 600Vrms Digital Isolator | Analog Devices
The Analog Devices (formerly Maxim Integrated) MAX14850ASE+ is a six-channel digital isolator in a 16-pin SOIC (NSOIC) package that delivers up to 50 Mbps signaling and 600 Vrms isolation voltage across a monolithic silicon-dioxide barrier. It supports 3 V to 5.5 V power domains on both sides of the isolation barrier, a 1.5 kV/us minimum common-mode transient immunity (CMTI), and 30 ns typical propagation delay. A digital isolator is a semiconductor device that transfers logic signals across an isolation barrier using capacitive or magnetic coupling rather than opto-coupling or transformer coupling. Isolators sit in the system hierarchy between level shifters (which do not provide galvanic isolation) and reinforced safety isolators (which add redundant barriers for medical and high-voltage applications). The MAX14850 family uses Maxim's proprietary monolithic process technology to integrate the isolation barrier and transceivers onto a single die, reducing BOM cost versus traditional optocoupler or discrete transformer solutions. Key features include 600 Vrms working voltage rating, 2.5 kVrms surge capability per IEC 61000-4-5 referenced in the manufacturer datasheet, six independent unidirectional channels configured as 3 forward / 3 reverse, low power consumption of 2.5 mA per channel at 1 Mbps, 25 kV/us typical CMTI, and a wide operating temperature range of -40 C to +105 C. The device requires no external components other than standard bypass capacitors on each supply pin. The MAX14850 architecture combines on-chip transformers or capacitive couplers with Manchester-style or pulse-encoded data transmission to achieve robust common-mode rejection. Its monolithic integration eliminates the LED aging and CTR degradation that affect optocouplers, yielding stable performance over temperature and end-product lifetime. Typical applications include isolated RS-485/RS-232 transceivers, industrial fieldbus (Modbus, Profibus), isolated SPI and GPIO interfaces for microcontroller I/O expansion, medical patient-monitoring equipment requiring 1 x MOPP, solar inverter gate-drive signal isolation, and battery management systems in electric vehicles. When designing with this part, ensure each VDD pin is bypassed with a 0.1 uF ceramic capacitor placed within 2 mm of the IC body, and route high-speed signal traces on the inner PCB layers using a controlled-impedance stack-up to maintain signal integrity across the isolation barrier. Confirm that the board-level creepage and clearance distances for the 600 Vrms rating meet the application's pollution-degree and altitude derating requirements per IEC 60664-1.
MAX14851AEE+ - 6-Ch 600Vrms Digital Isolator, 2Mbps/50Mbps | Analog Devices
The Analog Devices (formerly Maxim Integrated) MAX14851AEE+ is a six-channel digital isolator delivering 600Vrms isolation with 2Mbps default data rate and a 50Mbps high-speed option in a 16-pin SSOP (QSOP) package. It features monolithic Maxim process technology providing compact, low-cost isolation between circuits operating from independent 3V to 5.5V supplies on each side of the barrier. The device provides a minimum common-mode transient immunity (CMTI) of 3.2 kV/us and is the industry first monolithic 600Vrms digital isolator. A digital isolator is an integrated circuit that transfers logic signals between two voltage domains while maintaining galvanic isolation - a safety barrier that blocks DC and low-frequency AC while allowing high-frequency digital edges to pass. Isolators belong to the signal isolation family, which sits between interface ICs and power management in the broader semiconductor hierarchy. They are essential for breaking ground loops, protecting low-voltage logic from high-voltage transients, and meeting safety standards such as IEC 60747-17 / UL 1577 for reinforced insulation. Key features of the MAX14851AEE+ include six unidirectional channels configurable as forward/reverse combinations, 11.8 ns typical propagation delay, 3V to 5.5V independent supply on each side (suitable as a level translator), 600Vrms working voltage per UL 1577, and an extended -40C to +125C operating temperature range. Independent supply ranges also make the device suitable as a logic-level translator between 3.3V and 5V systems without external circuitry. The MAX14851 uses Maxim's proprietary monolithic isolation process, embedding the isolation barrier on the same silicon die rather than relying on transformer or optical coupling. This monolithic approach achieves lower power consumption and higher channel density than multi-chip alternatives while eliminating the discrete transformer or optocoupler BOM. Typical applications include isolating SPI buses between an MCU and a sensor front-end, isolating I2C and RS-232/RS-485/RS-422 transceivers in industrial fieldbus nodes, general-purpose GPIO isolation in PLC and motor-drive digital interfaces, and level translation between mixed-voltage MCUs and 5V peripherals. Six channels are well matched to 4-wire SPI plus chip-select and one extra GPIO for fault or reset signaling. When designing with the MAX14851AEE+, route the four inner ground pins (GND1/GND2) carefully to maintain barrier creepage and clearance. Place 0.1 uF + 10 uF decoupling on both VDDA and VDDB as close to the IC as possible. Avoid running high-speed traces under the device to preserve creepage on the SSOP body. This page synthesizes distributor pricing, drop-in alternatives, and design notes that are not consolidated in the manufacturer datasheet, including a side-by-side comparison with same-package isolators.
MAX14852GWE+ - 2.75kV Isolated RS-485/RS-422 Transceiver | Maxim Integrated
The Maxim Integrated (now Analog Devices) MAX14852GWE+ is a 2.75kVRMS isolated, full-duplex RS-485/RS-422 transceiver housed in a 16-pin wide-body SOIC (WSOIC) package. It supports data rates of 500 kbps (low-speed mode) and 25 Mbps (high-speed mode), operates from a 1.71V to 5.5V supply on both the UART and cable-side domains, and provides 35 kV ESD protection (HBM) on the bus pins per the Maxim datasheet. An isolated RS-485 transceiver is a bus interface IC that combines a standard differential line transceiver with on-chip galvanic isolation. Isolation breaks ground loops, eliminates common-mode voltage damage, and rejects large ground-potential differences between system nodes. Within a typical industrial system, the MAX14852 sits between a microcontroller UART and the RS-485 bus, sitting in the signal-chain layer between the controller SoC and the field wiring. Key features of the MAX14852GWE+ include integrated transformer-driver isolation (no external transformers or optocouplers required), 1 driver / 1 receiver full-duplex configuration, true fail-safe receiver inputs, hot-swap capability on the bus side, and a low supply current that suits battery-backed or always-on industrial nodes. The wide-body SOIC package provides the minimum 8 mm of creepage/clearance required for 2.75 kVRMS reinforced isolation per IEC 60950 / IEC 62368. Technically, the MAX14852 uses Maxim's proprietary iso-loop isolation technology to embed an isolation barrier and DC-DC drive directly inside the IC, eliminating the need for an external isolated power supply on the cable side. The 2.75 kVRMS rating is verified for 60 seconds and the part is rated for -40 °C to +105 °C operation, suitable for outdoor cabinet and industrial-control environments. Typical applications include isolated Modbus RTU links in PLCs, RS-485 repeaters/bridges, solar inverter monitoring, building automation gateways, and any industrial node requiring robust ground isolation. Compared with optocoupler-plus-isolated-DC/DC discrete implementations, the MAX14852 reduces BOM count, PCB area, and design time. When designing with this device, allocate the WSOIC-16 footprint on the PCB with adequate clearance under the package to preserve the 2.75 kV rating, and bypass both VDD pins with 0.1 µF + 10 µF capacitors placed within a few millimeters of the pins. Note that the MAX14852GWE+ and MAX14854GWE+ differ in data-rate grade (500 kbps/25 Mbps vs 25 Mbps fixed). This page synthesizes drop-in alternatives in the WSOIC-16 package, distributor pricing tiers, and practical PCB layout/design notes that go beyond what is shown on Maxim/Analog Devices product pages.
MAX14854GWE+ - 25Mbps Isolated RS-485/RS-422 | Analog Devices
The Analog Devices MAX14854GWE+ is a 25Mbps isolated full-duplex RS-485/RS-422 transceiver with 2.75kV RMS galvanic isolation, 35kV ESD protection, and a 16-pin wide SOIC package. It supports a 1.71V to 5.5V supply range and integrates one driver and one receiver for robust point-to-point or multipoint serial links. The isolation barrier separates the cable-side driver and receiver from the UART-side circuitry. An isolated RS-485/RS-422 transceiver is an interface IC that translates logic-level signals into differential cable signals while providing galvanic isolation between equipment domains. Galvanic isolation breaks ground loops, reduces common-mode noise, and protects low-voltage UART electronics from cable-side transients. This makes the MAX14854GWE+ suitable for industrial communication, test equipment, building controls, and systems where the host and cable grounds may be at different potentials. The device supports operation from 1.71V to 5.5V, data rates up to 25Mbps in the high-speed mode, and lower-rate operation down to 500kbps according to the manufacturer product description. Its full-duplex architecture supports separate transmit and receive paths, while the integrated isolation barrier provides 2750V RMS for 60 seconds. The cable interface includes ±35kV ESD protection, a significant advantage in connector environments where electrostatic discharge is a recurring threat. The MAX14854 family is designed for robust differential serial communication where isolated voltage levels and high data throughput are both important. The MAX14854GWE+ combines an integrated isolation barrier with RS-485/RS-422 driver and receiver functions, reducing the number of external isolation components required. Its wide-body SOIC package is intended for surface-mount industrial equipment and is compatible with automated assembly. Typical applications include industrial RS-485 links, isolated UART bridges, factory equipment interfaces, building automation, instrumentation, and communications between controllers and remote sensors. The full-duplex configuration is especially useful when simultaneous transmit and receive operation is required, while the isolation rating supports dependable communication across equipment boundaries. Designers should verify supply voltage, baud-rate mode, termination, fail-safe biasing, isolation requirements, and cable-side protection before layout. Place the isolation-related components and differential traces according to the manufacturer datasheet, and keep the logic-side and cable-side ground domains physically separated. The MAX14854GWE+ is an active, leaded surface-mount device identified by the GWE+ ordering suffix.
MAX14882AWE - 5kVRMS Isolated CAN Transceiver, 1Mbps, 16-SOIC
The Analog Devices (formerly Maxim Integrated) MAX14882AWE is a 5kVRMS galvanically-isolated high-speed CAN transceiver housed in a 16-pin wide-body SOIC (WSOIC) package. It operates at data rates up to 1Mbps and provides 5000VRMS (60s) of isolation between the CAN-protocol controller-side (TXD, RXD) and the physical bus-side wires (CANH, CANL), integrating the isolation barrier, an isolated DC-DC transformer driver, and an LDO for bus-side power. A CAN transceiver is a physical-layer interface IC that translates the differential CAN protocol from a microcontroller into the robust voltage levels required on a CAN bus, while providing protection against ground loops, common-mode transients, and bus faults. Isolated CAN transceivers additionally place a galvanic barrier between the controller and the bus, eliminating ground-potential differences and surge propagation in industrial environments. The MAX14882AWE falls in the hierarchy: CAN transceiver -> automotive/industrial bus interface IC -> interface IC -> integrated circuit. Key features include a ±25V receiver common-mode input range (exceeding the ISO 11898-2 requirement of -2V to +7V), ±54V fault-tolerant CANH/CANL outputs, and ±15kV HBM ESD protection on the bus-side pins to GNDB. The controller-side operates from VDDA = 3.0V to 5.5V, while the bus-side runs from VDDB = 4.5V to 5.5V with an integrated transformer driver that supports an external transformer for isolated supply rails. Operating temperature spans -40°C to +125°C. The device supports a low-power standby mode for remote-wakeup and an integrated POL (polarity swap) feature that swaps CANH and CANL functions to correct cross-wired cables via software. The wide-body SOIC package provides 8mm of creepage and clearance, satisfying IEC 60950 and IEC 62368 reinforced insulation requirements for industrial and renewable energy installations. Typical applications include isolated CAN nodes in solar inverters, industrial PLC backplanes, electric vehicle battery management systems (BMS), and any industrial network requiring robust galvanic isolation between the controller MCU and the noisy CAN bus cable plant. When designing with the MAX14882AWE, the external transformer (e.g., a 1:1.3 or 1:1 turns ratio miniature transformer) is the critical BOM item that determines the isolated bus-side rail voltage and overall efficiency. PCB layout must maintain 8mm creepage across the WSOIC body and avoid copper traces under the package to preserve the reinforced insulation barrier. This page synthesizes drop-in alternatives, distributor pricing as of 2026-10-16, design notes, and a side-by-side comparison versus MAX14882 family variants and competing isolated CAN transceivers not found in the manufacturer datasheet alone.
MAX14882AWE+T - 5kVRMS Isolated CAN Transceiver | Analog Devices
The Analog Devices (formerly Maxim Integrated) MAX14882AWE+T is a 5kVRMS isolated high-speed CAN transceiver that integrates galvanic isolation between the CAN-protocol controller side (TXD, RXD) and the physical CAN bus wires (CANH, CANL), delivering 1Mbps data rate over a 3.0V to 5.5V controller-side supply and 4.5V to 5.5V bus-side supply in a 16-pin wide-body SOIC (W SOIC) package with 8mm of creepage and clearance. What is an isolated CAN transceiver? A CAN (Controller Area Network) transceiver is the physical-layer interface between a digital CAN protocol controller and the differential CAN bus cables. An "isolated" variant adds a galvanic isolation barrier (here, 5kVRMS) that breaks ground loops, rejects common-mode transients, and protects low-voltage microcontrollers from high-voltage faults on the industrial CAN bus. The MAX14882 sits in the product hierarchy: CAN transceiver -> automotive/industrial transceiver -> isolated interface IC -> power management and signal conditioning IC family. Key features include a ±25V receiver input common-mode range (exceeding the ISO 11898-2 requirement of -2V to +7V), ±54V fault tolerance on CANH/CANL, ±15kV HBM ESD protection on bus-side pins to GNDB, an integrated transformer driver with LDO that supplies VDDB from an external transformer, and a POL (polarity) pin that swaps CANH/CANL functions for software correction of cross-wired bus cables. The integrated isolation eliminates the need for a discrete digital isolator plus an external isolated DC/DC supply, reducing BOM count and PCB footprint by roughly 50%. Typical applications include industrial automation networks (CANopen, DeviceNet), building automation HVAC controllers, solar inverter inter-module communication, electric vehicle battery management systems (CAN-FD ready), and any microcontroller-to-bus interface requiring robust galvanic isolation in harsh electrical environments. When designing with this part, place decoupling capacitors (typically 100nF plus 10µF) on both VDDA and VDDB as close to the IC as possible, and route the external transformer primary traces symmetrically. The integrated LDO can source up to 300mA for auxiliary circuits after supplying the internal 130mA MAX14882 load, but derate at high bus-side temperatures.
MAX14931AASE+T - 4-Ch 1Mbps 2.75kVrms Digital Isolator | ADI
The Analog Devices (formerly Maxim Integrated) MAX14931AASE+T is a 4-channel, 2.75kVRMS digital isolator in a 16-pin wide-body SOIC package, supporting 1 Mbps data rate with a typical CMTI of 25 kV/µs. The device transfers digital signals across an isolation barrier using Maxim's proprietary process technology, and the 3/1 unidirectional channel configuration makes it well suited to SPI, RS-232, RS-485, and general-purpose digital I/O isolation. A digital isolator is a semiconductor device that uses an internal isolation barrier - typically a capacitive, magnetic, or optical coupling structure - to transmit logic-level signals between two galvanically isolated voltage domains while blocking DC and low-frequency currents. Digital isolators replace optocouplers in modern designs and are classified within the broader signal-chain and interface-IC family. They are key building blocks for reinforced insulation, functional safety, and high-voltage system partitioning. Key features of the MAX14931AASE+T include 2750 Vrms withstand voltage, 1 Mbps guaranteed data rate across -40 °C to +125 °C, 25 kV/µs typical common-mode transient immunity, low propagation delay of 42.9 ns, and 1.71 V minimum supply voltage. The wide-body SOIC-16 package provides the required creepage and clearance for reinforced isolation at 2.75 kVRMS, simplifying PCB layout for industrial bus isolation. Internally, the MAX14931AASE+T uses Maxim's proprietary CMOS isolation technology with integrated dc-dc converter control on the secondary side for optional isolated power. Each of the four channels is unidirectional, three in one direction and one in the reverse direction, matching typical SPI / UART peripheral-interface signalling patterns without requiring external direction-control logic. Typical applications include isolated SPI interfaces for industrial PLCs, isolated RS-485 transceivers in factory automation, isolated gate-drive signal conditioning for motor drives, and medical device patient-isolated data links. The wide operating temperature range supports both industrial and automotive-grade designs. When designing with this device, follow the SOIC-16 wide-body creepage and clearance guidelines: maintain at least 8 mm of PCB spacing under the package body and avoid routing copper traces between pins to preserve the 2.75 kVRMS rating. Decouple both VDD pins with 0.1 µF low-ESR ceramic capacitors placed within 2 mm of the supply pins.
MAX14931BAWE+T - 4-Ch 2.75kVrms Digital Isolator | Analog Devices
The Analog Devices (formerly Maxim Integrated) MAX14931BAWE+T is a 4-channel, 2.75 kVrms general-purpose digital isolator housed in a 16-pin wide-body SOIC (WSOIC-16) package with 3/1 channel direction configuration. It supports data rates up to 25 Mbps and delivers typical common-mode transient immunity (CMTI) of 25 kV/µs, transferring digital signals across an isolation barrier using the proprietary process technology that integrates a single-ended CMOS or LVCMOS interface on each side. A digital isolator is a semiconductor device that uses galvanic isolation (typically via on-chip transformers, capacitive barriers, or optocouplers) to allow high-speed digital communication between two domains that sit at very different ground potentials or that must remain safety-isolated. Digital isolators -> isolators -> interface ICs -> signal conditioning ICs -> semiconductors is the taxonomy hierarchy. Compared with legacy optocouplers, CMOS-based digital isolators offer faster data rates, tighter channel-to-channel matching, lower power consumption, and CMTI performance two to three orders of magnitude higher. Key features of the MAX14931BAWE+T include a 2.75 kVrms withstand voltage per UL 1577, default output state options (high or low) across the MAX14930/MAX14931/MAX14932 family, 1.71 V to 5.5 V wide supply range on both sides, and an operating temperature range of -40 °C to +125 °C. The integrated refresh circuit maintains stable output levels when input signals remain static for long durations, eliminating the input-signal minimum-rate constraints common to many AC-coupled isolators. The MAX14931BAWE+T uses Maxim's proprietary process technology that embeds an isolation barrier directly inside the die-package stack-up. This monolithically integrated approach reduces channel-to-channel skew to under 4 ns and provides a low pulse-width distortion around 5 ns, preserving signal integrity at the 25 Mbps maximum data rate even in motor-drive and industrial-servo environments where dv/dt transients easily exceed 10 kV/µs. Typical applications include isolated RS-485/RS-422 interfaces, isolated SPI or I2C data links between MCU and high-voltage drivers, industrial fieldbus isolation (Profibus, Modbus, CAN), isolated gate-driver signal paths for IGBT and SiC power stages, and medical equipment patient-isolated signal acquisition. The wide 1.71 V to 5.5 V supply range lets the same part serve 1.8 V, 2.5 V, 3.3 V, and 5 V logic rails without level-shifters. When designing with this device, place 0.1 µF decoupling capacitors as close as possible to each VDD pin on both primary and secondary sides; for optimal CMTI performance, route the isolator away from fast-switching traces, and add a stitching capacitance between the two ground domains to shunt common-mode currents. The default output state (A/B/C/D suffix) must be chosen to match the system fail-safe polarity required by downstream logic. This page synthesizes distributor stock and pricing snapshots, drop-in same-package alternatives, parametric comparison tables, and PCB design notes not consolidated on any single manufacturer or distributor page.
MAX14931DASE+T - 4-Ch 2.75kVrms Digital Isolator, 1Mbps | ADI
The Analog Devices (formerly Maxim Integrated) MAX14931DASE+T is a 4-channel, 2.75 kVrms digital isolator with a maximum data rate of 1 Mbps and 25 kV/us (typical) CMTI, housed in a 16-pin wide-body SOIC package. The device provides galvanic isolation between circuits using Maxim's proprietary process technology, eliminating the need for external isolation components. What is a digital isolator? A digital isolator is an integrated circuit that transfers digital signals across an isolation barrier using capacitive, inductive (transformer), or optical coupling while blocking high voltages and transients. Digital isolators replace optocouplers in modern designs, offering higher speed, lower power consumption, better CMTI, and longer operational life. They sit in the signal chain hierarchy of interface IC -> isolator -> digital isolator -> quad-channel digital isolator, providing functional safety and ground isolation in industrial, medical, and renewable-energy systems. Key specifications include 2.75 kVrms isolation voltage rating per UL 1577, 1 Mbps maximum data rate across four unidirectional channels (3-in/1-out configuration in the MAX14931DASE variant), 25 kV/us typical common-mode transient immunity (CMTI), and a wide 1.71 V to 5.5 V supply range on both sides. The device operates across the -40 C to +125 C industrial temperature range and consumes under 3 mA per channel at 1 Mbps. The wide-body SOIC-16 footprint provides the required creepage and clearance for reinforced insulation at 2.75 kVrms. The MAX14931DASE+T architecture uses capacitive isolation with differential signaling across the isolation barrier and integrated refresh circuitry on the secondary side, achieving deterministic timing with under 50 ns propagation delay. This topology avoids the aging and CTR-degradation mechanisms of optocouplers, providing stable performance over the device's lifetime. Typical applications include isolated SPI/RS-232/RS-485 interfaces, industrial fieldbus isolation (Modbus, Profibus), PLC digital I/O modules, isolated gate drivers for motor control and solar inverters, medical device signal isolation per IEC 60601-1, and battery management system (BMS) communications in electric vehicles. The MAX14931 variant (3-in/1-out channel direction) suits SPI-style clock/SS/MOSI/MISO isolation where the host side has three inputs and one output. When designing with the MAX14931DASE+T, place 0.1 uF bypass capacitors as close as possible to each VDD pin and ensure adequate creepage on the PCB (at least 8 mm for 2.75 kVrms reinforced insulation per IEC 60730-1). The EN pin controls the output enable state and should be tied high for normal operation or left open if unused. This page synthesizes distributor pricing, drop-in alternatives drawn from the same ADI/Maxim family and competitor cross-reference data, and practical PCB layout notes that extend beyond the manufacturer datasheet.
MAX14933AWE+ - 2-Ch 2.75kVrms I2C Digital Isolator | ADI/Maxim
The Analog Devices (formerly Maxim Integrated) MAX14933AWE+ is a two-channel, 2.75kVrms I2C digital isolator that uses proprietary process technology to galvanically isolate two bidirectional open-drain channels in a 16-pin wide-body SOIC package (0.295"/7.50mm). It supports data rates up to 2 Mbps and tolerates ambient temperatures up to +125°C, with a typical common-mode transient immunity (CMTI) of 25 kV/us. Per the ADI MAX14933 datasheet, this part targets I2C/SMBus applications where the bus must cross an isolation barrier between two different power domains. A digital isolator is a semiconductor device that transmits logic-level signals across a galvanic isolation barrier (typically a high-voltage capacitor or transformer inside an IC package) while blocking DC and low-frequency AC between input and output. Digital isolators (and their ancestors, optocouplers) belong to the signal-isolation family, which also includes isolated gate drivers and isolated ADCs. Compared to optocouplers, CMOS digital isolators offer 10x faster data rates, 5-10x lower power consumption, tighter CMTI, and no LED-aging concerns. The MAX14933 family specifically targets I2C/SMBus, where both clock and data lines are bidirectional and open-drain, requiring unique bidirectional channel design. Key features of the MAX14933AWE+ include 2.75kVrms isolation rating, two bidirectional open-drain channels suitable for SDA/SCL, 2 Mbps data rate, 3.0V to 5.5V supply range on both sides, 25 kV/us typical CMTI, and integrated hot-swap friendly architecture for cards that plug into a live backplane. The device replaces discrete optocoupler-plus-logic solutions with a single CMOS IC, simplifying PCB layout and reducing BOM count in isolated I2C designs. The MAX14933 employs proprietary CMOS isolation technology that embeds the isolation barrier on-chip rather than relying on a separate transformer or LED. The two bidirectional channels each contain edge-detection and channel-reversal logic so that the open-drain I2C signal can flow from side-A to side-B and back without external direction-control circuitry. This architecture delivers the speed and CMTI of modern digital isolators while preserving the bidirectional open-drain behavior required by the I2C specification. Typical applications include isolated I2C communication between microcontrollers and sensors in industrial automation, isolated SMBus interface to hot-swap-able power supplies, isolated EEPROM or temperature-sensor readouts in patient monitors, battery-management I2C buses in 400V/800V EV battery packs, and isolated GPIO expansion over I2C backplanes. The wide-body SOIC-16 (7.50mm) package provides the required 8mm creepage/clearance for 2.75kVrms reinforced isolation. When designing with this part, allocate the wide-body SOIC-16 footprint carefully - the 7.50mm body width is required to meet the 2.75kVrms creepage and clearance, and substituting a narrow-body SOIC-16 will violate safety distances. Both sides need a local 3.0V-5.5V supply with a 0.1uF decoupling capacitor close to each VDD pin, and SDA/SCL pull-up resistors must be placed on the side that drives each line low. This page combines distributor pricing, drop-in alternatives in the same SOIC-16 footprint, and practical design notes that supplement the manufacturer datasheet.
MAX1840/W - SIM/Smart-Card Level Translator | Analog Devices
The Analog Devices MAX1840/W is a low-voltage SIM/smart-card level translator that provides bidirectional level shifting and ±10 kV ESD protection for SIM and smart-card ports, housed in a 10-pin µMAX package measuring only 1.09 mm high. It operates from a +2.7 V to +5.5 V supply and is compliant with GSM test specifications 11.11 and 11.12. A level translator (also called a level shifter) is a mixed-signal interface IC that converts logic signals between two different voltage domains. Within the semiconductor hierarchy, the MAX1840/W sits under interface ICs, which belong to the broader analog/mixed-signal integrated circuit family. SIM and smart-card interfaces require a dedicated translator because the card operates at 1.8 V, 3 V, or 5 V while the host controller may run at a different rail; the translator must also survive the ESD events that occur when a card is inserted or removed. The MAX1840/W integrates level-shifting circuitry for the SIM clock, reset, and bidirectional data lines, plus ESD protection diodes rated to ±10 kV (Human Body Model) on the card-side pins. Its ultra-small 10-pin µMAX package occupies roughly half the board area of an 8-pin SOIC, which is critical in GSM handsets where PCB real estate is at a premium. The device is specified over the -40 °C to +85 °C extended temperature range. Typical applications include SIM interfaces in GSM cellular telephones, smart-card readers, and SPI/QSPI/MICROWIRE level translation where a compact, ESD-hardened interface is needed. The MAX1840/W is the lead-free (W) variant of the MAX1840 family, making it suitable for RoHS-compliant production. When designing with the MAX1840/W, place the ESD protection close to the card connector and keep the card-side traces short to preserve the ±10 kV rating. The device is a legacy Maxim part now manufactured by Analog Devices; verify lifecycle status and availability before committing to new designs. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
MAX202CD - 5V Dual RS-232 Transceiver | Texas Instruments
The Texas Instruments MAX202CD is a 5 V dual RS-232 line driver and receiver with two drivers, two receivers, a dual charge-pump circuit, and ±15 kV ESD protection on serial-port connection pins, including ground. It is packaged in a 16-pin SOIC and operates from a 4.5 V to 5.5 V supply. The MAX202CD provides the electrical interface between an asynchronous communication controller and an RS-232 serial-port connector, making it suitable for industrial control, embedded systems, instrumentation, and legacy PC serial ports. An RS-232 transceiver combines line-driver and line-receiver functions with the voltage-level conversion required to connect low-voltage digital logic to a ±RS-232 communications link. The MAX202CD uses charge-pump circuitry to generate the bipolar voltage required by RS-232 drivers. Its two-driver, two-receiver arrangement supports one full-duplex RS-232 channel in a 16-pin SOIC, while its integrated ESD protection helps improve system robustness at the connector-facing pins. Key features include a 4.5 V to 5.5 V supply range, two RS-232 drivers, two RS-232 receivers, and ±15 kV ESD protection as identified in the manufacturer datasheet description. The device meets the requirements of TIA/EIA-232-F according to the manufacturer datasheet. The SOIC-16 package supports conventional surface-mount assembly, while the dual channel count helps reduce the number of interface components required for two-wire serial links. The MAX202CD is designed for asynchronous serial communication between a host controller and an external RS-232 device. Its internal charge pump provides the elevated and reduced driver voltages required by RS-232 while the receiver side translates connector-level signals back to logic-compatible levels. The interface should be evaluated together with cable length, baud rate, grounding, connector exposure, and system ESD requirements. Typical uses include industrial serial controllers, test equipment, data-acquisition systems, embedded service interfaces, and legacy computer peripherals. In each case, the transceiver handles the physical RS-232 layer, while the connected controller handles framing, protocol, and application data. For PCB implementation, place the device close to the RS-232 connector and follow the manufacturer’s recommended charge-pump capacitor and interface layout. Keep the connector-side nets isolated from sensitive logic where practical, provide a solid ground return, and verify the external protection and signal-integrity requirements for the intended cable environment. This page consolidates verified MAX202CD specifications, pricing references, package information, drop-in alternatives, comparison parameters, and practical RS-232 design guidance for engineers evaluating a 5 V dual-transceiver solution.
MAX202CDE4 - 5V Dual RS-232 Transceiver | Texas Instruments
Texas Instruments MAX202CDE4 is a 5 V dual RS-232 line driver and receiver with ±15 kV ESD protection, supplied in a 16-pin SOIC package. It combines two RS-232 transmitters and two receivers on one interface IC, supports operation at up to 120 kbit/s, and requires external 0.1 µF charge-pump capacitors. The device is designed for equipment that exchanges data over RS-232 links. An RS-232 transceiver is an interface IC that converts logic-level signals into RS-232 line levels and converts received line-level signals back into logic-compatible levels. Within the interface hierarchy, the MAX202CDE4 belongs to the line-driver and receiver class, which sits below RS-232 interface ICs and broader semiconductor interface devices. Its integrated driver and receiver functions simplify point-to-point and multi-port serial connections. The principal features include operation from a 5 V supply, data rates up to 120 kbit/s, and ESD protection rated to ±15 kV under the Human-Body Model. The bus pins meet or exceed TIA/EIA-232-F and ITU V.28 requirements. These protections are important when cables connect through external equipment or leave the enclosure, where electrostatic discharge can otherwise damage the interface. The MAX202 family uses a charge-pump approach to generate the voltage levels needed for RS-232 transmission. Charge-pump capacitors connected to the designated pins produce the positive and negative line voltages. The specified external 0.1 µF capacitors are part of the circuit rather than optional bypass components, so their voltage rating, placement, and connection to the designated charge-pump pins must follow the manufacturer guidance. Typical uses include industrial control equipment, data-collection systems, service interfaces, and legacy serial-port adapters. The dual-driver, dual-receiver arrangement can support two data channels or separate transmit and receive paths. It is especially relevant where a modern controller must communicate with equipment that still exposes an RS-232 port. When designing around the MAX202CDE4, keep the charge-pump capacitor loop compact and route each bus line away from sensitive analog circuitry. Confirm ground-reference and cable arrangements before connecting equipment, because an RS-232 link may use signal ground, chassis ground, or shield bonding according to the system architecture. The manufacturer datasheet should govern the final pin connections and external charge-pump capacitor layout. This product record combines the verified electrical and package characteristics with application guidance, replacement considerations, comparison rows, and PCB-level design notes. It is intended to support faster component selection while preserving the distinction between verified device ratings and design-specific engineering decisions.
MAX202CDR - 5V Dual RS-232 Transceiver | Texas Instruments (Tape & Reel)
The Texas Instruments MAX202CDR is a 5 V dual RS-232 line driver and receiver with two drivers, two receivers, a dual charge-pump circuit, and ±15 kV ESD protection on serial-port connection pins, including ground. It is packaged in a 16-pin SOIC and operates from a 4.5 V to 5.5 V supply. The MAX202CDR provides the electrical interface between an asynchronous communication controller and an RS-232 serial-port connector, making it suitable for industrial control, embedded systems, instrumentation, and legacy PC serial ports. An RS-232 transceiver combines line-driver and line-receiver functions with the voltage-level conversion required to connect low-voltage digital logic to a ±RS-232 communications link. The MAX202CDR uses charge-pump circuitry to generate the bipolar voltage required by RS-232 drivers. Its two-driver, two-receiver arrangement supports one full-duplex RS-232 channel in a 16-pin SOIC, while its integrated ESD protection helps improve system robustness at the connector-facing pins. Key features include a 4.5 V to 5.5 V supply range, two RS-232 drivers, two RS-232 receivers, and ±15 kV ESD protection as identified in the manufacturer datasheet description. The device meets the requirements of TIA/EIA-232-F according to the manufacturer datasheet. The SOIC-16 package supports conventional surface-mount assembly, while the dual channel count helps reduce the number of interface components required for two-wire serial links. The MAX202CDR is designed for asynchronous serial communication between a host controller and an external RS-232 device. Its internal charge pump provides the elevated and reduced driver voltages required by RS-232 while the receiver side translates connector-level signals back to logic-compatible levels. The interface should be evaluated together with cable length, baud rate, grounding, connector exposure, and system ESD requirements. Typical uses include industrial serial controllers, test equipment, data-acquisition systems, embedded service interfaces, and legacy computer peripherals. In each case, the transceiver handles the physical RS-232 layer, while the connected controller handles framing, protocol, and application data. For PCB implementation, place the device close to the RS-232 connector and follow the manufacturer’s recommended charge-pump capacitor and interface layout. Keep the connector-side nets isolated from sensitive logic where practical, provide a solid ground return, and verify the external protection and signal-integrity requirements for the intended cable environment. This page consolidates verified MAX202CDR specifications, pricing references, package information, drop-in alternatives, comparison parameters, and practical RS-232 design guidance for engineers evaluating a 5 V dual-transceiver solution.
MAX202CDW - 120kbps Dual RS-232 Transceiver | Texas Instruments
Texas Instruments MAX202CDW is a 5 V dual RS-232 line driver and receiver with two transmit channels, two receive channels, a dual charge-pump circuit, and ±15 kV ESD protection on the serial-port connection pins. It supports data-signaling rates up to 120 kbit/s and is packaged in a 16-pin SOIC. The interface is designed to meet or exceed the requirements of TIA/EIA-232-F and ITU V.28 standards, while its ±9 V driver outputs provide RS-232-compatible signal levels from a single 5 V supply. The MAX202CDW uses external 0.1 µF charge-pump capacitors, allowing the device to generate the bipolar voltage required by RS-232 line drivers without a separate negative power supply. Its integrated charge pump and dual transceiver arrangement make it suitable for industrial control, instrumentation, point-of-sale equipment, and other systems that exchange serial data over longer cable runs than a logic-level UART can tolerate. The chip is also designed to be interchangeable with the Maxim MAX202, which simplifies qualification when transferring an existing circuit. In addition to the two RS-232 drivers and receivers, the MAX202CDW provides receiver output enable functions, allowing connected equipment to place the receive outputs in a high-impedance state when required. Its 16-SOIC package is available in the MAX202CDW ordering configuration identified by Texas Instruments. The external-capacitor approach requires careful placement to minimize charge-pump noise and ensure stable operation. Designers should place the specified 0.1 µF capacitors close to their respective pins, route the interface connector away from sensitive analog and clock circuitry, and provide suitable return paths for the RS-232 cable. According to the manufacturer product information, MAX202 supports signaling rates up to 120 kbit/s, a maximum driver slew rate of 30 V/µs, ±9 V output levels, and ±15 kV ESD protection. The MAX202CDW therefore combines a familiar RS-232 interface, integrated level translation, and hardware-assisted electrostatic-discharge resilience in a compact surface-mount package.
MAX202CDWR - 120kbps Dual RS-232 Transceiver | Texas Instruments (Tape & Reel)
Texas Instruments MAX202CDWR is a 5 V dual RS-232 line driver and receiver with two transmit channels, two receive channels, a dual charge-pump circuit, and ±15 kV ESD protection on the serial-port connection pins. It supports data-signaling rates up to 120 kbit/s and is packaged in a 16-pin SOIC. The interface is designed to meet or exceed the requirements of TIA/EIA-232-F and ITU V.28 standards, while its ±9 V driver outputs provide RS-232-compatible signal levels from a single 5 V supply. The MAX202CDWR uses external 0.1 µF charge-pump capacitors, allowing the device to generate the bipolar voltage required by RS-232 line drivers without a separate negative power supply. Its integrated charge pump and dual transceiver arrangement make it suitable for industrial control, instrumentation, point-of-sale equipment, and other systems that exchange serial data over longer cable runs than a logic-level UART can tolerate. The chip is also designed to be interchangeable with the Maxim MAX202, which simplifies qualification when transferring an existing circuit. In addition to the two RS-232 drivers and receivers, the MAX202CDWR provides receiver output enable functions, allowing connected equipment to place the receive outputs in a high-impedance state when required. Its 16-SOIC package is available in the MAX202CDWR ordering configuration identified by Texas Instruments. The external-capacitor approach requires careful placement to minimize charge-pump noise and ensure stable operation. Designers should place the specified 0.1 µF capacitors close to their respective pins, route the interface connector away from sensitive analog and clock circuitry, and provide suitable return paths for the RS-232 cable. According to the manufacturer product information, MAX202 supports signaling rates up to 120 kbit/s, a maximum driver slew rate of 30 V/µs, ±9 V output levels, and ±15 kV ESD protection. The MAX202CDWR therefore combines a familiar RS-232 interface, integrated level translation, and hardware-assisted electrostatic-discharge resilience in a compact surface-mount package.
MAX202CPE+ - +5V RS-232 Transceiver, 2 Drivers/2 Receivers | Maxim Integrated
The Maxim Integrated MAX202CPE+ (Analog Devices / Maxim Integrated) is a +5V-powered RS-232 transceiver with two drivers and two receivers, integrating charge-pump circuitry that generates the required ±10V RS-232 levels from a single +5V supply using only four 0.1uF external capacitors. Housed in a 16-pin PDIP through-hole package, it supports data rates above 120 kbps while maintaining full EIA/TIA-232E and V.28 compliance for legacy serial-port interconnects. An RS-232 transceiver is a line driver/receiver IC that translates between logic-level (0/5V CMOS or TTL) signals on a microcontroller UART and the ±5V to ±15V bipolar signaling required by the RS-232 standard. In the broader interface hierarchy, the RS-232 transceiver sits between the UART peripheral and the DB-9/DB-25 connector, complementing other interface ICs such as RS-485 transceivers, USB-to-UART bridges, and CAN transceivers. The MAX202 family is one of the most widely adopted +5V RS-232 solutions, with the MAX202CPE+ being the commercial-grade 16-pin PDIP variant. Key features include guaranteed ±5V EIA/TIA-232E output levels, integrated dual charge pump requiring only 0.1uF capacitors, a low 15 mA supply current, and an enable pin on each receiver for shutdown management in battery-powered designs. The device operates from a single +4.5V to +5.5V supply, supports drivers that withstand continuous shorts to ±15V RS-232 outputs, and includes robust ESD protection on the RS-232 I/O pins. The MAX202CPE+ uses a proprietary monolithic BiCMOS charge-pump architecture to develop ±10V from the +5V rail without inductive components. This eliminates the need for ±12V power rails typical of older RS-232 designs, simplifying PCB layout and reducing BOM cost. The receiver inputs include hysteresis for noise immunity in industrial environments where long cable runs are common. Typical applications include legacy PC serial-port interfaces, industrial PLCs and HMIs, point-of-sale (POS) terminals, embedded microcontroller UART bridges, and instrumentation with DB-9 connectors. The 16-pin PDIP package makes the MAX202CPE+ particularly suited for through-hole prototypes, educational kits, repair-of-legacy-equipment, and industrial control boards where socketed ICs simplify field replacement. When designing with this part, place the four 0.1uF charge-pump capacitors as close to the IC pins as possible to minimize ripple on the generated ±10V rails. The MAX202 family is functionally interchangeable with the MAX232, but the MAX202 uses smaller 0.1uF capacitors instead of the 1.0uF capacitors required by the MAX232, saving board space. Order today for shipping within XAIPART's standard lead times. This page synthesizes pricing from 18 distributor listings, drop-in pin-compatible alternatives, and practical PCB layout notes that go beyond what is in the bare datasheet, helping engineers choose between MAX202CPE+ and MAX232 variants with confidence.