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ADUM1400ARWZ-RL7 - Quad Digital Isolator 1Mbps | Analog Devices
The ADUM1400ARWZ-RL7 is a quad-channel digital isolator from Analog Devices, based on iCoupler technology. It provides 4 unidirectional isolation channels with a data rate of 1 Mbps, a withstand voltage of 2500 Vrms, and a common-mode transient immunity (CMTI) of 25 kV/µs. The device is housed in a 16-pin SOIC-W (0.295", 7.50mm width) package, suitable for surface-mount assembly. It operates over a wide supply voltage range of 2.7V to 5.5V on both sides, enabling use in mixed-voltage systems. Digital isolators are components that transmit digital signals across an isolation barrier, providing galvanic isolation to protect sensitive circuitry from high voltages, ground loops, and noise. They are essential in industrial automation, medical equipment, and communication systems where safety and signal integrity are paramount. Unlike optocouplers, iCoupler digital isolators use monolithic air core transformers and high-speed CMOS, offering superior performance, reliability, and integration. Key features of the ADUM1400ARWZ-RL7 include its 4/0 channel directionality (all channels forward), 1 Mbps data rate, 25 kV/µs CMTI, and low power consumption. The device supports a wide temperature range of -40°C to +105°C and is RoHS compliant. Its iCoupler technology eliminates the need for external components like LEDs and photodiodes, simplifying design and improving long-term stability. Technically, the ADUM1400ARWZ-RL7 integrates a high-speed CMOS interface with monolithic transformers, achieving isolation ratings up to 2500 Vrms. The device provides excellent noise immunity and low propagation delay, making it suitable for isolating SPI, UART, and other digital interfaces. Its bidirectional capability (in other variants) and multiple channel configurations offer design flexibility. Typical applications include industrial fieldbus isolation, isolated SPI/UART interfaces, motor control, and power supply monitoring. The device is also used in medical devices where patient safety requires galvanic isolation. Its compact SOIC-16 package and low power consumption make it ideal for space-constrained designs. When designing with this device, ensure proper PCB layout with adequate creepage and clearance distances to maintain isolation ratings. Decouple both supply rails with 0.1 µF capacitors close to the pins. The device does not require external components for isolation, but careful attention to ground plane separation is recommended.
ADUM1400CRWZ-RL - 4-Ch 90Mbps Digital Isolator 2.5kV | SOIC-16
Analog Devices ADUM1400CRWZ-RL is a 4-channel digital isolator with 4/0 channel directionality, based on Analog Devices' iCoupler technology. It delivers up to 90 Mbps data rate, 2500 Vrms isolation voltage, and 25 kV/us minimum common-mode transient immunity (CMTI) in a 16-SOIC (0.295 inch / 7.50 mm width) package supplied on a 13-inch reel (RL suffix). A digital isolator is a semiconductor device that transfers data across an isolation barrier while blocking DC and low-frequency ground potential differences. The ADUM1400 belongs to the broader category of signal isolation ICs, sitting between optocouplers (legacy LED + photodiode technology) and newer transformer- or capacitive-coupled CMOS isolators. iCoupler technology combines high-speed CMOS logic with monolithic air-core transformers on a single silicon die, eliminating the LED aging and current-drive concerns of optocouplers. Key features include 90 Mbps guaranteed data rate (NRZ), 2.5 ns typical propagation delay, 2 ns pulse-width distortion, and 25 kV/us CMTI which prevents data corruption during switching transients on the ground reference. The part operates from 2.7 V to 5.5 V on both sides independently, supporting level translation between mixed-voltage domains. The CR grade specifies a 0-25 Mbps maximum guaranteed data rate at 5 V (CW grade 90 Mbps) with low dynamic current consumption of 1.0 mA per channel at 0-2 Mbps. Architecturally the ADUM1400 integrates four independent isolation channels with on-chip transformers and CMOS refresh circuitry on both sides of the barrier. Refresh cycles reconstruct the input logic state at the output every 1 us or less, ensuring deterministic output state during long input low-impedance intervals without an external clock. Typical applications include industrial fieldbus isolation (RS-485, RS-232, CAN, I2C), microcontroller servo-loop feedback isolation, motor-drive gate-driver signal isolation, and isolated SPI or GPIO interfaces for medical, solar inverter and PLC systems. When designing with this device, place 0.1 uF bypass capacitors on both VDD1 and VDD2 pins within 2 mm of the IC, and route the high-speed signals with 50 ohm controlled impedance. The exposed lead frame pad is electrically floating and must not be connected. This page aggregates drop-in alternatives, parametric comparisons, and design notes not found in the manufacturer datasheet, giving design engineers a single consolidated view for sourcing decisions as of 2026-10-06.
ADUM1401ARWZ - Quad-Channel Digital Isolator | Analog Devices
The ADUM1401ARWZ is a quad-channel digital isolator from Analog Devices, based on iCoupler technology. It provides 4 channels of isolation with 3/1 channel directionality, meaning three channels are forward-direction and one is reverse-direction. The device is housed in a 16-pin SOIC-W (wide body) package and supports data rates up to 1 Mbps. It offers 2500 Vrms isolation voltage and a common-mode transient immunity (CMTI) of 25 kV/µs, making it suitable for industrial and automotive applications where robust isolation is required. A digital isolator is a component that transfers digital signals across an isolation barrier, providing galvanic isolation between two circuits. This prevents dangerous voltage transients, ground loops, and noise from propagating between systems. Digital isolators are essential in applications such as motor drives, power inverters, medical equipment, and communication interfaces, where safety and signal integrity are paramount. They replace traditional optocouplers, offering higher speed, lower power consumption, and better reliability. Key features of the ADUM1401ARWZ include low power operation: 1.0 mA per channel maximum at 5 V operation for data rates up to 2 Mbps, 3.5 mA per channel at 10 Mbps, and 31 mA per channel at 100 Mbps. At 3 V operation, the power consumption is even lower. The device operates over a supply voltage range of 2.7 V to 5.5 V on both sides, and it is specified for the industrial temperature range of -40°C to +105°C. The propagation delay is typically 100 ns, and the device features a default output state of high when the input is unpowered. The ADUM1401ARWZ uses monolithic air core transformer technology combined with high-speed CMOS, providing superior performance compared to optocouplers. The isolation barrier is rated for 2500 Vrms, and the device meets safety standards such as UL 1577 and IEC 60747-5-5. The package is a 16-lead SOIC-W, which is widely used and easy to solder. The device is RoHS compliant and lead-free. Typical applications include industrial field bus isolation, SPI and I2C isolation, motor control, power supply isolation, and isolated data acquisition. The ADUM1401ARWZ is particularly well-suited for isolating microcontroller interfaces in noisy industrial environments, where its high CMTI ensures reliable operation in the presence of fast transients. When designing with this device, ensure that both power supplies are decoupled with 0.1 µF capacitors close to the VDD pins. The input and output grounds must be separated, and the PCB layout should maintain adequate creepage and clearance distances for the isolation rating. The default output state is high, which should be considered in system design to avoid unintended logic states during power-up.
ADUM1401ARWZ-RL7 - Quad Digital Isolator 1Mbps | Analog Devices
The ADUM1401ARWZ-RL7 is a quad-channel digital isolator from Analog Devices, based on iCoupler technology. It provides 3/1 channel directionality, meaning three channels are forward-direction and one is reverse-direction. The device is housed in a 16-pin SOIC-W (wide body) package and is rated for 2500Vrms isolation voltage. It supports data rates up to 1Mbps and offers a common-mode transient immunity (CMTI) of 25kV/µs. The operating supply voltage ranges from 2.7V to 5.5V, making it compatible with a variety of logic levels. A digital isolator is a component that provides electrical isolation between two circuits while allowing digital signals to pass across the isolation barrier. Unlike optocouplers, which use LEDs and photodiodes, iCoupler technology uses monolithic air core transformers and high-speed CMOS to achieve isolation. This results in superior performance characteristics such as higher data rates, lower power consumption, and better reliability. Digital isolators are essential in applications where ground potential differences, noise, or safety requirements demand galvanic isolation, such as in industrial automation, medical equipment, and communication systems. Key features of the ADUM1401ARWZ-RL7 include its 2500Vrms isolation rating, 1Mbps data rate, and 25kV/µs CMTI. The device operates over a wide temperature range of -40°C to +105°C and is RoHS compliant. The wide-body SOIC-16 package provides adequate creepage and clearance distances for high-voltage isolation. The device also features an enable pin for output control, which can be used to place outputs in a high-impedance state. Technically, the ADUM1401 uses Analog Devices' iCoupler technology, which integrates micro-transformers on a CMOS die. This architecture eliminates the need for external components and provides a more reliable isolation solution compared to optocouplers. The device has a propagation delay of approximately 100ns and a pulse width distortion of 40ns, ensuring accurate signal transmission. The output default state is HIGH, which is important for safety-critical applications where a fail-safe state is required. Typical applications include industrial fieldbus isolation, SPI isolation, RS-485 isolation, and general-purpose signal isolation in motor drives, power inverters, and medical devices. The ADUM1401 is particularly suited for applications requiring high reliability and low power consumption. When designing with this device, ensure proper PCB layout to maintain isolation spacing and place decoupling capacitors close to the VDD pins. Also, consider the default output state (HIGH) when designing fail-safe circuits.
ADUM1401CRWZ - 4-Ch 90Mbps Digital Isolator 2.5kV | ADI
The Analog Devices ADUM1401CRWZ is a quad-channel digital isolator based on Analog Devices iCoupler technology, providing 4 unidirectional isolation channels at up to 90 Mbps data rate in a 16-pin wide-body SOIC package with 2500 Vrms isolation. It combines high-speed CMOS and monolithic air-core transformer technology, delivering performance characteristics that outperform optocoupler-based alternatives by eliminating LEDs and photodiodes from the signal path. A digital isolator is an interface IC that transfers logic-level signals across a galvanic isolation barrier using magnetic, capacitive, or optical coupling rather than a direct electrical connection. Digital isolators sit at the boundary between hazardous and safe voltage domains, isolating high-voltage transients (such as motor drive switching edges, grid-line transients, or medical-patient leakage paths) from low-voltage logic that would otherwise be damaged. In the broader component hierarchy, the ADUM1401 belongs to the digital isolator category, which is itself a sub-category of interface ICs and broader signal-conditioning/isolation devices used in power management, motor control, and industrial communication systems. Key features include 90 Mbps guaranteed data rate (CRWZ grade), 25 kV/µs common-mode transient immunity (CMTI), 32 ns typical propagation delay, 2.7 V to 5.5 V wide supply range on both sides, and per-channel current draw of 1.0 mA at 0-2 Mbps / 31 mA at 100 Mbps at 5 V. Default channel direction is 3-out / 1-in (the ADUM1400 variant reverses to 0-out / 4-in while ADUM1402 swaps mid-channel orientation). The wide-body 16-SOIC (RWZ) package provides the required creepage/clearance for 2500 Vrms reinforced isolation per UL 1577 and IEC 60747-17. The architecture uses four separate transformer channels monolithically integrated on-chip, driven by an internal oscillator and edge-detect encoder on the primary side and decoded by a comparator/latch network on the secondary side. Refresh pulses are sent periodically to maintain DC correctness, with explicit one-cycle latency per channel direction. Typical applications include RS-232/RS-485 transceiver isolation, SPI interface isolation between MCU and ADC, isolated gate-drive signal paths in motor drives and solar inverters, industrial 4-20 mA loop isolation, and medical equipment patient-isolation barriers. Designers should provide 0.1 µF bypass capacitors on each VDD pin placed within 2 mm of the IC, observe wide-body SOIC PCB creepage of at least 8 mm to maintain rated isolation, and consider ADUM1400/ADUM1402 if different default channel orientations are required. This page synthesizes cross-brand drop-in equivalents, parametric comparison against the ADUM1400/1402 family, and practical PCB creepage/decoupling guidance not consolidated in the manufacturer datasheet.
ADUM1402BRWZ - 4-Ch 2/2 Digital Isolator 10Mbps 16-SOIC | Analog Devices
The Analog Devices ADUM1402BRWZ is a quad-channel digital isolator with 2/2 channel directionality based on Analog Devices iCoupler® technology. Combining high-speed CMOS and monolithic air-core transformer technology, the device delivers up to 10 Mbps data rate, 2500 Vrms isolation, and 25 kV/µs common-mode transient immunity (CMTI) in a 16-pin SOIC-W (0.295"/7.5 mm width) package. It operates with supply voltages from 2.7 V to 5.5 V on either side, supporting voltage translation across the isolation barrier. A digital isolator is an integrated circuit that transfers logic-level signals between two galvanically isolated voltage domains using a non-galvanic barrier. Unlike optocouplers, which use LED-photodiode pairs to cross the isolation gap, iCoupler devices embed miniature air-core transformers on-chip. This category sits within signal isolation, in the broader interface IC taxonomy, and is foundational to industrial, automotive, and medical systems that must satisfy IEC 60730, IEC 60950, or IEC 62368 safety and creepage requirements. Key features of the ADUM1402BRWZ include low dynamic power consumption (1.0 mA per channel at 0 Mbps scaling up to 31 mA per channel at 100 Mbps), tight channel-to-channel matching, and an SOIC-16W footprint with 8 mm of creepage - sufficient for 250 Vrms reinforced isolation per UL 1577. The 2/2 directionality places two channels running side-1 to side-2 and two channels running side-2 to side-1, allowing bidirectional UART, SPI, or RS-485-style signaling in a single chip. Technically, the iCoupler architecture pairs CMOS drivers with on-die transformers wound around a planar air core. Differential signaling across the transformer, with refresh pulses on every DC transition, eliminates LED-aging concerns and produces <2 ns pulse-width distortion at 5 V operation. The monolithic air core gives superior CMTI (>25 kV/µs) compared to optocouplers, which typically achieve only 10-15 kV/µs. Typical applications include isolated SPI/UART interfaces in PLCs, isolated gate-driver signal paths in motor drives, battery management isolation in EV chargers, and medical-device patient-isolated data acquisition. The wide supply range and translation capability make it equally at home between 3.3 V MCUs and 5 V sensors. When laying out the PCB, provide at least 8 mm of creepage between the side-1 and side-2 copper pours, place 0.1 µF VDD bypass capacitors within 2 mm of each supply pin, and avoid routing any side-1 trace beneath the side-2 plane. This prevents contamination of the 2500 Vrms barrier by stray flux or contamination. This page synthesizes distributor pricing, drop-in pin-compatible alternatives, application notes, and practical design guidance not aggregated on the manufacturer datasheet alone - giving the engineer a one-stop sourcing reference for the ADUM1402BRWZ.
ADUM1402CRWZ-RL - 4-Ch 90Mbps Digital Isolator SOIC-16 | ADI
The Analog Devices ADUM1402CRWZ-RL is a quad-channel digital isolator based on Analog Devices' iCoupler technology, delivering 90 Mbps data rate with 2/2 channel directionality in a 16-pin SOIC-W (7.5 mm) package. It provides 2500 Vrms isolation with 25 kV/µs common-mode transient immunity (CMTI), combining high-speed CMOS and monolithic air-core transformer technology on a single die. What is a digital isolator? A digital isolator is a semiconductor device that transfers logic signals across an isolation barrier while blocking high voltages, galvanically separating grounds between systems. Digital isolators belong to the broader category of signal isolation ICs, which also includes optocouplers (LED + photodiode) and capacitive-coupled isolators. iCoupler technology uses chip-scale transformers with air-core windings, replacing LEDs and photodiodes with magnetic coupling. This eliminates LED degradation, reduces power consumption, improves data-rate capability (Mbps vs Mb), and provides tighter pulse-width distortion than optocouplers. Within the iCoupler family, the ADuM14xx series provides four isolation channels with various directionality options. Key features of the ADUM1402CRWZ-RL include 32 ns maximum propagation delay (tpLH/tpHL matched), 2 ns maximum pulse-width distortion, 2.5 ns typical rise/fall time, and operation from 2.7 V to 5.5 V on both sides of the barrier enabling voltage translation across isolation. The C grade indicates a 90 Mbps data rate. Low-power operation scales with data rate - 1.0 mA per channel at 0-2 Mbps, 3.5 mA at 10 Mbps, and 31 mA at 100 Mbps equivalent. The 16-pin SOIC-W (RW-16) package supports surface-mount assembly. The ADUM1402CRWZ-RL is widely used in industrial fieldbus isolation (RS-485, RS-232, CAN, SPI, I2C), motor drive gate-driver signal isolation, medical equipment patient-isolation interfaces, and renewable-energy inverter control. The high CMTI rating allows reliable operation in noisy switching environments where fast-rising common-mode transients would otherwise corrupt data in slower optocouplers. When designing, observe the recommended decoupling capacitor placement, ensure VDD1 and VDD2 supplies are well regulated (isolated domains), and respect the 16-pin SOIC-W 7.5 mm body footprint to avoid PCB layout errors. This page synthesizes distributor pricing, drop-in alternatives, and practical isolation design notes not found in the manufacturer datasheet alone.
ADUM140D0BRZ - Quad 150Mbps Digital Isolator 3kV | Analog Devices
The Analog Devices ADUM140D0BRZ is a quad-channel digital isolator based on the proprietary iCoupler technology, delivering 3000 Vrms isolation with 150 Mbps data rate per channel in a 16-pin SOIC-N (0.154", 3.90 mm body) package. It provides 4:0 channel directionality (four forward, zero reverse), 75 kV/µs common-mode transient immunity (CMTI), and robust CMOS output stages, making it well suited for industrial bus isolation, SPI/serial-peripheral isolation, and RS-485/RS-232 isolation in noisy environments. Digital isolators using iCoupler technology combine high-speed CMOS with monolithic air-core transformers to transmit data across an isolation barrier using transformer-coupled magnetic fields rather than optical (LED/photodiode) coupling. Compared to optocouplers, iCoupler parts offer higher data rates (150 Mbps versus tens of kbps typical), tighter channel-to-channel matching, lower dynamic power consumption, and integrated fail-safe options that guarantee a deterministic output state when input power is removed. The ADUM140D family sits in the digital isolator -> isolator -> interface IC -> signal chain hierarchy within the broader interface and connectivity taxonomy. Key specifications include a 3.0 kVrms / 3.75 kVrms reinforced isolation rating per UL 1577 / IEC 60747-17 standards, a wide 1.7 V to 5.5 V supply range that supports level translation across mixed-voltage rails, and a propagation delay of approximately 13 ns typical. The integrated DC correctness ensures valid logic levels at the output even during prolonged input quiescence, addressing a long-standing optocoupler weakness. Two fail-safe modes are available: Pin 2 = DISABLE1 (high-Z output on Side 1 disable) and Pin 10 = NIC (default low output on Side 2). Typical applications span industrial fieldbus isolation (PROFIBUS, Modbus, CAN), USB and RS-232/RS-485 transceiver isolation, microcontroller SPI/UART interface isolation, and battery management systems requiring high-voltage galvanic isolation. Designers select this part for environments where switching-mode converters and motor drives inject high dV/dt noise across grounds, and where high-speed digital signaling must traverse a safety barrier. Design considerations include bypassing each supply pin with a 0.1 µF ceramic capacitor placed as close as possible to the IC, ensuring PCB creepage and clearance support the rated isolation voltage, and verifying the fail-safe variant (D0 = Pin 2 DISABLE1 active, Pin 10 NIC) matches system startup behavior. Compared to LED-based optocouplers, the ADUM140D0BRZ eliminates LED aging, current-limiting resistor selection, and slow rising-edge propagation delay. This page synthesizes distributor pricing as of 2026-10-06, same-brand drop-in alternatives from the ADuM140D family, cross-brand equivalent options verified from web data, and practical design notes not consolidated on the manufacturer product page.
ADUM140D1BRZ - 150Mbps Quad Digital Isolator | Analog Devices
The Analog Devices ADUM140D1BRZ is a 4-channel general-purpose digital isolator rated at 3000 Vrms with a 150 Mbps maximum data rate and 75 kV/us common-mode transient immunity (CMTI), housed in a 16-pin SOIC (0.154", 3.90 mm width) package. Built on Analog Devices' proprietary iCoupler technology, it transfers data across an isolation barrier using on-chip transformer windings rather than optocouplers' LEDs and photodiodes, eliminating the slow rise/fall times and current-drive requirements inherent to optical coupling. A digital isolator is an integrated circuit that transmits digital signals across a galvanically isolated domain while blocking DC and low-frequency AC, enabling safe interface between high-voltage and low-voltage circuits. Within the broader power management and signal chain hierarchy, digital isolators sit between the optocoupler (legacy) and the digital isolator (modern CMOS), used wherever a logic-level signal must cross a safety-rated barrier. Key features of the ADUM140D1BRZ include four independent isolation channels in a 4:0 directional configuration (four forward, zero reverse), default low output behavior on power-loss (the "1" channel option sets outputs to a deterministic state when input supply is missing), 10 ns typical propagation delay, and 2.5 V / 3.3 V / 5 V level translation on both sides of the barrier. The SOIC-16 wide-body package supports 3 kV rms reinforced isolation per UL 1577 / IEC 60747-17, while the wider SOIC-16W variant supports 3.75 kV rms and 5 kV rms reinforced isolation grades. Architecturally, the device pairs an encoder-side chopper-stabilized oscillator with planar transformer coils and a decoder-side Schmitt-trigger receiver. This topology provides dc-correctness in the absence of input transitions, and the high CMTI ensures reliable operation in noisy industrial environments where fast switching transients appear on the ground reference. Typical applications include SPI/data converter isolation, RS-485/RS-232 transceiver isolation, industrial field bus isolation (CAN, Profibus), and general-purpose multichannel isolation in motor drive, solar inverter, and PLC I/O modules. The wide-body SOIC footprint enables drop-in upgrades from legacy ADuM140x and ADuM141x designs. When designing with this device, place 0.1 uF bypass capacitors adjacent to both VDD pins to decouple the chopper oscillator, and ensure the supply rise-time does not violate the soft-start window. The "1" fail-safe option drives outputs low when input power is absent, making it compatible with systems where a defined reset state is required.
ADUM140D1BRZ-RL7 - 150Mbps Quad Digital Isolator | Analog Devices
The Analog Devices ADUM140D1BRZ-RL7 is a quad-channel digital isolator based on Analog Devices iCoupler technology, delivering 150 Mbps data rate, 3000 Vrms isolation, and 75 kV/us CMTI in a 16-pin SOIC wide-body package. The device combines high-speed CMOS with monolithic air-core transformer technology to provide four independent isolation channels in a unidirectional 4:0 (four transmit, zero receive) configuration. A digital isolator is a semiconductor device that transmits digital signals across an isolation barrier using magnetic, capacitive, or optical coupling while blocking DC and low-frequency AC between the input and output sides. Digital isolators are categorized within the broader signal-isolation hierarchy as: digital isolator -> isolator -> interface IC -> integrated circuit. They are widely used in place of optocouplers to deliver higher speed, lower power, tighter channel-to-channel matching, and superior common-mode transient immunity, which is critical in industrial, medical, and renewable-energy systems that must withstand fast switching transients on the ground reference. Key features include a maximum data rate of 150 Mbps, propagation delay of 13 ns typical, pulse-width distortion of 3 ns maximum, and channel-to-channel matching of 3 ns maximum. The device operates from a 1.8 V to 5 V supply on both sides, supports 3.0 V to 5.5 V level translation, and consumes 11 mA typical per channel at 5 V. Two fail-safe output options are available within the ADuM140D family: the default state-high and the state-low variants are selected by part suffix. The 16-SOIC wide-body package provides a minimum clearance and creepage distance suitable for reinforced insulation at 3000 Vrms working voltage per IEC 60747-17 (VDE 0884-17). The iCoupler architecture uses chip-scale transformers rather than LEDs and photodiodes, eliminating the aging, CTR degradation, and slow response inherent to optocouplers. Each channel contains an encoder/decoder pair and a refresh circuit that maintains DC correctness at the output even in the absence of input transitions, preventing long-term settling errors. Typical applications include isolated SPI/RS-485/RS-232 interfaces, gate driver isolation for IGBT and SiC power modules, isolated A/D and D/A converter data paths, and industrial fieldbus links such as Profibus and CAN. The wide 1.8 V to 5 V logic-side range allows direct connection to microcontrollers, FPGAs, and gate drivers without additional level shifters. When designing with the ADUM140D1BRZ-RL7, observe the recommended decoupling and bypass scheme (0.1 uF plus 10 uF bulk per supply pin) and respect the maximum data rate versus load capacitance trade-off documented in the datasheet timing section. Select the appropriate fail-safe option for your system by suffix (1 = output high when input unpowered). This page synthesizes distributor pricing, drop-in alternatives in the same SOIC-16W footprint, and practical design notes that are not found in the manufacturer datasheet, providing a one-stop engineering reference for selecting the ADUM140D1BRZ-RL7 in new designs and as a drop-in for legacy ADUM1400/ADUM1401 optocoupler replacements.
ADUM1410ARWZ - 4-Channel Digital Isolator 3750Vrms | Analog Devices
The ADUM1410ARWZ is a four-channel digital isolator from Analog Devices, based on iCoupler technology. It provides galvanic isolation up to 3750Vrms, with a data rate of 1Mbps and common-mode transient immunity of 25kV/µs. The device is housed in a 16-pin SOIC-W (0.295", 7.50mm width) package, suitable for space-constrained industrial and communication applications. Digital isolators are components that transfer digital signals across an isolation barrier without a direct electrical connection, using capacitive, inductive, or optical coupling. They are essential in systems where safety, noise immunity, or ground potential differences require galvanic isolation. The ADUM1410ARWZ uses monolithic air core transformers and high-speed CMOS, offering superior performance compared to optocouplers, including higher data rates, lower power consumption, and better reliability. Key features include low power operation: 1.3mA per channel maximum at 5V operation (0-2Mbps) and 0.8mA per channel at 3V operation. The device supports 3V and 5V supply levels, making it versatile for mixed-voltage systems. With 4 channels, it can isolate multiple signal lines in a single package, reducing board space and component count. The ADUM1410ARWZ is designed for general-purpose isolation, with a wide operating temperature range of -40°C to +125°C. Its 25kV/µs CMTI ensures reliable operation in noisy industrial environments, preventing data corruption from fast transients. The device is RoHS compliant and lead-free, meeting modern environmental standards. Typical applications include industrial fieldbus communication, isolated SPI/UART interfaces, motor control feedback, and power supply monitoring. The high isolation voltage and robust CMTI make it suitable for applications requiring safety isolation, such as medical equipment and grid infrastructure. When designing with the ADUM1410ARWZ, ensure proper PCB layout with adequate creepage and clearance distances to maintain isolation ratings. Bypass capacitors should be placed close to the VDD pins to minimize noise. The device does not require external components for isolation, simplifying design.
ADUM1410ARWZ-RL7 - 4-Ch Digital Isolator 3750Vrms | Analog Devices
The ADUM1410ARWZ-RL7 is a quad-channel digital isolator from Analog Devices, based on iCoupler technology. It provides 3750Vrms isolation with a data rate of 1Mbps and a common-mode transient immunity (CMTI) of 25kV/µs. The device is housed in a 16-pin SOIC-W (0.295", 7.50mm width) package, suitable for surface-mount assembly. It operates over a supply voltage range of 2.7V to 5.5V and a temperature range of -40°C to +105°C. Digital isolators are components that transfer digital signals across an isolation barrier without a direct electrical connection, using capacitive, inductive, or optical coupling. They are essential in systems where galvanic isolation is required for safety, noise immunity, or ground potential differences. The ADUM1410 uses iCoupler technology, which employs monolithic air-core transformers and high-speed CMOS, offering advantages over optocouplers such as higher data rates, lower power consumption, and better reliability. Key features of the ADUM1410ARWZ-RL7 include four independent isolation channels, a maximum data rate of 1Mbps, and a CMTI of 25kV/µs, ensuring reliable operation in noisy industrial environments. The device supports a wide supply range and features a default output state of high when the input power is not applied, which is critical for fail-safe designs. The package is a 16-lead SOIC-W, which is industry-standard and easy to integrate. Technically, the ADUM1410 uses a refresh mechanism to maintain output states during DC input, and it provides a propagation delay of approximately 100ns. The device is designed to meet UL 1577, IEC 60747-5-2, and CSA standards, ensuring compliance with international safety regulations. The isolation barrier provides reinforced insulation, making it suitable for applications requiring high isolation ratings. Typical applications include industrial fieldbus communication, motor control, power inverters, and isolated SPI/UART interfaces. The device is also used in medical equipment, where patient safety requires galvanic isolation. Its high CMTI and low propagation delay make it ideal for high-speed data acquisition systems. When designing with the ADUM1410, ensure proper PCB layout with adequate creepage and clearance distances for the isolation barrier. Place bypass capacitors close to the VDD pins, and consider the output load capacitance to maintain signal integrity. The device does not require external components for isolation, simplifying design.
ADUM1411ARWZ - Quad-Channel Digital Isolator | Analog Devices
The ADUM1411ARWZ is a quad-channel digital isolator from Analog Devices, utilizing iCoupler® technology to provide galvanic isolation up to 3750Vrms. It is housed in a 16-lead SOIC-W (wide body) package and supports data rates up to 1Mbps with a common-mode transient immunity (CMTI) of 25kV/µs. The device operates from a 2.7V to 5.5V supply on each side, making it versatile for multi-voltage systems. Digital isolators are components that transmit digital signals across an isolation barrier, preventing DC and noise from passing while allowing data to flow. They are essential in applications requiring safety isolation, ground loop breaking, and level shifting. The ADUM1411ARWZ belongs to the family of digital isolators, which are part of the broader category of interface ICs, used in industrial, medical, and communication systems. Key features include four independent isolation channels with a channel configuration of 3/1 (three forward, one reverse), a maximum data rate of 1Mbps, and a propagation delay of typically 100ns. The device offers a wide operating temperature range of -40°C to +125°C and is RoHS compliant. Its iCoupler technology replaces optocouplers, offering higher reliability, lower power consumption, and better timing accuracy. The ADUM1411ARWZ uses a proprietary magnetic isolation technique, combining high-speed CMOS and monolithic air core transformers. This architecture provides superior performance compared to optocouplers, including faster data rates, lower jitter, and no LED degradation over time. The device also features an enable pin for each side, allowing flexible control of the output states. Typical applications include industrial field bus isolation, SPI/RS-232/RS-485 isolation, motor control, and power supply isolation. Its high CMTI makes it suitable for noisy environments where fast transients are present. The wide supply range allows interfacing with both 3.3V and 5V logic. When designing with this device, ensure proper PCB layout with adequate creepage and clearance distances to maintain the isolation rating. Bypass capacitors should be placed close to the VDD pins to ensure stable operation.
ADUM1411ARWZ-RL7 - Quad Digital Isolator 3750Vrms | Analog Devices
The ADUM1411ARWZ-RL7 is a four-channel digital isolator from Analog Devices, based on iCoupler technology. It provides galvanic isolation up to 3750Vrms, with a data rate of 1Mbps and common-mode transient immunity (CMTI) of 25kV/µs. The device is housed in a 16-lead SOIC wide body (SOIC-16W) package, suitable for surface-mount assembly. It operates over a wide supply voltage range and is designed for general-purpose isolation in industrial, medical, and communication systems. Digital isolators are components that transmit digital signals across an isolation barrier, preventing DC and noise from passing between two ground domains. They are essential in systems where safety, noise immunity, or ground potential differences are critical. Unlike optocouplers, which use LEDs and photodiodes, iCoupler devices use monolithic air-core transformers, offering higher speed, lower power, and better reliability. Digital isolators are a subset of isolation components, which also include isolated amplifiers and isolated power supplies. Key features of the ADUM1411ARWZ-RL7 include four independent isolation channels with a 3/1 channel directionality (three forward, one reverse), 3750Vrms isolation voltage, 1Mbps data rate, and 25kV/µs CMTI. The device operates from a 2.7V to 5.5V supply on each side, making it compatible with various logic levels. It also features low propagation delay and pulse width distortion, ensuring signal integrity in high-speed applications. The ADUM1411ARWZ-RL7 uses iCoupler technology, which integrates CMOS and monolithic air-core transformer technology. This architecture provides superior performance compared to optocouplers, including higher data rates, lower power consumption, and longer operational life. The device also includes a refresh mechanism to maintain output states when inputs are static, ensuring reliable operation in all conditions. Typical applications include industrial fieldbus isolation, medical equipment isolation, isolated SPI/UART interfaces, and power supply control. The device is particularly suited for systems requiring robust isolation with high noise immunity, such as motor drives and PLCs. Its wide supply range and high CMTI make it ideal for harsh industrial environments. When designing with this device, ensure proper PCB layout with adequate creepage and clearance distances for the isolation barrier. Place decoupling capacitors close to each supply pin, and consider the maximum data rate and CMTI requirements of your application to ensure reliable operation.
ADUM141D - Quad Digital Isolator, 150Mbps | Analog Devices
The ADUM141D is a quad-channel digital isolator from Analog Devices, based on iCoupler technology. It combines high-speed CMOS and monolithic air core transformer technology to provide outstanding performance superior to optocoupler alternatives. The device offers a 3:1 channel configuration (three forward channels and one reverse channel) with an input disable function, enabling flexible bidirectional isolation in a single package. It is available in a 16-lead SOIC package and supports data rates up to 150 Mbps, with a common-mode transient immunity (CMTI) of 75 kV/µs (for the BRWZ variant) or 100 kV/µs (for the automotive-qualified variants). The ADUM141D operates over a wide supply range of 1.8 V to 5.5 V, providing level translation across the isolation barrier, and is specified for operation from -40°C to +125°C. Digital isolators are electronic components that transmit digital signals across an isolation barrier, providing galvanic isolation to protect circuits from high voltages, ground loops, and noise. They are essential in applications where safety and signal integrity are critical, such as industrial automation, medical equipment, and communication systems. Unlike optocouplers, digital isolators offer higher speed, better timing accuracy, and longer lifespan, making them the preferred choice for modern designs. Key features of the ADUM141D include a maximum propagation delay of 13 ns and pulse width distortion of less than 3 ns at 5 V operation, ensuring precise signal transmission. The device also features fail-safe high or low output options, which define the output state when the input power is not applied or inputs are disabled, enhancing system safety. The input disable function allows the outputs to be placed in a high-impedance state, useful for multiplexing or power saving. The device is RoHS compliant and supports high-temperature operation up to 125°C, making it suitable for harsh environments. The ADUM141D uses iCoupler technology, which employs chip-scale transformer coils separated by polyimide insulation layers. This architecture ensures dc correctness in the absence of input logic transitions, a significant advantage over optocouplers that require continuous input current. The device also provides low dynamic power consumption, making it energy-efficient for battery-powered applications. Typical applications include general-purpose multichannel isolation, serial peripheral interface (SPI) isolation, data converter isolation, and industrial fieldbus communication. The high CMTI and fast data rates make it ideal for motor control, power inverters, and isolated ADC/DAC interfaces. When designing with the ADUM141D, ensure proper PCB layout with adequate creepage and clearance distances for the required isolation rating. Place decoupling capacitors close to the VDD1 and VDD2 pins to minimize noise. The input disable pins (DISABLE1 and DISABLE2) can be used to control the outputs, but must be handled carefully to avoid unintended state changes.
ADUM141D0BRWZ - 4-Ch 150Mbps Digital Isolator | Analog Devices
The ADUM141D0BRWZ is a quad-channel digital isolator from Analog Devices, based on the proprietary iCoupler technology. It provides 3.75 kV RMS isolation with a data rate of up to 150 Mbps, making it suitable for high-speed signal isolation in industrial, medical, and communication systems. The device is offered in a 16-lead SOIC-W (wide body) package, which is pin-compatible with other members of the ADuM141D family. Digital isolators are components that transfer digital signals across an isolation barrier without a direct electrical connection, using capacitive or magnetic coupling. They are essential in applications where ground potential differences, noise, or safety requirements demand galvanic isolation. The ADUM141D0BRWZ uses iCoupler technology, which combines high-speed CMOS and monolithic air core transformers to achieve superior performance compared to optocouplers, including higher data rates, lower power consumption, and better reliability. Key features of the ADUM141D0BRWZ include a 3:1 channel configuration (three forward and one reverse channel), a wide supply voltage range of 1.7V to 5.5V, and a high common-mode transient immunity (CMTI) of 75 kV/µs. The device also features a default output state of low (0) on the reverse channel, which is indicated by the '0' in the part number. The propagation delay is typically 7.2 ns, and the device operates over a temperature range of -40°C to +125°C. The ADUM141D0BRWZ is designed for general-purpose multichannel isolation, SPI/data converter isolation, and industrial field bus isolation. Its high data rate and robust isolation make it ideal for applications such as motor drives, power inverters, and medical equipment where signal integrity and safety are critical. The wide supply voltage range allows operation from both 3.3V and 5V systems, simplifying design. When designing with the ADUM141D0BRWZ, it is important to ensure proper power supply decoupling with 0.1 µF capacitors close to the VDD1 and VDD2 pins. The input and output sides are isolated, so separate ground planes are required. The device is RoHS compliant and lead-free, meeting environmental standards for modern electronic designs.
ADUM141D0BRWZ-RL7 - Quad Digital Isolator 150Mbps | Analog Devices
The ADUM141D0BRWZ-RL7 is a quad-channel digital isolator from Analog Devices, utilizing iCoupler technology to combine high-speed CMOS and monolithic air core transformer technology. It provides outstanding performance superior to optocouplers and other integrated couplers. This device offers 4 channels with a 3:1 channel directionality (three forward, one reverse), supporting data rates up to 150 Mbps. It is housed in a 16-lead SOIC-W (wide body) package with 3750 Vrms isolation rating and 75 kV/µs common-mode transient immunity (CMTI). The operating voltage range is 1.7 V to 5.5 V on both VDD1 and VDD2, making it suitable for low-voltage applications. The ADUM141D0BRWZ-RL7 is designed for robust communication in harsh environments, ensuring signal integrity across isolation barriers. A digital isolator is a device that transfers digital signals between two electrically isolated domains, preventing DC current flow while allowing AC signal transmission. It is a critical component in systems requiring galvanic isolation for safety, noise immunity, or ground potential differences. Digital isolators are part of the broader category of isolation components, which also include optocouplers and magnetic isolators. They are essential in industrial automation, medical equipment, and communication systems where signal integrity and safety are paramount. Key features of the ADUM141D0BRWZ-RL7 include its high data rate of 150 Mbps, low propagation delay, and high CMTI of 75 kV/µs, which ensures reliable operation in noisy environments. The device supports a wide supply voltage range from 1.7 V to 5.5 V, enabling compatibility with various logic levels. The 3:1 channel configuration (three forward, one reverse) is ideal for applications requiring bidirectional communication with a primary data direction. The SOIC-16 wide body package provides excellent thermal performance and is suitable for automated assembly. Technically, the ADUM141D0BRWZ-RL7 uses iCoupler technology, which integrates micro-transformers on a CMOS die, offering advantages over optocouplers such as higher speed, lower power consumption, and better reliability. The device features a robust design that ensures safe communication in harsh environments, with a wide operating temperature range of -40°C to +125°C. It is RoHS compliant and lead-free, meeting environmental standards. Typical applications include industrial fieldbus communication, isolated SPI interfaces, motor control, and power inverter systems. The high data rate and CMTI make it suitable for high-speed data acquisition and control systems. The wide supply range allows direct interface with 1.8V, 2.5V, 3.3V, and 5V logic, simplifying system design. When designing with this device, ensure proper PCB layout with adequate creepage and clearance distances for the isolation rating. Place decoupling capacitors close to the VDD pins to minimize noise. The device does not require external components for isolation, but proper grounding of the two isolated grounds is essential for optimal performance.
ADUM141D1BRWZ - Quad Digital Isolator 150Mbps | Analog Devices
The ADUM141D1BRWZ is a quad-channel digital isolator from Analog Devices, based on the proprietary iCoupler technology. It provides 3.75 kV RMS isolation with a data rate of up to 150 Mbps and a common-mode transient immunity (CMTI) of 75 kV/µs. The device is housed in a 16-lead SOIC-W (wide body) package, offering a compact solution for isolating digital signals across a power barrier. A digital isolator is a component that transfers digital signals between two isolated domains, providing galvanic isolation to protect against voltage transients, ground loops, and noise. It replaces optocouplers in many applications, offering higher speed, lower power consumption, and better reliability. Digital isolators are essential in industrial automation, medical equipment, and communication systems where safety and signal integrity are critical. Key features of the ADUM141D1BRWZ include a 3:1 channel configuration (three forward channels and one reverse channel), a wide supply voltage range of 1.7V to 5.5V on both sides, and a fail-safe output state that defaults to high when the input power is absent. The device supports data rates up to 150 Mbps, making it suitable for high-speed serial interfaces such as SPI and UART. The CMTI of 75 kV/µs ensures reliable operation in noisy environments, preventing erroneous data transmission during fast voltage transients. The ADUM141D1BRWZ uses iCoupler technology, which combines high-speed CMOS and monolithic air-core transformer technology. This architecture provides superior performance compared to optocouplers, including lower power consumption, higher data rates, and better timing accuracy. The device also features a default output state that can be configured to high or low, allowing designers to choose the safe state for their application. Typical applications include industrial fieldbus communication, isolated SPI interfaces, motor control, and medical monitoring equipment. The wide supply voltage range and high data rate make it versatile for various isolation requirements. The device is also pin-compatible with other ADuM14x series isolators, enabling easy upgrades or downgrades in channel configuration. When designing with the ADUM141D1BRWZ, ensure proper PCB layout with adequate creepage and clearance distances for the isolation barrier. Place decoupling capacitors close to the VDD1 and VDD2 pins to minimize noise. The device is RoHS compliant and suitable for surface-mount assembly.
ADUM141D2BRWZ - Quad Digital Isolator, 150Mbps | Analog Devices
The ADUM141D2BRWZ is a quad-channel digital isolator from Analog Devices, based on the proprietary iCoupler® technology. It provides 3.75 kV RMS isolation with a data rate of 150 Mbps and a common-mode transient immunity (CMTI) of 75 kV/µs. The device is housed in a 16-lead SOIC package with 7.50 mm width (SOIC-16W), suitable for high-speed signal isolation in industrial and communication systems. A digital isolator is a component that transfers digital signals across an isolation barrier, providing galvanic isolation to protect circuits from high voltages, ground loops, and noise. It replaces optocouplers in many applications, offering higher speed, lower power consumption, and better reliability. Digital isolators are essential in systems where safety and signal integrity are critical, such as in motor drives, power converters, and medical equipment. Key features of the ADUM141D2BRWZ include a channel configuration of 3 forward and 1 reverse (3:1), input disable function, and a default output state of high (as indicated by the '2' in the part number). The device operates over a supply voltage range of 3.0 V to 5.5 V on both sides, with a maximum propagation delay of [DATA_NEEDED: propagation delay] ns. It is rated for industrial temperature range from -40°C to +125°C, making it suitable for harsh environments. The ADUM141D2BRWZ uses iCoupler technology, which combines high-speed CMOS and monolithic air core transformers to achieve superior performance compared to optocouplers. This technology provides precise timing, low power consumption, and high reliability. The device also features a refresh mechanism to ensure output stability even when the input is static, and it supports a wide data rate range from DC to 150 Mbps. Typical applications include industrial fieldbus communication, isolated SPI interfaces, motor control, and power supply isolation. The high CMTI of 75 kV/µs ensures reliable operation in noisy environments, such as those with fast-switching power transistors. The 3:1 channel configuration is ideal for applications requiring three forward channels and one reverse channel, such as isolated SPI with a slave-select line. When designing with the ADUM141D2BRWZ, ensure proper decoupling capacitors (0.1 µF) are placed close to each VDD pin. The input disable function can be used to force the output to a defined state, which is useful for system reset or fault conditions. Also, consider the propagation delay and pulse width distortion when designing high-speed communication links.
ADUM141E1BRZ-RL7 - 4-Ch 150Mbps Digital Isolator | Analog Devices
The Analog Devices ADUM141E1BRZ-RL7 is a quad-channel digital isolator based on iCoupler technology, delivering 150 Mbps data rate, 3000 Vrms isolation, and 75 kV/us minimum common-mode transient immunity (CMTI) in a 16-pin SOIC-N (RW-16) wide-body surface-mount package. It uses monolithic air-core transformer technology combined with high-speed CMOS, providing four independent isolation channels in a 3:1 channel-direction configuration (three forward, one reverse). A digital isolator is an integrated circuit that transfers data across an isolation barrier (typically several kilovolts) using semiconductor-based techniques rather than optical coupling. In the broader component hierarchy, digital isolators belong to the signal-isolation family, sitting between optocouplers (older LED/photodiode technology) and modern magnetic or capacitive isolators. They are critical safety and signal-integrity components in any system where low-voltage logic must communicate with high-voltage or noise-isolated domains, such as industrial fieldbus, motor drives, and medical patient-connected electronics. Key features include 3.0 kVrms / 3.75 kVrms reinforced isolation per UL 1577, 150 Mbps guaranteed data rate, 75 kV/us CMTI minimum, 4.5 ns typical pulse-width distortion, 2 ns channel-to-chip jitter, and 1.7 V to 5.5 V supply on both primary and secondary chip electronics. The SOIC-16W form is 7.5 mm wide, which is the package family optioned to HI-installation thickness for the soldering process. ADUM141E is a higher-performance-grade option of iCoupler technology recommended over older ADUM1410/1411/1412/1414 families when designers need higher CMTI and tighter jitter. Typical applications include isolated SPI/UART between an MCU and a high-side gate driver in motor drives, isolated digital feedback in a solar inverter, isolated RS-485 bus nodes, and isolated data acquisition in a medical patient monitor. The wide input voltage (3.0V to 5.5V on both sides) covers standard logic rails, and the high CMTI permits routing through fast-switching power stages without false triggering. The ADUM141E series was specifically designed to directly replace the ADUM1410/1411/1412/1414 in most designs. When designing with this part, ensure the VDD1 and VDD2 supplies are properly bypassed with 0.1 uF capacitors placed within 2 mm of the supply pins. Note that the input pins on either chip side have internal weak pull-down; if your driving source is open-drain, an external pull-up of 10 kohm to the corresponding VDD is required. The R suffix in the part number indicates tape and reel packaging for high-volume assembly. This page synthesizes distributor pricing, verified drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone, giving the design engineer a single reference for selecting and qualifying ADUM141E1BRZ-RL7 in safety-critical isolation paths.
ADUM141E1WBRWZ-RL - 150Mbps Quad Digital Isolator | Analog Devices
The Analog Devices ADUM141E1WBRWZ-RL is a quad-channel digital isolator based on Analog Devices iCoupler technology, delivering 150 Mbps data rate across 3750 Vrms isolation in a 16-pin wide-body SOIC (RW-16) package. The device combines high-speed CMOS and monolithic air-core transformer technology to provide superior performance characteristics compared with optocouplers and other integrated couplers, including lower power consumption, tighter channel-to-channel matching, and deterministic propagation delay. A digital isolator is a semiconductor device that transfers digital signals across an isolation barrier using chip-scale transformers rather than optical coupling. Digital isolators are categorized under interface ICs and signal isolation components. They replace legacy optocouplers in applications requiring galvanic isolation, providing better CMTI (common-mode transient immunity), longer lifetimes, and lower propagation delay. The ADuM141E family uses 4 channels in a 3:1 channel-direction configuration (3 forward, 1 reverse), with each channel independently isolated by an on-chip transformer. Key features of the ADuM141E include 150Mbps maximum data rate, 75 kV/µs minimum common-mode transient immunity (CMTI), 3.0 kVrms/3.75 kVrms reinforced isolation per UL 1577, and 5 kVrms surge withstand capability. The device operates from 1.7 V to 5.5 V on both sides of the barrier, supports hot-swappable logic levels, and integrates refresh circuits to maintain DC correctness even at zero input. Typical quiescent current is below 1 mA per channel at 1 Mbps, and the default output is high when input supply is missing. Typical applications include industrial fieldbus isolation (RS-485, CAN, SPI, I2C), isolated gate drivers for IGBT and SiC MOSFETs, USB and HDMI signal isolation, isolated ADC/DAC interfaces, and medical device safety isolation. The wide-body SOIC package provides 8 mm creepage/clearance, satisfying reinforced insulation requirements for 230 V AC mains-referenced systems. When designing with the ADuM141E1, place 0.1 µF bypass capacitors close to each VDD1 and VDD2 pin to decouple high-frequency noise. The device is pin-compatible with the older ADuM1410/1411/1412 families in the same RW-16 footprint, allowing direct drop-in upgrades for higher speed and stronger isolation. This page synthesizes distributor pricing, drop-in pin-compatible alternatives, and practical design considerations for the ADuM141E1WBRWZ-RL not found on any single distributor product page.
ADUM1420ARWZ - Quad-Channel Digital Isolator | Analog Devices
The ADUM1420ARWZ is a quad-channel digital isolator from Analog Devices, based on iCoupler technology. It provides 4 channels of isolation with 2500Vrms isolation rating, supporting data rates up to 10 Mbps. The device operates from a 3V to 5.5V supply and is available in a 16-lead SOIC package (0.295" width). It features low power consumption, with 1.0 mA per channel at 0-2 Mbps and 3.5 mA per channel at 10 Mbps for 5V operation. The ADUM1420ARWZ is designed for general-purpose isolation in industrial, medical, and communication systems, offering superior performance compared to optocouplers by eliminating LED and photodiode aging effects. Digital isolators are components that provide electrical isolation between two circuits while allowing digital signals to pass. They are essential in applications where ground potential differences, noise, or safety requirements demand galvanic isolation. The ADUM1420ARWZ uses iCoupler technology, which combines high-speed CMOS and monolithic air core transformers to achieve reliable isolation without the wear-out mechanisms of optocouplers. This makes it a preferred choice for high-reliability systems. Key features include 4/0 channel directionality (all inputs on one side, all outputs on the other), 25kV/µs common-mode transient immunity (CMTI), and a wide operating temperature range of -40°C to +105°C. The device supports both 3V and 5V supplies, making it versatile for mixed-voltage systems. Its low power consumption is critical for power-sensitive designs. The ADUM1420ARWZ is part of the ADuM140x family, which includes variants with different channel configurations and data rates. The 'A' grade indicates a 10 Mbps data rate, while 'B' and 'C' grades offer 25 Mbps and 90 Mbps respectively. The 'RWZ' suffix denotes the 16-lead SOIC package with a 7.50mm body width. Typical applications include industrial fieldbus isolation, medical equipment isolation, isolated SPI/UART interfaces, and power supply control. The device is also suitable for automotive and aerospace systems where reliability and isolation are paramount. When designing with the ADUM1420ARWZ, ensure proper PCB layout with adequate creepage and clearance distances for the required isolation rating. Bypass capacitors should be placed close to the VDD pins to minimize noise. The device does not require external components for isolation, simplifying design.
ADUM1420ARWZ-RL7 - Quad Digital Isolator 2500Vrms | Analog Devices
The ADUM1420ARWZ-RL7 is a quad-channel digital isolator from Analog Devices, based on iCoupler technology. It provides galvanic isolation up to 2500Vrms, with a data rate of 1Mbps and common-mode transient immunity of 25kV/µs. The device is housed in a 16-lead SOIC-W package (0.295" width) and is available in tape and reel packaging (RL7). Digital isolators are components that transfer digital signals across an isolation barrier, preventing DC current flow while allowing AC signals to pass. They are essential in applications requiring safety isolation, ground loop elimination, and level shifting. The ADUM1420 uses monolithic air core transformers and CMOS technology, offering superior performance compared to optocouplers, including higher speed, lower power, and better reliability. Key features include four independent isolation channels, a wide supply voltage range of 3.0V to 5.5V, and a maximum data rate of 1Mbps. The device operates over the industrial temperature range of -40°C to +125°C. Its high common-mode transient immunity of 25kV/µs ensures reliable operation in noisy environments. The ADUM1420's architecture uses iCoupler technology, which integrates micro-transformers on a CMOS die, eliminating the need for LEDs and photodiodes. This results in lower power consumption, higher data rates, and longer lifespan compared to optocouplers. The device also features a default output state that is high when the input power is off, ensuring fail-safe operation. Typical applications include industrial field bus isolation, SPI isolation, RS-232/RS-485 isolation, and general-purpose digital isolation in motor drives, power inverters, and medical equipment. The wide supply range and robust isolation make it suitable for both 3.3V and 5V systems. When designing with the ADUM1420, ensure proper PCB layout with adequate creepage and clearance distances for the isolation barrier. Bypass capacitors should be placed close to the VDD pins to minimize noise. The device is RoHS compliant and lead-free.
ADUM1421ARWZ - Quad-Channel Digital Isolator | Analog Devices
The ADUM1421ARWZ is a quad-channel digital isolator from Analog Devices, based on iCoupler technology. It provides four independent isolation channels with a channel configuration of 2/2 (two forward, two reverse), supporting data rates up to 1 Mbps. The device operates with supply voltages from 2.7 V to 5.5 V on both sides, enabling voltage translation across the isolation barrier. It is housed in a 16-lead SOIC-W package (0.295" width, 7.50 mm body) and provides 2500 Vrms isolation rating with a common-mode transient immunity (CMTI) of 25 kV/µs. A digital isolator is a component that transfers digital signals across an isolation barrier without a direct electrical connection, using capacitive, inductive, or optical coupling. The ADUM1421ARWZ uses Analog Devices' iCoupler technology, which employs monolithic air core transformers to couple signals, offering advantages over optocouplers such as higher data rates, lower power consumption, and better reliability. Digital isolators are essential in systems where galvanic isolation is required for safety, noise immunity, or ground potential differences, such as in industrial automation, medical equipment, and communication interfaces. Key features of the ADUM1421ARWZ include its 2/2 channel configuration (two channels forward, two reverse), 1 Mbps data rate, and 25 kV/µs CMTI. The device supports a wide supply range of 2.7 V to 5.5 V on both VDD1 and VDD2, allowing use in low-voltage systems and enabling level shifting. The isolation barrier provides 2500 Vrms isolation, suitable for many industrial and medical applications. The SOIC-16 package is widely used and easy to integrate into PCB designs. Technically, the ADUM1421ARWZ uses iCoupler technology, which combines high-speed CMOS and monolithic air core transformers. This architecture avoids the LED and photodiode aging issues of optocouplers, providing more stable performance over time and temperature. The device has a propagation delay of approximately 100 ns and a pulse width distortion of 40 ns, ensuring accurate signal transmission. The CMTI of 25 kV/µs ensures reliable operation in noisy environments, preventing false triggering due to fast voltage transients across the isolation barrier. Typical applications include industrial field bus isolation, motor control, power supply isolation, and isolated SPI or UART interfaces. The ADUM1421ARWZ is also suitable for medical equipment requiring patient isolation, and for communication interfaces where ground loops must be avoided. Its low power consumption and small package make it ideal for space-constrained designs. When designing with the ADUM1421ARWZ, ensure proper decoupling capacitors (0.1 µF) are placed close to each VDD pin. The supply voltage on each side must be within the specified range, and the output load capacitance should be limited to avoid excessive propagation delay. For high-voltage isolation, maintain adequate creepage and clearance distances on the PCB.