Interface ICs
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Products (3,400+)
ADP5587ACPZ-R7 - 18-GPIO Mobile I/O Expander | Analog Devices
The Analog Devices ADP5587ACPZ-R7 is a mobile I/O expander and QWERTY keypad controller with 18 GPIOs, an 8×8 keypad matrix, and a 400 kHz I2C interface. It operates from 1.65 V to 3.6 V and is housed in a 24-lead LFCSP-WQ package measuring 4 mm × 4 mm. The device is designed to add key-scanning and general-purpose I/O capacity when a mobile processor has limited GPIO resources. An I/O expander is an interface IC that extends a host processor through a serial bus. The ADP5587 supports eight independently configurable general-purpose inputs and outputs plus keypad matrix functions, placing key scanning and decoding in a compact peripheral. In the system hierarchy, it is an I/O expander, interface IC, and mobile system peripheral. Its 400 kHz I2C rate allows the host to update I/O state while the integrated keypad logic handles scanning. The supplied manufacturer information identifies an 18-GPIO port expander, configurable GPIOs, and an 8-keypad-matrix implementation. It also provides keypad-lock functionality and operation to 3.6 V. These features make the device relevant to QWERTY phones and other compact portable systems where board area and host-pin count are constrained. The part uses an I2C interface with auto-increment, reducing host-side register-access overhead for sequential register updates. Its 2 mm × 2 mm core package description in the manufacturer snippet corresponds to the compact class of device intended for mobile designs, while distributor records identify the ordering code as a 24-LFCSP-WQ, 4 mm × 4 mm package. Exact pin names, electrical limits, and register details require the official datasheet rather than distributor summaries. Typical uses include QWERTY keypad scanning, mobile navigation controls, compact wearable interfaces, portable measurement controls, and industrial panels requiring additional GPIO. The device can reduce direct processor connections, although the I2C bus and interrupt behavior must be checked against the host system requirements. When designing around the ADP5587, first verify the exact ACPZ pinout, exposed-pad connection, voltage limits, and decoupling requirements in the Analog Devices datasheet. Confirm that the host I2C voltage, address configuration, and keypad matrix geometry match the intended board. This page combines verified manufacturer and distributor information, lifecycle context, package details, commercial questions, and engineering-oriented design guidance. It also distinguishes confirmed drop-in alternatives from functional equivalents that may require different packages or pin assignments.
ADP5588ACPZ-R7 - 18-GPIO Mobile Keypad Controller | Analog Devices
The Analog Devices ADP5588ACPZ-R7 is a 3.0 V mobile I/O expander and QWERTY keypad controller with 18 configurable GPIOs, dual light-sensor inputs, and an I2C interface, housed in a 24-LFCSP-WQ package measuring 4 mm × 4 mm. It supports keypad configurations up to 10 × 8 and integrates key scanning, decoding, and interrupt handling to conserve host-processor GPIO resources. An I/O expander is an interface IC that extends the number of digital input and output lines available to a host controller. A keypad controller adds matrix-scanning and event detection, while an I2C interface IC connects compact peripheral logic to a processor bus. Within the hierarchy of interface ICs, this device reduces wiring and pin demand in mobile, wearable, and compact embedded systems. Key features include 18 GPIOs configurable as inputs, outputs, keypad rows, or keypad columns; two dedicated light-sensor inputs; I2C register-read autoincrement; programmable pull-ups; keypad locking; an open-drain interrupt output; and key-press and key-release interrupts. The GPI interrupt also supports programmable levels. These functions allow one controller to handle both a large keypad and additional discrete interface signals. The ADP5588 is designed for low-voltage mobile platforms. Verified manufacturer data specifies operation from 1.8 V to 3.0 V, while one distributor summary separately emphasizes 3.0 V operation. The compact 24-LFCSP-WQ package is suited to space-constrained boards, but its fine pitch requires careful PCB layout and assembly. Its I2C connection reduces host pins, although firmware must configure GPIO direction, pull-ups, interrupt behavior, and keypad dimensions. Typical uses include QWERTY keypad modules, handheld calculators, mobile accessories, wearable controls, light-sensor-equipped keypads, industrial key-entry panels, and custom HMI boards. The device can expand a processor with limited GPIO while providing dedicated key events through its interrupt output. Designers should verify the complete pinout, exposed-pad connection, address configuration, and supported I2C clock and voltage limits in the manufacturer datasheet. Place the device close to the keypad matrix, provide clean local decoupling, route I2C signals away from switching nodes, and validate signal levels and pull-ups across the complete system voltage range. This page consolidates verified distributor availability, manufacturer functionality, packaging data, purchasing information, and application guidance. It distinguishes documented functions from parameters that still require confirmation, helping engineers evaluate the ADP5588ACPZ-R7 without inferring missing electrical values.
ADP5588ACPZ-R7B2 - 18-GPIO Mobile Keypad Controller | Analog Devices
Analog Devices ADP5588ACPZ-R7B2 is a mobile I/O expander and QWERTY keypad controller with 18 configurable GPIOs, a 10 × 8 keypad matrix, dual light-sensor inputs, and an I2C interface, housed in a 24-LFCSP-WQ package measuring 4 mm × 4 mm. A GPIO expander is an interface IC that increases the number of general-purpose input and output lines available to a host processor. A keypad controller is a specialized interface IC that scans a switch matrix, detects key presses and releases, and reports events to the host. The ADP5588 belongs to the broader I/O expander and keypad-scanner hierarchy within interface ICs and semiconductor power-management-adjacent mobile systems. The device supports two principal operating configurations: an 18-GPIO port expander or a 10 × 8 keypad matrix. Its 18 GPIOs can be configured as general-purpose inputs, general-purpose outputs, keypad rows, or keypad columns. Two additional light-sensor inputs at C8 and C9 allow the same device to monitor ambient-light or proximity-related signals. The I2C interface includes register-read autoincrement for efficient sequential register access. The ADP5588 operates from 1.8 V to 3.0 V, making it suitable for low-voltage mobile equipment. Additional features include programmable pull-ups, an open-drain interrupt output, programmable interrupt level, key-press and key-release interrupts, a keypad-lock capability, and a key-event counter. These functions consolidate several discrete peripheral functions into a compact 4 mm × 4 mm LFCSP-WQ package. Typical uses include QWERTY-style mobile phones, compact handheld devices, portable industrial controls, and embedded systems with a matrix keypad and limited host-GPIO availability. The 10 × 8 matrix can scan up to 80 switch positions, while the interrupt mechanism allows the host processor to remain inactive until a key or configured GPIO event occurs. Designers should verify the exact pin assignments, address configuration, pull-up settings, and interrupt polarity against the manufacturer datasheet before layout release. I2C pull-up placement and routing require attention because excessive capacitance or unsuitable resistor values can limit bus rise time. The compact package also demands careful thermal, assembly, and exposed-pad handling in accordance with the manufacturer’s land pattern. This page consolidates verified manufacturer and distributor information, exact source links, application guidance, and drop-in-family alternatives to support faster component selection while clearly identifying parameters for which additional design verification is required.
ADP5588XCPZ-R7 - 18-GPIO Mobile I/O Expander | Analog Devices
The Analog Devices ADP5588XCPZ-R7 is a production 18-GPIO mobile I/O expander and QWERTY keypad controller operating from 1.8 V to 3.0 V in a 24-lead LFCSP-WQ package. It integrates an I2C interface, programmable key-event functions, dual light-sensor inputs, programmable GPIO configurations, and an open-drain interrupt output. The device is designed for keypad and alarm-system interfaces where a compact controller can scan matrix keys, monitor external signals, and report events to a host processor. An I/O expander is an interface IC that increases the number of inputs and outputs available to a host without requiring a processor with a large integrated GPIO package. In the hierarchy of electronic components, the ADP5588 belongs to the interface-IC class, specifically a mobile I/O expander and keypad controller. Its GPIO resources can be configured as general-purpose inputs, general-purpose outputs, keypad rows, or keypad columns, allowing one device to support multiple panel functions. Key features include support for an 18-GPIO port expander or a 10 × 8 keypad matrix, dual light-sensor inputs identified as C8 and C9, I2C register read autoincrement, keypad lock capability, and key-press and key-release interrupts. The open-drain interrupt output supports signaling to a connected controller, while programmable pull-ups and GPI level programmability provide flexibility for panel-level signal conditioning and interrupt behavior. The ADP5588 datasheet identifies the device as a mobile I/O expander and QWERTY keypad controller intended for keypad and alarm-system interfaces. Its 1.8 V to 3.0 V operating range suits low-voltage embedded systems. The I2C host interface reduces the number of dedicated processor pins, and the GPIO/keypad multiplexing helps consolidate keypad scanning, auxiliary input, and output functions into a compact controller. Typical applications include QWERTY keypad panels, alarm-system user interfaces, compact control panels, mobile equipment, and industrial HMI modules. In a keypad implementation, the device can scan matrix rows and columns while generating key-press and key-release events. The dual light-sensor inputs can also support panel functions where analog light sensing is required, although the verified excerpt does not provide their electrical characteristics. Designers should confirm the exact CPZ pin mapping, exposed-pad connection, I2C address configuration, pull-up values, and interrupt polarity in the manufacturer datasheet before layout. Keep I2C traces short, provide the required pull-ups, and account for the open-drain interrupt output. Since this is a digital interface IC, SOA is not applicable.
ADP5588XCPZ-X2-R7 - 18-GPIO Keypad Expander | Analog Devices
The Analog Devices ADP5588XCPZ-X2-R7 is an 18-GPIO I/O port expander and keypad controller with dual light-sensor inputs, I2C connectivity, and programmable key-event interrupts, packaged in a compact 4 mm × 4 mm surface-mount configuration. It operates from 1.8 V to 3.0 V and supports an 18-GPIO arrangement or a 10 × 8 keypad matrix. The supplied manufacturer information also identifies open-drain interrupt output, key-press and key-release interrupts, programmable pull-ups, a key-event counter, and keypad locking as principal device features. An I/O port expander is an interface IC that increases the number of general-purpose input/output lines available to a host processor. The ADP5588 belongs to the GPIO expander and keypad-controller hierarchy within interface ICs. Designed for QWERTY-style mobile phones and other keypad-oriented systems, it offloads matrix scanning, key decoding, light sensing, and interrupt handling from a main application processor whose package-pin budget may be constrained. The device can operate as an 18-GPIO port expander or as a 10 × 8 keypad matrix, allowing the same silicon to support both general-purpose line expansion and dedicated key-scanning duties. Its two light-sensor inputs provide additional peripheral integration in devices that need ambient-light measurement. Programmable pull-ups reduce external resistor requirements, while programmable interrupt behavior helps the host distinguish key presses, key releases, and general GPIO activity. Communication with the host occurs through an I2C interface. The I2C register read autoincrement feature supports efficient sequential register access, which is particularly useful when firmware must scan a keypad, read multiple GPIO states, or update several configuration registers. The open-drain interrupt output supports a shared, wired interrupt arrangement, with pull-up handling required on the host side according to the device implementation. Typical uses include mobile-phone keypad modules, handheld electronic equipment, industrial control panels, access-control keypads, alarm-system interfaces, and compact embedded systems requiring more input/output lines than the host controller can expose directly. It is also applicable to light-controlled user interfaces that need key scanning and analog light sensing within one small package. Designers should allocate the I2C address, pull-up resistors, and interrupt pull-up in the host schematic, then verify that the chosen -X2 ordering option satisfies the product temperature and qualification requirements for the intended application. Although the web data identifies the 4 mm × 4 mm package and tape-and-reel packaging, a complete verified pin map, exact package designation, temperature range, pricing, and lifecycle classification were not included in the supplied records. This product record consolidates the verified manufacturer features, distributor sourcing, functional positioning, and design guidance for the ADP5588XCPZ-X2-R7. It also clearly separates documented capabilities from unavailable pricing, pinout, compliance, and drop-in replacement data so engineers can make sourcing and design decisions without treating unverified assumptions as manufacturer specifications.
ADP5589ACBZ-00-R7 - 19-IO Keypad Decoder | Analog Devices
The Analog Devices ADP5589ACBZ-00-R7 is a 19-channel general-purpose input/output port expander with an integrated keypad matrix decoder, programmable logic, reset logic, and PWM generator, supplied in a 25-ball WLCSP package. The device operates from a 1.65 V to 3.6 V supply and can decode a keypad matrix as large as 11 rows by 8 columns. An I/O expander increases the number of digital inputs and outputs available to a host processor without requiring a large microcontroller package. The ADP5589 adds hardware-assisted keypad scanning to that conventional GPIO-expansion role, reducing firmware overhead in keypress, key-release, and keypad-lock applications. Its I/O pins can alternatively be programmed as GPI, GPO, or interrupt-capable inputs. Key features include 19 configurable I/Os, a 16-element event FIFO, key press and release interrupts, selectable interrupt levels, programmable 100 kΩ or 300 kΩ pull-up resistors, and 300 kΩ pull-down resistors. General-purpose outputs support push-pull or open-drain operation. Two programmable logic blocks extend the device beyond passive GPIO expansion, while internal and external PWM functions add mixed-signal timing capability. The ADP5589 is designed for portable equipment such as phones, remote controls, and cameras, as well as healthcare, industrial, and instrumentation systems. The serial interface reduces the number of host pins required when a design contains a matrix keypad, indicator LEDs, or additional control signals. Because the CBZ package is only 25 balls in an area smaller than most leaded packages, careful PCB layout is required for soldering, fanout, and signal integrity. Designers should verify I/O voltage limits, configure pull resistors for their external circuit, and reserve the interface pins for I2C communication and address selection. A 16-entry FIFO helps absorb asynchronous key events, but the host firmware must still process overflow and interrupt status. Because no verified cross-brand pin-compatible substitute was identified for the 25-ball CBZ footprint, replacement decisions should be based on an actual land-pattern and pin-function comparison rather than a similar GPIO-expander feature list. This page combines verified Analog Devices product information with distributor availability references, package analysis, application guidance, and a strict same-footprint replacement assessment that is not available from the manufacturer datasheet alone.
ADP5589ACBZ-01-R7 - 19 GPIO Channels | ADI Keypad Decoder
Analog Devices ADP5589ACBZ-01-R7 is a 19-channel GPIO port expander with an integrated keypad matrix decoder, programmable logic, reset logic, and PWM generator in a 25-ball WLCSP package measuring 1.99 mm by 1.99 mm. An I/O expander is an interface IC that increases the number of general-purpose inputs and outputs available to a host processor. In the product hierarchy, the ADP5589 belongs to the GPIO port expander and interface IC family, where it combines digital I/O expansion with dedicated keypad-scanning and event-management functions. This integration allows one serial interface to control a matrix keypad, additional digital lines, and programmable outputs while reducing the number of host GPIO pins required. The device provides 19 configurable I/O channels and includes a 16-element FIFO for recording key events. Its keypad decoder can handle matrix-keypad scanning up to 8 columns by 8 rows, or 8 by 8 as stated in the manufacturer documentation, and supports key press and release interrupts. Programmable logic, reset generation, and a PWM generator extend its use beyond simple bidirectional GPIO expansion. The ADP5589 is intended for portable equipment such as phones, remote controls, and cameras, as well as healthcare, industrial, and instrumentation systems. The same 25-ball WLCSP package helps limit board area in space-constrained products. A key advantage over a collection of discrete I/O and keypad-controller devices is the consolidation of scanning, event buffering, programmable functions, and general-purpose I/O into one interface IC. Typical uses include matrix-keypad decoding, consumer remote controls, camera controls, medical-device panels, industrial instrumentation interfaces, and portable electronic products. The manufacturer identifies portable and non-portable applications as the principal markets for I/O expanders of this type. Designers should verify the complete electrical limits, serial-interface timing, logic levels, programming model, and ball assignments in the Analog Devices ADP5589 datasheet before layout. Because the device is supplied in a 1.99 mm by 1.99 mm WLCSP, careful escape routing, clean ground return paths, and assembly-process planning are important implementation considerations. This page combines the verified manufacturer feature set, distributor pricing, source links, design guidance, and application analysis to provide practical information beyond a basic distributor catalog entry. All available pricing information is stated as of 2026-10-29, and unverified electrical details are identified rather than estimated.
ADP5589ACBZ-02-R7 - 19-Channel GPIO/Keypad Expander | Analog Devices
The Analog Devices ADP5589ACBZ-02-R7 is a 19-channel GPIO (General Purpose Input/Output) port expander with an integrated keypad matrix decoder, dual programmable logic blocks, reset logic and a PWM generator, housed in a 25-ball WLCSP (1.99 mm x 1.99 mm) package and operated from a 1.65 V to 3.6 V supply. An I/O expander is a type of interface IC that extends the number of general-purpose pins a host microcontroller can drive or read. It sits between the host and the outside world on a two-wire I2C bus, translating a small serial command set into parallel digital control of keys, LEDs, relays, and discrete logic. In the ADP5589 this generic function is fused with a dedicated hardware keypad decoder, so a single serial bus line replaces an entire scanned key matrix and its driver firmware. Key features include 19 configurable I/Os usable as keypad decoding lines for a matrix up to 11 x 8, key press and key release interrupts, key pad lock/unlock, a 16-element FIFO for event recording, GPI with selectable interrupt level, selectable 100 kOhm or 300 kOhm pull-up resistors, 300 kOhm pull-down resistors, and GPO outputs configurable as push-pull or open drain. Two independent programmable logic blocks allow simple hardware-level conditional functions without firmware polling, and the PWM generator supports both internal PWM generation and external PWM triggering through an internal PWM AND function. Technically the device offloads repetitive, latency-sensitive work from the host MCU. Because the keypad scan and debounce logic runs in hardware, the host receives event interrupts through the 16-deep FIFO rather than continuously polling a matrix, which reduces code size, CPU wake-ups and battery drain in portable designs. The 1.65 V to 3.6 V supply range spans mobile and battery-powered rails as well as standard 3.3 V industrial and instrumentation nodes. Typical applications include QWERTY-size keypad decoding in remote controls and handsets, GPIO expansion in portable consumer electronics, keypad plus LED feedback panels in healthcare devices, and programmable logic or PWM-driven indicator control in compact industrial instrumentation. A key design consideration is that the ADP5589 is a fixed-function device with configuration registers set over I2C, so it complements rather than replaces a fully programmable MCU. Layout should keep the 25-ball WLCSP on a clean ground plane with short I2C traces and adequate ball-to-ball decoupling. This page synthesizes distributor pricing and availability, package-level drop-in alternatives, and practical layout and design notes that are not consolidated in the manufacturer datasheet.
ADP5589ACPZ-00-R7 - 19-Channel Keypad Decoder & I/O Expander | Analog Devices
The Analog Devices ADP5589ACPZ-00-R7 is a 19-channel GPIO port expander with an integrated keypad matrix decoder, programmable logic, reset logic, and PWM generator, housed in a 24-LFCSP-WQ package measuring 3.5 mm by 3.5 mm. The device supports QWERTY-size keyboard matrices, key press and release interrupts, keypad lock and unlock functions, configurable GPIO inputs and outputs, and internal or external PWM generation. A GPIO port expander increases the number of general-purpose input/output lines available to a host processor. The ADP5589 combines conventional I/O expansion with dedicated keypad-scanning resources, making it useful in portable devices, remote controls, cameras, healthcare equipment, industrial instrumentation, and other embedded systems. Its integrated programmable logic blocks can support event handling and programmable digital functions without requiring additional discrete logic. Key features include 19 configurable I/Os, a keypad matrix decoder for matrices up to 11 by 8, key press and release interrupts, selectable GPIO interrupt levels, 100 kΩ or 300 kΩ pull-up resistors, 300 kΩ pull-down resistors, push-pull or open-drain outputs, and a 16-element FIFO for event recording. The device also provides dual programmable logic blocks and PWM generation capabilities. The ADP5589 is intended for systems where a keypad matrix, auxiliary controls, indicator outputs, and event-driven logic must be connected to a processor with limited I/O pins. Its FIFO can record keypad events while the host processor is occupied with another task, reducing the risk of losing transient events. The integrated keypad decoder simplifies matrix scanning and event reporting while retaining programmable GPIO behavior. A typical implementation places the ADP5589 between a host serial interface and a matrix keypad or bank of auxiliary controls. Firmware configures the relevant pins as keypad rows, keypad columns, interrupt inputs, push-pull outputs, or open-drain outputs. The device reports key events through its interrupt mechanism, while the host reads event information over the serial interface. The exact electrical ratings and pin functions should be confirmed against the Analog Devices manufacturer datasheet before layout or firmware release. When designing a board around the ADP5589ACPZ-00-R7, preserve the manufacturer's recommended decoupling and signal-routing guidance, account for the exposed package pad and its thermal requirements, and define the host interface and interrupt polarity early. This page combines the verified manufacturer and distributor descriptions with application guidance, comparison data, and practical design notes to help engineers evaluate the device before implementation.
ADP5589ACPZ-01-R7 - 19-Channel GPIO Key Controller | Analog Devices
The Analog Devices ADP5589ACPZ-01-R7 is a 19-channel GPIO port expander with an integrated keypad matrix decoder, programmable logic, reset logic, and PWM generator, packaged in a 24-pin LFCSP-WQ (3.5 mm × 3.5 mm) surface-mount package. The device supports I2C-connected keypad and general-purpose I/O expansion, provides a 16-element FIFO for event recording, and is specified for operation up to 3.6 V according to distributor product data. An I/O expander is an interface IC that increases the number of general-purpose input/output pins available to a host processor. The ADP5589 belongs to the broader GPIO expander hierarchy and combines conventional port expansion with dedicated keypad-scanning functions. Its integrated keypad matrix decoder can handle QWERTY-size keyboards, while its programmable I/O channels can operate as inputs or outputs for control, status, and discrete interface signals. Key features include 19 configurable I/O channels, integrated keypad decoding, press and release interrupts, keypad lock and unlock functions, programmable logic, reset generation, and a PWM generator. The 16-element FIFO records GPIO or keypad events so the host processor can retrieve them through the serial interface. The -01 ordering code identifies a specific configuration within the ADP5589 family, while the -00 and -02 ordering codes represent other family variants whose detailed configuration differences require datasheet-level verification. The ADP5589 uses an I2C interface to connect a relatively low-pin-count microcontroller or application processor to additional keypad rows, columns, LEDs, control signals, or status inputs. Programmable logic can offload simple decision functions from the host processor, while the FIFO helps separate event production from event processing. This combination is especially useful when the host lacks sufficient direct GPIO pins or when a matrix keypad must share the same bus with other low-speed peripherals. Typical uses include QWERTY-size keypad interfaces in portable and medical equipment, camera and remote-control panels, industrial instrumentation, and compact human-machine interfaces. It is also applicable to GPIO-heavy control panels where key events, indicator outputs, and switch inputs must be managed over I2C. The small 3.5 mm × 3.5 mm package supports compact PCB layouts, although exposed-pad thermal management and careful high-speed trace routing remain important. Designers should verify the -01 variant’s register map and configuration limits against the current Analog Devices datasheet before treating another ordering code as a drop-in replacement. I2C pull-up placement, exposed-pad soldering, bus capacitance, and FIFO interrupt handling are the primary implementation considerations. The verified source data does not provide a complete pin list, operating-temperature range, current consumption, or exact logic thresholds.
ADP5589ACPZ-02-R7 - 19-Channel GPIO and Keypad Controller | Analog Devices
Analog Devices ADP5589ACPZ-02-R7 is a 19-channel GPIO port expander with a built-in keypad matrix decoder, programmable logic, reset logic, and PWM generator, supplied in a 24-LFCSP-WQ surface-mount package measuring 3.5 mm by 3.5 mm. It operates from a 1.65 V to 3.6 V supply and supports key matrices up to 11 × 8, while providing a 16-element FIFO for recording key events. A GPIO port expander is an interface IC that increases the number of general-purpose inputs and outputs available to a host processor. The ADP5589 combines that conventional expansion function with dedicated keypad decoding, programmable logic blocks, interrupt generation, and PWM generation. This integration reduces the need for separate matrix-scanning controllers and allows a host to monitor buttons, read switch states, drive LEDs, and generate pulse-width-modulated outputs through one device. The 19 configurable I/O channels support GPIO functions including key press and release interrupts, key lock and unlock functions, selectable interrupt levels, 100 kΩ or 300 kΩ pull-up options, and 300 kΩ pull-down resistors. General-purpose outputs can operate as push-pull or open-drain stages. Two programmable logic blocks add decision-making capability, and the integrated PWM generator supports internal PWM generation as well as external PWM configurations using internal logic signals. The ADP5589 is designed for systems where a primary microcontroller has too few pins for a keypad, indicator, or auxiliary control interface. Its FIFO can retain a sequence of key events for later processing, while interrupt signaling allows the host to react without continuously polling every input. The 24-LFCSP-WQ package supports compact portable equipment, instrumentation, healthcare, industrial, and remote-control designs. Typical uses include QWERTY and numeric keypads, portable medical controls, camera and remote-control interfaces, programmable industrial panels, and small embedded systems that need additional LEDs, switches, or logic-driven outputs. The device can reduce connector and host-pin requirements while centralizing scanning and event capture. Designers should confirm the exact -02 ordering option, pin mapping, exposed-pad connection, and electrical limits in the Analog Devices manufacturer datasheet before layout. Input levels, pull-up configurations, interrupt polarity, and keypad matrix dimensions must be checked against the host voltage and mechanical switch arrangement to avoid contention or unintended current draw. This product page consolidates manufacturer and distributor information, distinguishes documented ADP5589 order variants, and provides application guidance, comparison criteria, and sourcing context that are not presented as a single unified engineering summary in the underlying datasheet and distributor listings.
ADUM1201ARZ - Dual 2500Vrms 1Mbps Isolator | Analog Devices
The ADUM1201ARZ is a dual-channel digital isolator from Analog Devices, Inc., based on the proprietary iCoupler technology. It provides 2500Vrms isolation with a data rate of 1Mbps and a common-mode transient immunity (CMTI) of 25kV/µs. The device is housed in an 8-pin SOIC (0.154", 3.90mm width) package, making it suitable for space-constrained applications. It operates with a supply voltage range of 3.0V to 5.5V on both sides, allowing flexible interfacing with different 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 devices use monolithic transformers and high-speed CMOS to achieve isolation. This approach eliminates the uncertain current transfer ratios, nonlinear transfer functions, and temperature and lifetime effects associated with optocouplers. 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 ADUM1201ARZ include its dual-channel configuration with 1/1 channel directionality, meaning one channel transmits data in each direction. The device supports data rates up to 1Mbps, making it suitable for low-to-moderate speed communication interfaces like SPI, UART, and GPIO isolation. The 25kV/µs CMTI ensures reliable operation in noisy environments, preventing false triggering due to fast transients. The iCoupler technology also consumes significantly less power than optocouplers, with typical quiescent current in the microampere range. The ADUM1201ARZ features a patented refresh mechanism that ensures DC correctness in the absence of input logic transitions and during power-up/power-down conditions. This is critical for maintaining the integrity of static signals across the isolation barrier. The device is available in both standard and automotive-grade versions, with the ADUM1201W variants qualified for 125°C operation. The 8-pin SOIC package is widely used and easy to integrate into existing PCB designs. Typical applications include isolating SPI and UART interfaces in industrial control systems, providing isolation in medical monitoring equipment, and protecting sensitive electronics in communication infrastructure. The device is also used in power supply control and motor drive circuits where high-voltage transients are present. Its small footprint and low power consumption make it ideal for portable and battery-powered devices. When designing with the ADUM1201ARZ, it is important to ensure proper power supply decoupling on both sides of the isolation barrier. Place 0.1µF capacitors close to the VDD1 and VDD2 pins to minimize noise. Additionally, consider the maximum data rate and CMTI requirements of your application to ensure the device meets your performance needs.
ADUM1201ARZ-RL7 - Dual-Channel Digital Isolator 2500Vrms | Analog Devices
The Analog Devices ADUM1201ARZ-RL7 is a dual-channel digital isolator based on the proprietary iCoupler technology, providing 2500Vrms galvanic isolation with a 1Mbps data rate and 25kV/µs common-mode transient immunity (CMTI). It is housed in an 8-SOIC (0.154", 3.90mm width) package, operates over a 3.0V to 5.5V supply range on both sides, and is rated for -40°C to +125°C operation. A digital isolator is a component that transfers digital signals across a galvanic isolation barrier without allowing direct current flow. Unlike optocouplers, which use LEDs and photodiodes, iCoupler devices use monolithic transformers and high-speed CMOS to achieve higher data rates, lower power consumption, and more stable performance over temperature and lifetime. Digital isolators are essential in systems where ground potential differences, noise, or safety requirements demand isolation, such as in industrial automation, medical equipment, and data acquisition. Key features of the ADUM1201ARZ-RL7 include 1/1 channel directionality (one forward channel and one reverse channel), which is ideal for bidirectional communication. The device delivers 2500Vrms isolation voltage, 1Mbps data rate, and 25kV/µs CMTI, ensuring reliable operation in noisy environments. The wide supply range supports both 3.3V and 5V logic levels, and the typical quiescent current is only 1.3mA per channel, making it suitable for power-sensitive applications. Technically, the ADuM1201 combines high-speed CMOS and monolithic transformer isolation in an 8-lead SOIC package. This architecture eliminates the need for external drivers and discrete components, reducing board space and improving reliability. Unlike optocouplers, iCoupler technology does not suffer from current transfer ratio degradation, providing stable isolation performance throughout the product lifetime. Typical applications include industrial automation for isolating field buses and sensor interfaces, medical devices where patient safety requires galvanic isolation, and data acquisition systems to prevent ground loops and noise. It is also used in power supply control, motor drives, and communication interfaces. When designing with this device, place bypass capacitors close to the VDD1 and VDD2 pins and maintain proper PCB spacing across the isolation barrier to preserve creepage and clearance requirements. The high CMTI rating makes the part robust in fast-switching environments, but careful layout is still required to maximize isolation performance.
ADUM1201BRZ - 2-Ch Digital Isolator 10Mbps | Analog Devices
The ADUM1201BRZ is a dual-channel digital isolator from Analog Devices, based on the proprietary iCoupler technology. It provides 2500Vrms isolation with a data rate of 10Mbps and a common-mode transient immunity (CMTI) of 25kV/µs. The device is housed in an 8-pin SOIC (0.154", 3.90mm width) package, making it suitable for space-constrained applications. It operates over a supply voltage range of 2.7V to 5.5V on both sides, allowing flexible interfacing with different 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 devices use monolithic transformers and high-speed CMOS, eliminating concerns about current transfer ratio (CTR) degradation, nonlinear transfer functions, and temperature/lifetime effects. This results in more stable performance and lower power consumption—iCoupler devices consume about one-tenth the power of comparable optocouplers. Key features of the ADUM1201BRZ include a bidirectional channel configuration (1/1 directionality), a maximum data rate of 10Mbps, and a CMTI of 25kV/µs, which ensures reliable operation in noisy industrial environments. The device also offers a wide operating temperature range of -40°C to +105°C, making it suitable for harsh applications. The SOIC-8 package is industry-standard, enabling easy PCB layout and drop-in replacement in many designs. Technically, the ADUM1201BRZ uses a 2.7V to 5.5V supply range on both VDD1 and VDD2, with a maximum quiescent current of 2.6mA per channel. The propagation delay is typically 50ns, and the pulse width distortion is 3ns, ensuring accurate signal transmission. The device is certified to UL1577, IEC 60747-5-5, and CSA standards, providing robust isolation ratings. Typical applications include industrial fieldbus isolation, motor drives, battery monitoring, hybrid electric vehicles, and digital isolation in power supplies. The ADUM1201BRZ is particularly well-suited for isolating SPI, UART, and other serial interfaces where high-speed data transfer and reliable isolation are required. When designing with this device, ensure that the bypass capacitors (0.1µF) are placed close to the VDD pins to minimize noise. Also, consider the maximum data rate and CMTI requirements of your application to ensure the device meets your performance needs.
ADUM1201BRZ-RL7 - Dual-Channel Digital Isolator | Analog Devices
The ADUM1201BRZ-RL7 is a dual-channel digital isolator from Analog Devices, based on the proprietary iCoupler technology. It provides galvanic isolation up to 2500Vrms, with a data rate of 10Mbps and a common-mode transient immunity (CMTI) of 25kV/µs. The device is housed in an 8-pin SOIC (0.154", 3.90mm width) package, making it suitable for space-constrained applications. 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 systems where safety, noise immunity, or ground potential differences are concerns. The ADUM1201BRZ-RL7 uses monolithic transformer technology, which offers superior performance compared to traditional optocouplers, including higher data rates, lower power consumption, and better reliability. Key features of the ADUM1201BRZ-RL7 include its 1/1 channel directionality (one forward, one reverse), a wide supply voltage range of 3.0V to 5.5V, and a propagation delay of typically 50ns. The device also features a high CMTI of 25kV/µs, ensuring reliable operation in noisy industrial environments. Its low power consumption and small package make it ideal for battery-powered and portable applications. The ADUM1201BRZ-RL7 is designed using Analog Devices' iCoupler technology, which integrates micro-transformers and high-speed CMOS circuits on a single chip. This architecture eliminates the need for external components and provides a robust isolation solution. The device meets various safety standards, including DIN EN 60950, and is RoHS compliant. Typical applications include motor drives, battery monitors, hybrid electric vehicles, and digital fieldbus isolation. In motor drives, the isolator protects control circuits from high-voltage transients. In battery monitoring, it ensures safe communication between cells and the controller. The device's high CMTI and data rate make it suitable for industrial automation and communication interfaces. When designing with the ADUM1201BRZ-RL7, it is important to ensure proper PCB layout to maintain isolation performance. Keep the isolation barrier clear of copper traces and place decoupling capacitors close to the supply pins. Also, consider the propagation delay and timing requirements of your system to avoid data corruption.
ADUM121N0WBRZ-RL7 - 150Mbps Dual Digital Isolator, 3kV | Analog Devices
The Analog Devices ADUM121N0WBRZ-RL7 is a dual-channel digital isolator based on Analog Devices' iCoupler technology, providing 3000 Vrms isolation and 150 Mbps data rate in an 8-pin SOIC-N (NSOIC) wide-body package. It uses a 1/1 channel configuration (one forward, one reverse) and combines CMOS with monolithic air-core transformer technology to deliver superior performance versus optocouplers. The device operates from 1.7 V to 5.5 V on both sides and supports 100 kV/us common-mode transient immunity (CMTI). A digital isolator is a semiconductor device that transfers digital signals between two circuit domains while providing galvanic isolation - a safety barrier that blocks DC and low-frequency fault currents while allowing high-speed data to pass through transformer, capacitive, or optical coupling. iCoupler technology integrates a chip-scale air-core transformer on a CMOS die, replacing the LED/photodiode stack used in optocouplers. Compared with optocouplers, iCoupler parts like the ADuM121N offer 10x to 100x faster data rates, tighter pulse-width distortion, lower power, and no LED-degradation aging effects. Digital isolators sit in the signal-conditioning block between sensors/MCUs and the rest of the system. Key features of the ADuM121N0WBRZ-RL7 include 25 ns typical propagation delay, 2 ns typical pulse-width distortion, 4 mA per-channel supply current at 3.3 V, and 100 kV/us minimum CMTI. The wide-body SOIC package provides the 3 kVrms reinforced isolation needed for industrial and renewable-energy applications while exposing the part to standard 8-pin SMD assembly. The -RL7 suffix denotes a 7-inch tape-and-reel packaging for high-volume production. From an architectural standpoint, the ADuM121N uses a differential transformer coupling path with on-chip encoding that refreshes the input state on every clock cycle, eliminating the run-length limitations of competing edge-based architectures. The wide supply range (1.7 V to 5.5 V) allows direct connection to 1.8 V, 2.5 V, 3.3 V, or 5 V logic without level shifters, simplifying mixed-voltage isolation. The 150 Mbps data rate supports SPI, I2C (via bit-banging), RS-485, and high-speed GPIO up to about 10 MHz NRZ. Typical applications include isolated SPI interfaces for motor drives, isolated gate-drive signal paths in solar inverters, RS-485/RS-232 isolation in industrial PLCs, isolated ADC front-ends for medical and test equipment, and digital control links in EV battery management systems. Designers favor this part when 3 kVrms isolation, high CMTI, and 150 Mbps throughput must coexist in a wide-body SOIC footprint. When designing with the ADuM121N0WBRZ-RL7, place decoupling capacitors (typically 0.1 uF) on both VDD1 and VDD2 within 2 mm of the supply pins, and route the input/output traces on opposite sides of the isolation barrier to maintain creepage. Confirm that PCB layout preserves the 4 mm minimum clearance required by the 8-SOIC wide-body package for 3 kVrms reinforced isolation.
ADUM1250ARZ - Hot Swappable Dual I2C Isolator | Analog Devices
The ADUM1250ARZ is a hot-swappable, dual-channel digital isolator from Analog Devices, specifically designed for bidirectional I2C communication. It provides 2500Vrms isolation with a data rate of 1Mbps and a common-mode transient immunity (CMTI) of 25kV/µs. The device is housed in an 8-lead SOIC package (0.154", 3.90mm width) and operates from a 3.0V to 5.5V supply, making it suitable for a wide range of isolated I2C 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 ADUM1250ARZ uses Analog Devices' proprietary iCoupler chip-scale transformer technology, which offers advantages over traditional optocouplers, including higher data rates, lower power consumption, and better reliability. Key features of the ADUM1250ARZ include nonlatching, bidirectional communication channels that are compatible with I2C interfaces, eliminating the need to split I2C signals into separate transmit and receive lines. It supports hot-swap capability, allowing insertion or removal of boards without powering down the system. The device also features open-drain outputs with 30mA current sink capability, ensuring compatibility with standard I2C bus specifications. Technically, the ADUM1250ARZ provides two bidirectional channels, supporting a complete isolated I2C interface. It has a maximum data rate of 1Mbps, which is sufficient for standard and fast-mode I2C. The isolation barrier is rated at 2500Vrms, providing robust protection against voltage transients. The device operates over a temperature range of -40°C to +125°C, making it suitable for industrial environments. Typical applications include isolated I2C buses in industrial automation, medical equipment, power management systems, and communication interfaces. The ADUM1250ARZ is also used in hot-swap applications where boards need to be replaced without interrupting system operation. When designing with the ADUM1250ARZ, it is important to ensure proper decoupling of the power supply pins and to follow the recommended layout guidelines to maintain isolation performance. The device is RoHS compliant and available in tape and reel packaging.
ADUM1250ARZ-RL7 - I2C Digital Isolator 2500Vrms | Analog Devices
The ADUM1250ARZ-RL7 is a hot-swappable, dual-channel digital isolator from Analog Devices, specifically designed for I2C interfaces. It provides two bidirectional channels, enabling a complete isolated I2C interface without the need to split signals into separate transmit and receive paths. The device is housed in an 8-pin SOIC package (0.154", 3.90mm width) and offers 2500Vrms isolation, a data rate of 1Mbps, and a common-mode transient immunity (CMTI) of 25kV/µs. Digital isolators are components that transfer digital signals across an isolation barrier, providing galvanic isolation to protect circuits from high voltages, ground loops, and noise. They are essential in industrial, medical, and communication systems where safety and signal integrity are paramount. The ADUM1250ARZ-RL7 belongs to the family of I2C isolators, which are specialized for bidirectional communication protocols like I2C. Key features include non-latching, bidirectional communication channels compatible with I2C interfaces, hot-swap capability, and a wide operating temperature range. The device supports data rates up to 1Mbps, making it suitable for standard and fast-mode I2C. Its high CMTI of 25kV/µs ensures reliable operation in noisy environments, and the 2500Vrms isolation rating provides robust protection. Technically, the ADUM1250ARZ-RL7 uses Analog Devices' iCoupler technology, which employs chip-scale transformers instead of optocouplers, offering higher reliability, lower power consumption, and better performance. The device operates from a 3.0V to 5.5V supply on both sides, and its hot-swap feature allows insertion or removal without disrupting the bus. Typical applications include isolated I2C buses in industrial automation, medical equipment, and power management systems. It is also used in battery management, motor control, and any system requiring galvanic isolation for I2C communication. When designing with this device, ensure proper decoupling on both supply pins and maintain adequate creepage distances on the PCB to meet isolation requirements. The hot-swap feature should be considered in system design to avoid bus contention during power-up.
ADUM1251ARZ - I2C Digital Isolator 2500Vrms | Analog Devices
The ADUM1251ARZ is a hot-swappable, bidirectional I2C digital isolator from Analog Devices, offering 2500Vrms isolation and a data rate of 1Mbps. It comes in an 8-pin SOIC package and operates over a supply range of 3V to 5.5V. This device integrates two channels with non-latching communication, simplifying I2C isolation without splitting signals into separate transmit and receive paths. Digital isolators are components that provide galvanic isolation between two circuits while allowing digital signals to pass. They are essential in systems where ground potential differences or noise could disrupt communication, such as in industrial automation, medical equipment, and power management. The ADUM1251ARZ specifically supports I2C, a widely used two-wire bus, making it a key building block in mixed-voltage and isolated systems. Key features include a common-mode transient immunity (CMTI) of 25kV/µs, ensuring reliable operation in noisy environments. The device supports hot-swap capability, allowing insertion or removal without powering down the bus. Its bidirectional channels are I2C-compatible on Side 2 and I2C-compatible on Side 1, with modified thresholds for compatibility. The propagation delay is 162ns, and the device is available in both tube and tape-and-reel packaging. Technically, the ADUM1251ARZ uses Analog Devices' iCoupler technology, which employs chip-scale transformers instead of optocouplers, offering higher reliability and lower power consumption. The device is specified over the industrial temperature range of -40°C to +125°C, making it suitable for harsh environments. It is RoHS compliant and lead-free. Typical applications include isolating I2C buses in industrial control systems, medical monitoring equipment, and power supply management. The device is also used in battery management systems and automotive electronics where isolation is required for safety and noise immunity. When designing with the ADUM1251ARZ, ensure proper decoupling with 0.1µF capacitors on both supply pins and maintain adequate PCB layout to minimize parasitic capacitance. The hot-swap feature requires careful consideration of bus capacitance and pull-up resistor values to avoid glitches during insertion.
ADUM1251ARZ-RL7 - Hot-Swappable Dual I2C Isolator | Analog Devices
The ADUM1251ARZ-RL7 is a hot-swappable, dual-channel digital isolator from Analog Devices, specifically designed for bidirectional I2C communication. It provides 2500Vrms isolation with a data rate of 1Mbps and a common-mode transient immunity (CMTI) of 25kV/µs. The device operates from a 3.0V to 5.5V supply and is available in an 8-lead SOIC package, making it suitable for space-constrained designs. Digital isolators are components that transfer digital signals across an isolation barrier, typically using capacitive or magnetic coupling, to protect sensitive circuitry from high voltages, noise, and ground potential differences. They replace optocouplers in many applications due to their superior speed, reliability, and integration. The ADUM1251ARZ-RL7 belongs to the iCoupler family, which uses chip-scale transformer technology for isolation. Key features include bidirectional I2C communication without the need for direction control, open-drain interfaces, 30mA current sink capability, and support for hot-swap applications. The device is qualified for automotive applications and operates over a temperature range of -40°C to +125°C. It is RoHS compliant and available in tape and reel packaging. The ADUM1251ARZ-RL7 uses Analog Devices' iCoupler technology, which integrates micro-transformers and high-speed CMOS circuits to achieve reliable isolation. This architecture provides low propagation delay and high CMTI, ensuring robust performance in noisy industrial environments. The device also features non-latching, bidirectional channels, simplifying I2C bus isolation. Typical applications include I2C bus isolation in industrial automation, power management systems, and automotive electronics. It is also used in medical devices and instrumentation where galvanic isolation is required for safety. The device's hot-swap capability allows insertion and removal of boards without disrupting the bus. When designing with the ADUM1251ARZ-RL7, ensure proper decoupling with 0.1µF capacitors on both supply pins. The Side 1 interface is I2C compatible, while Side 2 is fully I2C compliant, so verify the logic levels of connected devices. For high-speed operation, follow the layout guidelines in AN-1109 to minimize emissions.
ADUM1300ARWZ - 3-Ch Digital Isolator 2500Vrms | Analog Devices
The ADUM1300ARWZ is a triple-channel digital isolator from Analog Devices, based on the proprietary iCoupler® technology. It provides 2500Vrms isolation with three unidirectional channels, supporting data rates up to 1Mbps and a common-mode transient immunity (CMTI) of 25kV/µs. The device is housed in a 16-lead SOIC-W (0.295" width) package, suitable for surface-mount assembly. Digital isolators are components that transmit digital signals across an isolation barrier, providing galvanic isolation to protect circuits and users from high voltages, ground loops, and noise. They replace optocouplers in many applications, offering higher speed, better reliability, and lower power consumption. The ADUM1300ARWZ is part of the iCoupler family, which uses monolithic transformer technology to achieve superior performance compared to traditional optocouplers. Key features include three independent isolation channels, a wide supply voltage range of 3.0V to 5.5V, and a maximum data rate of 1Mbps. The device offers 25kV/µs CMTI, ensuring reliable operation in noisy industrial environments. It also features low power consumption, with typical quiescent current of 1.3mA per channel, and operates over a temperature range of -40°C to +105°C. The ADUM1300ARWZ uses a magnetic coupling architecture, where data is transmitted across a thin isolation barrier using integrated transformers. This approach eliminates the need for LEDs and photodiodes, improving performance and reliability. The device includes a refresh mechanism to maintain output states even when the input is static, ensuring correct operation in all conditions. Typical applications include industrial fieldbus communication, motor control, power inverters, and isolated SPI/UART interfaces. The high CMTI and 2500Vrms isolation make it suitable for harsh environments where noise and voltage transients are common. 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 and follow the recommended layout guidelines in the datasheet to achieve optimal performance.
ADUM1300ARWZ-RL7 - 3-Ch 2500Vrms Digital Isolator | Analog Devices
The ADUM1300ARWZ-RL7 is a triple-channel digital isolator from Analog Devices, based on the proprietary iCoupler technology. It provides three independent isolation channels with a data rate of 1 Mbps and a withstand voltage of 2500 Vrms. 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 (wide body) package, suitable for surface-mount assembly. 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, medical, and communication systems where safety and signal integrity are critical. The ADUM1300 uses monolithic transformers and high-speed CMOS, offering superior performance compared to traditional optocouplers, such as higher data rates, lower power consumption, and better reliability. Key features include a common-mode transient immunity (CMTI) of 25 kV/µs, ensuring reliable operation in noisy environments. The device supports a wide operating temperature range of -40°C to +105°C, making it suitable for industrial applications. The iCoupler technology eliminates the need for LEDs and photodiodes, simplifying design and improving long-term stability. The ADUM1300ARWZ-RL7 is designed for general-purpose isolation in applications such as industrial fieldbus communication, isolated SPI/UART interfaces, and motor control. Its 1 Mbps data rate is adequate for many control and monitoring signals, while the 2500 Vrms isolation rating provides robust protection. The wide supply range allows interfacing between different voltage domains, such as 3.3 V and 5 V systems. When designing with this isolator, 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 on both sides. The device is RoHS compliant and lead-free, meeting environmental standards. Typical applications include isolated data acquisition, power inverter gate drive isolation, and medical equipment where patient safety requires galvanic isolation. The ADUM1300ARWZ-RL7 is a reliable choice for engineers seeking a compact, high-performance digital isolator.
ADUM1301ARW-RL - Triple-Channel Digital Isolator, 1Mbps, 16-SOIC | Analog Devices
The Analog Devices ADUM1301ARW-RL is a triple-channel digital isolator based on the proprietary iCoupler architecture, providing 2500 Vrms isolation across three independent data channels in a 16-pin SOIC wide-body (RW) package. The grade A speed grade supports data rates up to 1 Mbps with a typical propagation delay of 100 ns and operates from a 2.7 V to 5.5 V supply on either side of the isolation barrier, enabling voltage translation functionality across the barrier. A digital isolator is a semiconductor device that transfers logic-level signals between two electrically separated circuits, replacing legacy optocouplers. Isolator functions are essential isolation domains in any system that requires safety isolation between low-voltage control logic and hazardous high-voltage domains, while still allowing high-speed data exchange. The isolator category belongs to the broader signal-conditioning and isolation IC family, sitting within the interface IC hierarchy. Key features include 25 kV/µs common-mode transient immunity (CMTI), low power operation (1.2 mA per channel at 0-2 Mbps, 5 V supply), 32 mA per channel maximum at 90 Mbps operation, automotive qualification per the datasheet, and a wide-body 16-SOIC package with 7.5 mm body width to support reinforced insulation creepage. The device is qualified for automotive applications and offers default low outputs. The ADUM1301ARW-RL uses monolithic air-core transformer technology combined with high-speed CMOS, avoiding the LEDs and photodiodes used in optocouplers. This eliminates the design difficulties associated with optocouplers (current-transfer-ratio degradation, slow switching, and LED aging) while providing superior common-mode transient immunity and stable timing across temperature. Typical applications include isolated gate logic in motor drives and industrial inverters, isolated data acquisition in PLC systems and process control, isolated SPI / RS-232 / RS-485 interfaces, isolated logic level translation between microcontrollers and power stages, and isolated control signals in medical and energy systems that require reinforced insulation per IEC 60747-17. Design consideration: the wide-body SOIC-16 (0.295" body width) provides the required creepage distance for reinforced insulation at 2500 Vrms. Ensure that no copper traces or vias run beneath the package body between the two isolation domains, and place decoupling capacitors (0.1 µF ceramic) as close as possible to each VDD pin. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the standalone ADuM1300/ADuM1301 datasheet.
ADUM1301ARWZ - 3-Ch Digital Isolator 2500Vrms | Analog Devices
The Analog Devices ADUM1301ARWZ is a triple-channel digital isolator rated at 2500Vrms with a 1 Mbps data rate and 25 kV/µs common-mode transient immunity (CMTI), housed in a 16-pin SOIC-W (0.295 inch / 7.50 mm width) wide-body package. Built on Analog Devices' proprietary iCoupler technology, the device integrates high-speed CMOS with monolithic air-core transformers to transmit digital signals across an isolation barrier without optocouplers, eliminating LED aging and photodiode degradation concerns that plague legacy optoisolators. A digital isolator is a semiconductor device that transfers digital logic states across a galvanic isolation barrier using magnetic, capacitive, or optical coupling rather than a direct electrical connection. Digital isolators sit hierarchically as a sub-category of isolators within the signal conditioning family, which itself belongs to interface ICs and ultimately power management and protection ICs in semiconductor taxonomy. They protect low-voltage microcontrollers and sensitive logic from hazardous high voltages, ground potential differences, and fast transient events on industrial buses, motor drives, and medical equipment. Compared to optocouplers, iCoupler-based parts deliver tighter timing skew, higher CMTI, lower power, and 10x longer operational life. Key features include a 2.7 V to 5.5 V supply range on both sides of the barrier enabling voltage translation, 100 ns maximum propagation delay (tpLH/tpHL), 40 ns pulse-width distortion, and 2.5 ns typical rise/fall time. The wide-body SOIC-16 package provides the creepage and clearance required to achieve the 2500Vrms working voltage rating per UL and VDE reinforced-insulation standards. The ADUM1301ARWZ uses three independent transformer channels, each integrating a CMOS encoder/decoder pair, an RF oscillator, and a miniature transformer coil fabricated on-chip. Differential encoding and refresh-on-demand data transmission reject common-mode noise and ensure deterministic propagation delay across temperature. Typical applications include isolated SPI/UART interfaces for industrial PLCs, isolated gate-drive signaling for IGBT/MOSFET half-bridges, isolated ADC front-ends in motor control, and medical device patient-isolation barriers. The 1 Mbps rating covers most asynchronous serial links and slow synchronous buses. When designing with this device, place 0.1 µF decoupling capacitors on both VDDA/VDDB supply pins within 5 mm of the package, and route the two ground planes on opposite sides of the barrier maintaining at least 7.5 mm creepage per the wide-body SOIC land pattern. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.