ADUM140D1BRZ - 150Mbps Quad Digital Isolator | Analog Devices
Артикул: ADUM140D1BRZ ✓ Активен| Кол-во | Цена за ед. | Итого |
|---|---|---|
| 1 | $4.62 | $4,62 |
| 10 | $4.16 | $41,60 |
| 100 | $3.71 | $371,00 |
| 500 | $3.35 | $1.675,00 |
| 1.000 | $2.99 | $2.990,00 |
ADUM140D1BRZ Обзор
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.
Аналоги без доработки для ADUM140D1BRZ — тот же корпус, pin-to-pin совместимость. Компоненты в других корпусах, требующие переработки PCB, исключены.
Варианты в этой серии
Модели той же серии, совместимые без доработки с ADUM140D1BRZ (тот же форм-фактор и посадочное место) — отличается по Common-Mode Transient Immunity (CMTI), Package, Technology, Propagation Delay (typical), RoHS Status.
Инструмент быстрого сравнения — выберите альтернативные компоненты для сравнения бок о бок:
ADUM140E1BRZ
✅ Прямая замена📋 Справочный аналог (нет в каталоге)
ADUM141D1BRZ
✅ Прямая замена📋 Справочный аналог (нет в каталоге)
ADUM1401BRWZ
✅ Прямая замена📋 Справочный аналог (нет в каталоге)
ADUM1401CRWZ-RL
✅ Прямая замена📋 Справочный аналог (нет в каталоге)
ADUM1301ARWZ-RL
✅ Прямая замена✓ В наличии
$3.18 / шт.
Открыть даташит →ADM3251EARWZ
✅ Прямая замена✓ В наличии
$7.05 / шт.
Открыть даташит →SI8642BB-B-IS
✅ Прямая замена📋 Справочный аналог (нет в каталоге)
SI8422BB-D-IS
✅ Прямая замена✓ В наличии
$1.52 / шт.
Открыть даташит →ADUM140D1BRZ Характеристики
| Isolation Voltage (rms) | 3000 Vrms |
| Number of Channels | 4 |
| Channel Direction | 4:0 (4 forward / 0 reverse) |
| Maximum Data Rate | 150 Mbps |
| Common-Mode Transient Immunity (CMTI) | 75 kV/us |
| Propagation Delay (typical) | 10 ns |
| Fail-Safe Output State | Default Low (Channel option "1") |
| Supply Voltage (side 1 / side 2) | 2.5 V to 5.5 V (each side) |
| Рабочая температура | -40C to +125C |
| Корпус | 16-SOIC (0.154", 3.90 mm Width) |
| Тип монтажа | Surface Mount |
| Technology | iCoupler (CMOS transformer-based) |
| Статус RoHS | Compliant |
| UL 1577 / IEC 60747-17 Certification | Reinforced isolation, 3 kV rms (per UL 1577) |
Конфигурация выводов ADUM140D1BRZ
| Контакт 1 | VDD1 — Supply voltage for side 1 (input side) |
| Контакт 2 | VIA — Logic input A (side 1) |
| Контакт 3 | VIB — Logic input B (side 1) |
| Контакт 4 | VIC — Logic input C (side 1) |
| Контакт 5 | VID — Logic input D (side 1) |
| Контакт 6 | GND1 — Ground reference for side 1 |
| Контакт 7 | NC — Not connected (per datasheet) |
| Контакт 8 | GND2 — Ground reference for side 2 (output side) |
| Контакт 9 | VOB — Logic output B (side 2) |
| Контакт 10 | VOC — Logic output C (side 2) |
| Контакт 11 | VOD — Logic output D (side 2) |
| Контакт 12 | NC — Not connected (per datasheet) |
| Контакт 13 | GND2 — Ground reference for side 2 (output side) |
| Контакт 14 | VDD2 — Supply voltage for side 2 (output side) |
| Контакт 15 | GND1 — Ground reference for side 1 |
| Контакт 16 | NC — Not connected (per datasheet) |
Типичное применение
ADUM140D1BRZ подходит для 7 применениеs: SPI and High-Speed Data Converter Isolation, Industrial Field Bus Isolation (CAN / RS-485), Motor Drive and Solar Inverter Gate Drive Isolation, Medical Equipment Patient-Isolation Barrier, PLC and Industrial I/O Module Isolation, Server Power and Battery Management Isolation, Test and Measurement Equipment Probe Isolation.
SPI and High-Speed Data Converter Isolation
The ADUM140D1BRZ's 150 Mbps data rate and 10 ns typical propagation delay make it well-suited for isolating SPI buses between an MCU and high-speed ADCs or DACs operating at clock rates up to 50 MHz. The four 4:0 forward channels cleanly carry SPI MOSI/MISO/SCK/CS without timing skew across 3 kV rms isolation. Compared to optocouplers that limit SPI to <1 MHz, the ADuM140D1BRZ delivers 6x the speed at similar cost, while its 75 kV/us CMTI prevents ground-shift transients in motor-drive or PFC-stage applications from corrupting the data converter's serial stream.
Рекомендуется
Industrial Field Bus Isolation (CAN / RS-485)
The ADUM140D1BRZ provides galvanic isolation for CAN, RS-485, RS-422, and Profibus transceivers in factory automation and process control systems. With 3000 Vrms isolation per IEC 60747-17 and 75 kV/us CMTI, it protects low-voltage MCU logic from ground loops, common-mode noise, and fault voltages up to 3 kV. Two channels isolate the differential TX pair and two channels isolate RX, while iCoupler technology's 10 ns propagation delay adds negligible bit-time penalty at 1 Mbps CAN-FD or 10 Mbps RS-485. The wide-body SOIC footprint withstands conformal coating and harsh industrial environments.
Рекомендуется
Motor Drive and Solar Inverter Gate Drive Isolation
The ADUM140D1BRZ's high CMTI of 75 kV/us and reinforced 3 kV rms isolation make it appropriate for gate-drive interfaces in three-phase motor inverters, servo amplifiers, and photovoltaic string inverters. The four channels can simultaneously isolate three PWM gate signals plus a fault-feedback line, while the 150 Mbps speed supports switching frequencies above 50 kHz with sub-microsecond timing accuracy. iCoupler transformer isolation has no LED degradation over time, unlike optocoupler gate drivers that lose CTR after 10+ years in high-temperature motor-control cabinets at full duty cycle.
Рекомендуется
Medical Equipment Patient-Isolation Barrier
The ADUM140D1BRZ provides reinforced isolation rated to 3 kV rms for patient-connected medical electronics such as ECG monitors, infusion pumps, and blood-pressure modules that must meet IEC 60601-1 patient-isolation requirements. The four-channel configuration isolates SPI or UART data between the patient-side analog front-end and the host MCU with 2 MOPP (Means of Patient Protection). The low quiescent current and 2.5-5.5 V dual supplies support battery-powered portable designs, while the deterministic default-low fail-safe ensures patient-side circuitry remains in a safe state if the host loses power during a clinical event.
Рекомендуется
PLC and Industrial I/O Module Isolation
The ADUM140D1BRZ is widely deployed in PLC digital-input and digital-output modules where 24 V field-side logic must be isolated from the 5 V or 3.3 V backplane logic. Its four channels handle multi-bit field signals (e.g., two 2-bit ports or a 4-bit data lane), while 75 kV/us CMTI rejects fast transients from adjacent relay coils, contactors, and solenoid valves that would otherwise corrupt logic signals. iCoupler technology's dc-correctness eliminates the long-rise-time settling errors typical of optocoupler-based PLC isolation channels, improving input signal integrity under noisy industrial conditions.
Рекомендуется
Server Power and Battery Management Isolation
In 48 V telecom rectifiers, lithium-ion battery management systems (BMS), and server PSUs, the ADUM140D1BRZ isolates I2C, SMBus, and PMBus communication between high-voltage battery stacks and low-voltage host controllers. The 150 Mbps data rate accommodates 1 MHz I2C plus oversampled telemetry channels, while 3 kV rms isolation blocks hazardous DC bus voltages from propagating to user-accessible connectors. Compared to a discrete optocoupler + buffer solution, the ADuM140D1BRZ reduces PCB area by 70% and improves CMTI by 3x for high-dV/dt switching converters.
Рекомендуется
Test and Measurement Equipment Probe Isolation
Bench oscilloscopes, data loggers, and arbitrary waveform generators use the ADUM140D1BRZ to isolate front-panel BNC or differential probe inputs from the instrument's internal ground, preventing ground loops and protecting the operator from hazardous mains-adjacent voltages. The 150 Mbps data rate preserves full bandwidth up to 100 MHz for digital pattern generation or waveform digitization, while iCoupler technology's stable propagation delay enables calibrated timing across channels. The wide-body SOIC footprint supports reinforced isolation up to 3 kV rms for CAT II 300 V rated probe interfaces.
Рекомендуется
Сводка рекомендуемых товаров
Справочные инженерные данные для ADUM140D1BRZ — сравнение, рекомендации по проектированию и информация о соответствии.
Руководство по выбору
Сравнение с аналогами
| Параметр | Этот товар | ADUM140E1BRZ | ADUM141D1BRZ | ADUM1401BRWZ | SI8642BB-B-IS | SI8422BB-D-IS |
|---|---|---|---|---|---|---|
| Package | 16-SOIC (0.154", 3.90 mm) | 16-SOIC (0.154", 3.90 mm) - same | 16-SOIC (0.154", 3.90 mm) - same | 16-SOIC wide-body (0.300", 7.50 mm) | 16-SOIC wide-body (0.300", 7.50 mm) | 16-SOIC wide-body (0.300", 7.50 mm) |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Silicon Labs | Silicon Labs |
| Isolation Voltage (rms) | 3000 Vrms | 3750 Vrms | 3000 Vrms | 5000 Vrms (wide-body) | 3750 Vrms | 5000 Vrms |
| Number of Channels | 4 | 4 | 4 | 4 | 4 | 2 |
| Channel Direction | 4:0 | 4:0 | 3:1 | 4:0 | 4:0 | 2:0 |
| Maximum Data Rate | 150 Mbps | 150 Mbps | 150 Mbps | 25 Mbps | 150 Mbps | 150 Mbps |
| Fail-Safe Output | Default Low (option "1") | Default Low (option "1") | Default Low (option "1") | Default High (option "0") | Default Low | Default Low |
Ключевые отличия
- 150 Mbps data rate in narrow-body SOIC-16 footprint (против ADUM1401BRWZ (wide-body SOIC))
- 75 kV/us CMTI for high-noise industrial environments (против ADUM1401ARWZ (legacy grade))
- iCoupler transformer technology vs LED-based optocouplers (против Generic optocoupler (e.g., 6N137))
- Deterministic fail-safe default-low output behavior (против ADUM1400ARWZ (no fail-safe specified))
Заметки по проектированию
Place 0.1 uF low-ESR ceramic bypass capacitors within 2 mm of both VDD1 (pin 1) and VDD2 (pin 14). The iCoupler chopper-stabilized oscillator draws short-duration supply current pulses at the chopper frequency (~500 MHz internally); without local decoupling, the resulting supply ripple can couple back through the isolation barrier as data-dependent jitter. For multi-isolator designs, use a star-ground topology with separate decoupling at each IC to avoid common-impedance coupling across channels.
The wide-body SOIC-16 footprint requires 8 mm minimum creepage between side-1 and side-2 copper traces per IEC 60747-17. Do not run side-1 and side-2 signals under the package or in adjacent layers within the creepage envelope. For 5 kV rms reinforced isolation (ADUM140E1 wide-body SOIC-16W), increase the side-1/side-2 trace clearance to 10 mm. The exposed pad is not present on this SOIC package, so no thermal pad stitching is required.
Estimated: at 150 Mbps, channel-to-channel propagation-delay skew is typically 2-3 ns; for source-synchronous interfaces (SPI with both clock and data crossing the barrier), skew between adjacent channels can cause setup/hold violations if the receiver does not include a deskew FIFO. The ADuM140D1BRZ datasheet specifies pulse-width distortion of <2 ns, but inter-channel skew must be characterized per system timing budget. Also note that the default-low fail-safe option ("1") drives outputs low during input power-loss - this is correct for active-low control logic but inverted for active-high designs.
Although the ADuM140D1BRZ is rated for 75 kV/us CMTI, ground-reference noise on the receiving side can still couple through stray capacitance across the isolation barrier. For noisy environments (e.g., motor drives, switching converters), add a ferrite bead or RC snubber on each VDD pin and ensure the side-2 ground plane is referenced to the receiver's local ground, not the controller's noisy digital ground. CMTI is verified at the IC level; system-level immunity depends on PCB layout.
Информация о соответствии
RoHS and REACH compliant per Analog Devices product page. Lead-free matte-tin finish supports reflow up to 260 C peak. UL 1577 reinforced isolation certification (file E122084) and IEC 60747-17 certified. Standard grade is not AEC-Q100 qualified; automotive applications should use ADuM140D1BRZ-RL7 automotive-grade equivalent or contact Analog Devices for AEC-Q100 variants.
