ADUM140D0BRZ - Quad 150Mbps Digital Isolator 3kV | Analog Devices
N.º de pieza: ADUM140D0BRZ ✓ Activo| Cant. | Precio unitario | Total |
|---|---|---|
| 1 | $3.95 | $3,95 |
| 10 | $3.55 | $35,50 |
| 100 | $2.99 | $299,00 |
| 500 | $2.49 | $1.245,00 |
| 1.000 | $2.15 | $2.150,00 |
ADUM140D0BRZ Descripción general
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.
Alternativas directas para ADUM140D0BRZ — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
Variantes de esta serie
Modelos de la misma serie compatibles directamente con ADUM140D0BRZ (mismo factor de forma y huella) — difiere en Common-Mode Transient Immunity (CMTI), Propagation Delay (typical), Technology.
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ADUM140D1BRZ
✅ Sustitución directa✓ En stock
$2.99 / unidad
Ver hoja de datos →ADUM140D0BRZ Especificaciones
| Isolation Rating (rms) | 3000 Vrms (3.0 kVrms) |
| Number of Channels | 4 |
| Channel Directionality | 4:0 (4 forward, 0 reverse) |
| Maximum Data Rate | 150 Mbps |
| Common-Mode Transient Immunity (CMTI) | 75 kV/µs minimum |
| Propagation Delay (typical) | 13 ns |
| Supply Voltage Range (VDD1 / VDD2) | 1.7 V to 5.5 V |
| Rango de temperatura de funcionamiento | -40 °C to +125 °C |
| Encapsulado | 16-SOIC (0.154", 3.90 mm width) |
| Tipo de montaje | Surface Mount |
| Nivel MSL | 3 (168 hours) |
| RoHS / REACH | RoHS3 Compliant, REACH Unaffected |
| Technology | iCoupler (CMOS + monolithic air-core transformer) |
| Fail-Safe Option | Pin 2 = DISABLE1, Pin 10 = NIC (D0 variant) |
| Safety Standard | UL 1577 / IEC 60747-17 (per datasheet) |
Configuración de pines de ADUM140D0BRZ
| Pin 1 | VDD1 — Supply voltage for Side 1 (1.7 V to 5.5 V) |
| Pin 2 | DISABLE1 — Side 1 disable input (D0 fail-safe variant) |
| Pin 3 | VIA — Side 1 input, channel A |
| Pin 4 | VIB — Side 1 input, channel B |
| Pin 5 | VIC — Side 1 input, channel C |
| Pin 6 | VID — Side 1 input, channel D |
| Pin 7 | GND1 — Ground reference for Side 1 |
| Pin 8 | GND2 — Ground reference for Side 2 (isolated from GND1) |
| Pin 9 | VDD2 — Supply voltage for Side 2 (1.7 V to 5.5 V) |
| Pin 10 | NIC — Side 2 default-output behavior control (D0 fail-safe variant) |
| Pin 11 | VOD — Side 2 output, channel D |
| Pin 12 | VOC — Side 2 output, channel C |
| Pin 13 | VOB — Side 2 output, channel B |
| Pin 14 | VOA — Side 2 output, channel A |
| Pin 15 | GND2 — Ground reference for Side 2 |
| Pin 16 | NC — Not connected (per datasheet) |
Aplicaciones típicas
ADUM140D0BRZ es adecuado para 6 aplicacións: Industrial Fieldbus Isolation (PROFIBUS / Modbus / CAN), Solar Inverter and Battery Management Isolation, Motor Drive and Servo Control Isolation, Medical Device Patient Isolation, USB and High-Speed Serial Interface Isolation, PLC and Industrial I/O Module Isolation.
Industrial Fieldbus Isolation (PROFIBUS / Modbus / CAN)
The ADUM140D0BRZ is engineered for industrial fieldbus isolation where RS-485, CAN, or Modbus transceivers must communicate across a 3 kV safety barrier. Its 75 kV/µs CMTI prevents output glitches when high-side switching transients couple through stray capacitance, and the 150 Mbps data rate comfortably exceeds CAN (1 Mbps) and RS-485 (10-50 Mbps) signaling speeds. In a typical design, the ADUM140D0BRZ sits between the MCU UART/SPI lines and a transceiver IC such as the ADM3072EARZ (also available on XAIPART), providing galvanic isolation between the low-voltage logic domain and the field-wiring domain. Designers should pair each supply pin with a 0.1 µF X7R ceramic bypass capacitor placed within 2 mm of the IC pins to suppress high-frequency noise.
Recomendado
Solar Inverter and Battery Management Isolation
Photovoltaic inverters and battery management systems (BMS) require robust isolation between high-voltage DC bus telemetry and low-voltage control circuitry. The ADUM140D0BRZ's 3 kVrms isolation rating and 150 Mbps data rate enable SPI-based communication between a battery monitor IC and the host MCU while blocking dangerous fault transients. The 1.7 V to 5.5 V supply range supports direct connection to both 3.3 V MCU rails and 5 V gate-driver or monitor IC rails without level shifters. In a typical BMS reference design, four ADuM140D channels carry SPI clock, data, chip-select, and an interrupt signal between the AFE and the controller, providing a 3 kV safety barrier that survives hot-plug events. The -40 °C to +125 °C operating range covers outdoor and under-hood automotive environments.
Recomendado
Motor Drive and Servo Control Isolation
Servo drives and variable-frequency drives (VFDs) inject high dV/dt transients (often >50 kV/µs) into the motor-side ground reference due to IGBT or SiC MOSFET switching. The ADUM140D0BRZ's 75 kV/µs minimum CMTI ensures the isolated output remains stable through these transients, preventing false PWM commands that could damage the drive. Its 150 Mbps bandwidth easily handles the 50-100 kHz PWM feedback loops and encoder quadrature signals crossing the isolation barrier. In a typical servo design, three channels carry PWM phases and one carries an encoder index or fault signal from the gate driver to the MCU. The wide-body SOIC package variant (ADUM140D0BRWZ) is often preferred in motor-drive applications to maximize PCB creepage distance.
Recomendado
Medical Device Patient Isolation
Medical electronics such as patient monitors, infusion pumps, and diagnostic equipment require reinforced isolation between patient-connected circuits and the mains-powered host. The ADUM140D0BRZ provides 3 kVrms isolation per UL 1577, satisfying IEC 60601-1 isolation barrier requirements when used with appropriate creepage and clearance PCB layout. The 150 Mbps data rate supports high-resolution ADC data transfer from patient-side sensors to the display-side processor. The low propagation delay (~13 ns typical) ensures timing-critical signals such as defibrillator synchronization pulses remain coherent across the barrier. Pair the ADUM140D0BRZ with a low-leakage isolated DC-DC converter on the patient side to maintain <10 µA patient leakage current.
Recomendado
USB and High-Speed Serial Interface Isolation
Industrial USB hosts, USB-to-UART bridges, and isolated serial ports benefit from the ADUM140D0BRZ's 150 Mbps bandwidth, which covers full-speed (12 Mbps) and high-speed (480 Mbps with two channels in parallel) USB signaling in some configurations. While native USB isolation usually requires a dedicated isolator like Analog Devices' ADuM3160 or ADuM4160, the ADUM140D0BRZ is ideal for isolating high-speed UART, SPI, or I2S audio buses between USB-to-Serial bridge ICs and downstream processors. Its 1.7 V to 5.5 V supply flexibility enables direct connection to 1.8 V, 3.3 V, and 5 V mixed-voltage subsystems without external level translation. Designers should ensure USB signal integrity is maintained by keeping PCB traces matched in length across the isolation gap.
Recomendado
PLC and Industrial I/O Module Isolation
Programmable Logic Controllers (PLCs) and modular industrial I/O systems require per-channel isolation between field wiring (24 V digital inputs/outputs, analog sensor signals) and the backplane logic. The ADUM140D0BRZ provides four independent isolation channels in a single 16-SOIC, replacing four discrete optocouplers and saving PCB area while improving channel-to-channel timing matching. The integrated DC correctness guarantees valid output logic levels even after long periods without input transitions - a critical feature for slowly-updating PLC inputs. The wide operating temperature range (-40 °C to +125 °C) supports deployment in factory-floor cabinets with elevated ambient temperatures. Designers should use the wide-body SOIC variant (ADUM140D0BRWZ) where maximum creepage is required for 24 V industrial signal isolation.
Recomendado
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Comparación con alternativas
| Parámetro | Este producto | ADUM140D0BRWZ | ADUM140D1BRZ | ADUM140D0CRWZ-RL | ADUM1402CRWZ-RL |
|---|---|---|---|---|---|
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Package | 16-SOIC (0.154", narrow body) | 16-SOIC (0.295", wide body) | 16-SOIC (0.154", narrow body) | 16-SOIC (0.295", wide body) | 16-SOIC (0.295", wide body) |
| Channel Directionality | 4:0 (4 forward, 0 reverse) | 4:0 | 4:0 | 4:0 | 2:2 |
| Fail-Safe Variant | D0 (Pin 2=DISABLE1, Pin 10=NIC) | D0 | D1 (Pin 2=NIC, Pin 10=DISABLE2) | D0 | D0 |
| Isolation Voltage | 3000 Vrms | 3000 Vrms | 3000 Vrms | 3000 Vrms | 3000 Vrms |
| Maximum Data Rate | 150 Mbps | 150 Mbps | 150 Mbps | 150 Mbps | 150 Mbps |
| CMTI (minimum) | 75 kV/µs | 75 kV/µs | 75 kV/µs | 75 kV/µs | 75 kV/µs |
| Supply Voltage Range | 1.7 V to 5.5 V | 1.7 V to 5.5 V | 1.7 V to 5.5 V | 1.7 V to 5.5 V | 1.7 V to 5.5 V |
| Operating Temperature | -40 °C to +125 °C | -40 °C to +125 °C | -40 °C to +125 °C | -40 °C to +125 °C | -40 °C to +125 °C |
Diferenciadores clave
- iCoupler technology with 75 kV/µs CMTI vs legacy optocouplers (frente a Generic optocouplers (e.g., 6N137))
- Integrated fail-safe with DC correctness (frente a ADUM1400 (no integrated fail-safe option))
- Wide 1.7 V to 5.5 V supply range (frente a ADUM1400 (3.0 V to 5.5 V only))
Notas de diseño
Each ADUM140D0BRZ supply pin (VDD1 at pin 1, VDD2 at pin 9) requires a 0.1 µF X7R ceramic bypass capacitor placed within 2 mm of the IC pin. Both VDD1 and VDD2 must be present and stable before the device can transmit data; the iCoupler transformer design does not require a specific power-up sequence, but the device asserts a fail-safe output state (per the D0/D1 variant definition) until both supplies are valid. For noisy industrial environments, add a 10 µF tantalum or polymer bulk capacitor near each supply pin to suppress low-frequency voltage ripple from upstream switching converters.
Maintain minimum 4 mm PCB creepage distance between Side 1 and Side 2 copper traces to support the rated 3 kVrms isolation voltage per UL 1577. The narrow-body 16-SOIC package (0.154 in body width) provides limited internal creepage; designers targeting reinforced isolation for IEC 60747-17 should select the wide-body 16-SOIC variant (ADUM140D0BRWZ) or add PCB slotting beneath the package to extend the isolation barrier. Avoid placing any traces or copper pours directly under the package body to maximize the isolation gap between primary and secondary side grounds.
Do not assume the ADUM140D0BRZ can be substituted for older ADuM1400/ADuM1401/ADuM1402 parts without verifying fail-safe behavior. The D0 variant (Pin 2 = DISABLE1, Pin 10 = NIC) is incompatible with systems designed for the D1 variant. Per the ADuM140D datasheet, output behavior during input power-down differs between D0 and D1; selecting the wrong variant can cause unintended output states at MCU startup. Also verify channel directionality: this 4:0 part is not interchangeable with the 2:2 ADuM1402 or 3:1 ADuM1401 without re-routing signals. Confirm the supply voltage range supports both 1.8 V and 3.3 V mixed-rail designs before committing to the layout.
Información de cumplimiento
RoHS3 compliant and REACH unaffected per PartGenie listing. MSL 3 (168 hours) per JEDEC J-STD-020. Not AEC-Q100 qualified - for automotive designs use ADuM140x automotive-grade variants. Safety certifications per UL 1577 and IEC 60747-17 documented in datasheet.
