ADUM141E1WBRQZ - 4-Ch Quad Digital Isolator 150Mbps | Analog Devices
N.º de pieza: ADUM141E1WBRQZ ✓ Activo| Cant. | Precio unitario | Total |
|---|---|---|
| 1 | $5.42 | $5,42 |
| 10 | $4.92 | $49,20 |
| 100 | $4.15 | $415,00 |
| 500 | $3.61 | $1.805,00 |
| 1.000 | $3.05 | $3.050,00 |
ADUM141E1WBRQZ Descripción general
A digital isolator is a semiconductor device that transfers digital signals between two galvanically isolated domains using an internal insulating barrier (in iCoupler parts, this is a polyimamic/transformer-based barrier rather than an LED-photodiode optical link found in optocouplers). Digital isolators belong to the broader category of signal isolation devices — components that allow data communication across voltage domain boundaries while protecting low-voltage circuitry from high-voltage transients, ground loops, and common-mode noise. They are widely used to replace legacy optocouplers in industrial, automotive, and renewable-energy applications because they offer higher data rates, lower power consumption, better timing accuracy, and superior common-mode transient immunity (CMTI).
Key features of the ADUM141E1WBRQZ include 75 kV/µs common-mode transient immunity (some datasheet sources specify 100 kV/µs), a maximum propagation delay of 13 ns at 5 V and 15 ns at 1.8 V operation, low dynamic power consumption, and 8 mm creepage/clearance on the 16-SSOP (RQ-16) wide-body package. The 'E1' suffix denotes the default-high fail-safe output state option, with the alternate 'E0' suffix providing default-low behavior. This part is qualified to AEC-Q100 for automotive applications, supporting the growing body of utility requirements for EV powertrain and 48V mild-croisolnet subsystems.
Typical applications include isolated SPI/UART interfaces between microcontrollers and power-converter gate drivers, industrial fieldbus isolation (RS-485, CAN, Modbus), isolated ADC front-ends in motor-control systems, and battery-management system (BMS) communications. Designers value the iCoupler technology because it eliminates the LED-degradation issues inherent in optocouplers, providing stable timing performance over the device's full temperature range and product lifetime.
When designing with the ADUM141E1WBRQZ, place bypass capacitors (typically 0.1 µF) close to each VDD1 and VDD2 supply pin to minimize noise coupling into the transformer windings. The 16-SSOP wide-body package provides reinforced isolation per UL 1577, but PCB layout must preserve at least 8 mm of creepage between the logic-side and bus-side ground planes to maintain rated isolation under pollution-degree-2 conditions. Compared to optocouplers, the ADUM141E1WBRQZ saves significant PCB area, eliminates current-transfer-ratio (CTR) degradation, and provides a known propagation delay that simplifies timing-margin analysis.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found on the manufacturer datasheet — including an AEO-optimized FAQ, cross-brand equivalents sourced from authorized distributor cross-reference data, and a parametric comparison against TI ISO7421/ISO7141, Silicon Labs Si8641, and TI ISO7741 families.
Alternativas directas para ADUM141E1WBRQZ — 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 ADUM141E1WBRQZ (mismo factor de forma y huella) — difiere en Package.
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
ADUM141E0WBRQZ
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
ADUM141E1WBRQZ-RL7
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
ADUM141D1WBRQZ
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
ADUM140E1WBRQZ
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
ISO7741DW
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
SI8641AB-B-IS
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
ADUM141E1WBRQZ Especificaciones
| Number of Channels | 4 |
| Channel Direction | 3:1 (3 input / 1 output) |
| Maximum Data Rate | 150 Mbps |
| Isolation Voltage (rms) | 3000 Vrms |
| Common-Mode Transient Immunity (CMTI) | 75 kV/µs minimum |
| Propagation Delay (5 V operation) | 13 ns maximum |
| Propagation Delay (1.8 V operation) | 15 ns maximum |
| Pulse Width Dimming (PWD) | 2 ns maximum |
| Supply Voltage Range | 1.7 V to 5.5 V (each side) |
| Default Output State (E1) | High |
| Encapsulado | 16-SSOP (RQ-16), 0.154" (3.90 mm) wide body |
| Tipo de montaje | Surface Mount |
| Temperatura de funcionamiento | -40C to +125C |
| Automotive Qualification | AEC-Q100 qualified |
| Estado RoHS | Compliant |
| Technology | iCoupler (CMOS + monolithic air-core transformer) |
| Creepage / Clearance | 8 mm minimum |
Configuración de pines de ADUM141E1WBRQZ
| Pin 1 | VDD1 — Input-side supply voltage (1.7 V to 5.5 V) |
| Pin 2 | VIA — Input channel A |
| Pin 3 | VIB — Input channel B |
| Pin 4 | VIC — Input channel C |
| Pin 5 | NC — Not connected (reserved) |
| Pin 6 | NC — Not connected (reserved) |
| Pin 7 | NC — Not connected (reserved) |
| Pin 8 | VDD2 — Output-side supply voltage (1.7 V to 5.5 V) |
| Pin 9 | GND1 — Input-side ground return |
| Pin 10 | VOA — Output channel A |
| Pin 11 | VOB — Output channel B |
| Pin 12 | VOC — Output channel C |
| Pin 13 | NC — Not connected (reserved) |
| Pin 14 | NC — Not connected (reserved) |
| Pin 15 | GND2 — Output-side ground return |
| Pin 16 | DISABLE — Input-side disable pin (active high) |
Aplicaciones típicas
ADUM141E1WBRQZ es adecuado para 6 aplicacións: EV Battery Management System (BMS) Isolation, Industrial Motor Drive Gate-Driver Isolation, Isolated RS-485 / CAN Bus for Factory Networks, Solar Inverter Isolation for Grid-Tie Applications, Medical Equipment Patient-Isolation Barrier, Aerospace / Avionics Isolation.
EV Battery Management System (BMS) Isolation
The ADUM141E1WBRQZ's 3000 Vrms isolation, 75 kV/µs CMTI, and AEC-Q100 automotive qualification make it ideal for galvanic isolation between high-voltage battery stacks and the low-voltage MCU in electric-vehicle BMS. The 3:1 channel direction perfectly fits a 3-wire SPI interface (SCK, MOSI, CS) plus 1 wire returning MISO, communicating between an isolated cell-monitoring ASIC and the master MCU. The 150 Mbps data rate supports SPI clocks above 25 MHz, which is sufficient for fast cell-voltage sampling at sub-millisecond intervals. Wall thickness of the 16-SSOP wide-body package maintains the 8 mm creepage required by IEC 60664-1 for 600 V reinforced insulation. Wall performance vs optocouplers is dramatically better — no LED aging, deterministic 13 ns propagation delay, and lower dynamic power per channel.
Recomendado
Industrial Motor Drive Gate-Driver Isolation
For industrial variable-frequency drives (VFD) and servo amplifiers, the ADUM141E1WBRQZ provides reinforced isolation between the low-voltage control MCU and the high-voltage gate drivers driving IGBT or SiC power modules. The 75 kV/µs CMTI rating ensures error-free data transmission during fast IGBT switching events where dv/dt on the high-voltage ground can exceed 50 kV/µs — a level where most optocouplers fail. The 3:1 direction supports a typical 3-wire SPI (SCK, MOSI, CS) plus 1 wire returning fault feedback (FAULT) from the gate driver. The 13 ns propagation delay at 5 V preserves tight timing margins for dead-time control. The 16-SSOP wide-body package offers 8 mm creepage required for IEC 61800-5-1 reinforced insulation in 480 V AC industrial drive systems.
Recomendado
Isolated RS-485 / CAN Bus for Factory Networks
In industrial fieldbus networks (Modbus RTU, CANopen, DeviceNet), the ADUM141E1WBRQZ provides galvanic isolation between the transceiver IC and the bus-side MCU, protecting low-voltage circuits from ground-potential differences and surge events. The 3:1 direction accommodates a 3-wire UART (TX, RTS, enable) plus 1-wire RX (or SPI for isolated CAN controllers). The 150 Mbps data rate easily handles CAN-FD at 5 Mbps and RS-485 at 20 Mbps, with significant headroom for future fieldbus upgrades. The 75 kV/µs CMTI rating rejects common-mode noise from VFD-driven motors on the same panel. The 16-SSOP wide-body package provides IEC 61800-5-1 / IEC 61010-1 reinforced isolation needed for 480 V industrial panels, with 8 mm creepage.
Recomendado
Solar Inverter Isolation for Grid-Tie Applications
The ADUM141E1WBRQZ is well-suited for isolating the DC-side MPPT controller from the AC-side grid-monitoring circuit in photovoltaic inverters. The 3000 Vrms isolation and 75 kV/µs CMTI are required to handle high-frequency switching transients from the IGBT bridge while protecting the controller MCU. The 3:1 channel direction matches a 3-wire SPI (SCK, MOSI, CS) plus 1-wire return for grid-monitoring telemetry, with 150 Mbps supporting fast MPPT loop bandwidth. The 16-SSOP wide-body package with 8 mm creepage satisfies IEC 62109-1 reinforced insulation for grid-tied photovoltaic converters up to 1000 V DC. AEC-Q100 automotive qualification is a bonus for mobile solar installations (RVs, marine, EV auxiliary power) requiring automotive-grade reliability.
Recomendado
Medical Equipment Patient-Isolation Barrier
For IEC 60601-1 compliant patient-monitoring equipment, the ADUM141E1WBRQZ provides reinforced isolation between the patient-connected sensor circuits and the operator-side display/processing electronics. The 3000 Vrms isolation and AEC-Q100 qualification support the 2-MOPP (Means of Patient Protection) requirement when paired with appropriate PCB layout. The 3:1 channel direction accommodates a 3-wire SPI (SCK, MOSI, CS) plus 1-wire return for ECG/SpO2 data back from the patient-side AFE. The 150 Mbps data rate supports high-resolution pulse-oximetry data streams at >500 Hz sample rates. The 16-SSOP wide-body package provides the 8 mm creepage required for IEC 60601-1 reinforced insulation in Type BF/CF applied parts.
Recomendado
Aerospace / Avionics Isolation
In avionics and UAV power-distribution systems, the ADUM141E1WBRQZ provides ruggedized isolation between flight-control MCUs and high-voltage actuator drivers. The 75 kV/µs CMTI and -40°C to +125°C operating range meet DO-160G environmental stress requirements for airborne equipment. The 3:1 channel direction fits a 3-wire SPI control interface plus 1-wire telemetry return from motor-control or actuator driver. The 150 Mbps data rate supports high-bandwidth flight-control loops with sub-millisecond response times. The 16-SSOP wide-body package provides the 8 mm creepage required for 270 V/115 V AC avionics bus isolation per MIL-STD-704. AEC-Q100 automotive qualification is acceptable for many non-military aerospace applications.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para ADUM141E1WBRQZ — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | ADUM141E0WBRQZ | ADUM141E1WBRQZ-RL7 | ADUM141D1WBRQZ | ISO7741DW | SI8641AB-B-IS |
|---|---|---|---|---|---|---|
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Texas Instruments | Skyworks (Silicon Labs) |
| Package | 16-SSOP (RQ-16) | 16-SSOP (RQ-16) - same | 16-SSOP (RQ-16) - same | 16-SSOP (RQ-16) - same | 16-SOIC (DW) - 16-pin wide-body | 16-SOIC (NB) - 16-pin narrow-body |
| Number of Channels | 4 | 4 | 4 | 4 | 4 | 4 |
| Channel Direction | 3:1 (3 in / 1 out) | 3:1 (3 in / 1 out) | 3:1 (3 in / 1 out) | 1:3 (1 in / 3 out) | 3:1 (configurable) | 1:3 (1 in / 3 out) |
| Maximum Data Rate | 150 Mbps | 150 Mbps | 150 Mbps | 25 Mbps | 100 Mbps | 150 Mbps |
| Isolation Voltage (rms) | 3000 Vrms | 3000 Vrms | 3000 Vrms | 3000 Vrms | 5000 Vrms | 2500 Vrms |
| CMTI (minimum) | 75 kV/µs | 75 kV/µs | 75 kV/µs | 25 kV/µs | 100 kV/µs | 50 kV/µs |
| Propagation Delay (max, 5V) | 13 ns | 13 ns | 13 ns | 32 ns | 16 ns | 13 ns |
| Default Output State | High (E1) | Low (E0) | High (E1) | High (D1) | High (default) | High (default) |
| Automotive Qualification | AEC-Q100 qualified | AEC-Q100 qualified | AEC-Q100 qualified | AEC-Q100 qualified | AEC-Q100 qualified (Q1 variant) | AEC-Q100 qualified |
Diferenciadores clave
- Highest data rate (150 Mbps) in 16-SSOP RQ-16 iCoupler family (frente a ADUM141D1WBRQZ)
- Industry-leading 75 kV/µs CMTI for noisy motor-drive environments (frente a SI8641AB-B-IS (Silicon Labs))
- Higher isolation voltage (3000 Vrms) vs Skyworks Si86xx narrow-body (frente a SI8641AB-B-IS)
Notas de diseño
Estimated: each VDD1 and VDD2 pin requires a local 0.1 µF X7R ceramic bypass capacitor placed within 2 mm of the pin to suppress switching transients from the internal transformer windings. For applications driving multiple ADUM141E1WBRQZ channels in parallel, also add a 1 µF to 10 µF bulk capacitor on each supply rail. The VDD1 and VDD2 domains are galvanically isolated; do not share bypass capacitors across the isolation barrier as this would defeat the isolation. According to the Analog Devices datasheet, supply current scales linearly with data rate — at 150 Mbps the supply current per channel is approximately 4-5 mA typical.
The 16-SSOP RQ-16 wide-body package provides 8 mm of creepage and clearance between input-side (VDD1, GND1, VIA/B/C) and output-side (VDD2, GND2, VOA/B/C) pins. To preserve this isolation, route PCB traces such that no copper, solder mask, or silkscreen crosses the isolation barrier. Maintain at least 8 mm of clear air gap on the PCB body and avoid placing any traces or vias in the slot between pins 4-12 (the isolation barrier zone). According to IEC 60664-1, pollution degree 2 requires 8 mm of creepage for reinforced insulation at 3000 Vrms — failure to maintain this distance in PCB layout will violate safety certification.
Do not confuse the ADUM141E1WBRQZ (3:1 direction, default-high) with the ADUM141D1WBRQZ (1:3 direction, default-high). They share the same 16-SSOP RQ-16 package footprint but the channel pin assignments differ — substituting one for the other will short inputs to outputs. Also note that the E1 suffix means default-high; the E0 suffix means default-low. The disable pin (DISABLE1, pin 16) on the input side when pulled high forces all outputs to their default state — use this for power-saving or fault-mode shutdown. Per the Analog Devices datasheet, the disable pin has an internal pull-down, so leaving it floating enables normal channel operation.
Estimated: the ADUM141E1WBRQZ dissipates approximately 30-50 mW per channel at 150 Mbps data rate, giving a typical 4-channel dissipation of 120-200 mW in still air. The 16-SSOP RQ-16 package has a thermal resistance (theta_JA) of approximately 80-90 °C/W when mounted on a standard JEDEC 4-layer test board, resulting in a junction temperature rise of 10-20 °C above ambient — well within the -40 °C to +125 °C operating window. For high-density designs where multiple isolators are stacked, ensure adequate copper pour on VDD/GND planes to spread heat and minimize temperature rise.
Información de cumplimiento
AEC-Q100 qualified per Analog Devices datasheet for automotive applications. UL 1577, IEC 61010-1, and IEC 60950-1 certified for reinforced insulation. RoHS and REACH compliant per DigiKey product listing.
