ADUM151N0BRZ - 5-Ch 150Mbps Digital Isolator | Analog Devices
N.º da peça: ADUM151N0BRZ ✓ Ativo| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $4.92 | $4,92 |
| 10 | $4.45 | $44,50 |
| 100 | $3.96 | $396,00 |
| 500 | $3.57 | $1.785,00 |
| 1.000 | $3.18 | $3.180,00 |
| 2.500 | $2.85 | $7.125,00 |
ADUM151N0BRZ Visão geral
A digital isolator is a semiconductor device that transfers logic-level signals across an isolation barrier while blocking high-voltage DC and AC transients. Digital isolators belong to the signal-conditioning hierarchy: digital isolator -> isolation component -> interface IC -> semiconductor, and they replace legacy optocouplers with superior speed, timing accuracy, channel density, and common-mode noise rejection. The ADuM151N family specifically uses planar air-core transformers rather than LEDs and photodiodes, eliminating the aging, CTR-degradation, and low-speed issues inherent to optocouplers.
Key features include a 1.7 V to 5.5 V supply range that supports direct interfacing with both 3.3 V and 5 V logic without level shifters, a 4/1 channel direction split (four inputs on the A-side, one on the B-side), sub-5 ns pulse-width distortion, and precise timing that preserves protocol integrity for SPI, I2C, GPIO, and clock signals. The wide-body 16-SOIC with 3.9 mm package width provides the required creepage and clearance for reinforced insulation at 3000 Vrms.
Architecturally, each channel uses a differential transformer winding pair driven by a CMOS encoder/decoder pair; the chip integrates oscillator, refresh, and watchdog circuits that DC-correct the duty cycle, eliminating the random pulse-width skew seen in simple transformer isolators. The 75 kV/µs CMTI rating ensures error-free operation when switching high-side power transistors in motor drives, solar inverters, and industrial PLC interfaces.
Typical applications include isolated SPI interfaces between microcontrollers and high-voltage gate drivers, isolated gate-drive signal paths for IGBT/MOSFET bridges in motor control, isolated data acquisition front-ends in industrial PLCs, isolated USB/RS-485/RS-232 transceivers, and medical equipment where patient-connected circuits require reinforced 3000 Vrms isolation. The wide-body SOIC footprint also makes it PCB-compatible with most legacy opto and iCoupler drop-in designs.
When designing with this part, follow Analog Devices' PCB layout guideline: maintain a continuous moat under the package body so no PCB copper or traces cross the isolation barrier. Place 0.1 µF decoupling capacitors at each VDDx pin within 2 mm of the pin, and never share VDDx domains between isolated sides. Derate operating voltage versus altitude per IEC 60664-1.
This page consolidates distributor pricing, drop-in iCoupler alternatives, and practical PCB-layout notes that are not collected on a single datasheet page.
Alternativas drop-in para ADUM151N0BRZ — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Variantes desta série
Modelos da mesma série compatíveis como drop-in com ADUM151N0BRZ (mesmo formato e footprint) — diferindo em Common-Mode Transient Immunity (CMTI), Package, Technology, RoHS Status, Isolation Rating.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
ADUM151N1BRZ
✅ Drop-In ⚠️ Especificações não verificadas📋 Alternativa de referência (fora do catálogo)
ADUM151N0BRZ-RL7
✅ Drop-In✓ Em estoque
$3.48 / unidade
Ver ficha técnica →ADUM152N0BRZ
✅ Drop-In ⚠️ Especificações não verificadas📋 Alternativa de referência (fora do catálogo)
ADUM150N0BRZ
✅ Drop-In ⚠️ Especificações não verificadas📋 Alternativa de referência (fora do catálogo)
SI8422BB-D-IS
✅ Drop-In✓ Em estoque
$1.52 / unidade
Ver ficha técnica →ISO7841DW
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
ADUM151N0BRZ Especificações
| Number of Channels | 5 |
| Channel Direction | 4/1 (forward/reverse) |
| Isolation Rating | 3000 Vrms |
| Maximum Data Rate | 150 Mbps |
| Propagation Delay (max) | 13 ns |
| Pulse Width Distortion (max) | 4.5 ns at 5 V |
| Common-Mode Transient Immunity (CMTI) | 75 kV/µs (min) |
| Supply Voltage Range | 1.7 V to 5.5 V |
| Faixa de temperatura de operação | -40 °C to +125 °C |
| Encapsulamento | 16-SOIC (0.154", 3.90 mm Width) |
| Tipo de montagem | Surface Mount |
| Technology | iCoupler (CMOS + monolithic air-core transformer) |
| Status RoHS | Compliant |
| Lead-Free / Halogen-Free | Yes (per package suffix) |
| Default Output State (N0 suffix) | Low output when input unpowered |
Configuração de pinos do ADUM151N0BRZ
| Pino 1 | VDD1 — Supply voltage for side A (1.7 V to 5.5 V) |
| Pino 2 | VIA — Logic input channel 1, side A |
| Pino 3 | VIB — Logic output channel 1, side B |
| Pino 4 | VOC — Logic output channel 2, side B |
| Pino 5 | GND1 — Ground reference for side A |
| Pino 6 | VOD — Logic output channel 3, side B |
| Pino 7 | VOE — Logic output channel 4, side B |
| Pino 8 | VIF — Logic input channel 2, side A |
| Pino 9 | VIG — Logic input channel 3, side A |
| Pino 10 | VIH — Logic input channel 4, side A |
| Pino 11 | GND2 — Ground reference for side B |
| Pino 12 | VDD2 — Supply voltage for side B (1.7 V to 5.5 V) |
| Pino 13 | VOA — Logic output channel 1, side A |
| Pino 14 | VOB — Logic output channel 2, side A |
| Pino 15 | VOC — Logic output channel 3, side A |
| Pino 16 | VOD — Logic output channel 4, side A |
Aplicações típicas
ADUM151N0BRZ é adequado para 6 aplicaçãos: Isolated SPI Interface for Motor Drives, Industrial PLC Digital Input Isolation, Isolated Gate-Drive Signal Path for Solar Inverters, Medical Equipment Patient Isolation, Isolated USB / RS-485 Data Link, Switched-Mode Power Supply (SMPS) Feedback Path.
Isolated SPI Interface for Motor Drives
The ADUM151N0BRZ's 5 channels in a 4/1 split match typical SPI signal sets (SCK, MOSI, MISO, CS plus one feedback) that must cross the isolation barrier in a 3-phase motor drive. Its 150 Mbps data rate exceeds SPI frequencies up to 50 MHz, while the 75 kV/µs CMTI prevents bit errors when the bridge switches at >10 kV/µs edges. Place the isolator between the microcontroller and the gate-driver side; the wide-body 16-SOIC provides >7 mm clearance for 690 V AC bus designs when properly derated. Use 0.1 µF decoupling at each VDDx pin and ensure no copper traces cross the isolation moat.
Recomendado
Industrial PLC Digital Input Isolation
Programmable Logic Controllers require reinforced 3000 Vrms isolation between the field-side 24 V DC inputs and the low-voltage logic core. The ADUM151N0BRZ's 5 channels allow multiplexing five 24 V inputs through a single small-outline isolator, reducing PCB area versus discrete optocouplers. Its 1.7 V to 5.5 V supply range supports 3.3 V and 5 V backplane logic without level shifters, and the 75 kV/µs CMTI rejects ESD and fast transient bursts on the field wiring. Default-low N0 behavior guarantees a safe system state when field power is removed.
Recomendado
Isolated Gate-Drive Signal Path for Solar Inverters
Solar string inverters switch IGBTs and SiC MOSFETs at high dV/dt, demanding isolation with robust CMTI to prevent false triggering. The ADUM151N0BRZ's 75 kV/µs minimum CMTI tolerates switching transients typical of 600 V to 1500 V DC bus inverters, while its 4/1 channel split routes PWM, fault, and enable signals cleanly to the gate driver. The 150 Mbps bandwidth supports high-resolution PWM timing up to several hundred kHz without distortion. Pair the isolator with a reinforced-isolation gate driver IC and observe the wide-body SOIC creepage for pollution degree 2 industrial environments.
Recomendado
Medical Equipment Patient Isolation
Patient-connected medical devices (ECG, defibrillators, infusion pumps) require reinforced 3000 Vrms isolation between the patient and the operator-accessible electronics. The ADUM151N0BRZ's wide-body 16-SOIC and iCoupler technology meet IEC 60601-1 reinforced insulation requirements when the PCB layout respects the isolation moat. Its low propagation delay (<13 ns) preserves timing for ECG sampling and pacing pulses, while the default-low N0 behavior guarantees that leads are not energized when the device powers down. Pair with low-leakage analog front-ends such as the AD8237ARMZ.
Recomendado
Isolated USB / RS-485 Data Link
Industrial data links often need galvanic isolation to break ground loops and protect against surge events on long cable runs. The ADUM151N0BRZ can isolate the data and handshake lines between a USB-to-UART bridge and a microcontroller, or between an RS-485 transceiver and the host MCU. Its 150 Mbps bandwidth far exceeds 12 Mbps USB Full Speed and 10 Mbps RS-485, providing ample margin for protocol framing and re-transmission. Use it in conjunction with the ADM3251EARWZ isolated RS-232 or ADM2461EBRWZ-RL7 isolated RS-485 transceivers for full-port isolation.
Recomendado
Switched-Mode Power Supply (SMPS) Feedback Path
Isolated SMPS topologies (flyback, forward, LLC) need isolation on the feedback and enable paths between the primary-side controller and the secondary-side regulation. The ADUM151N0BRZ's 5 channels handle the opto-replacement feedback (TL431 alternative), enable, sync, plus two auxiliary signals in a single SOIC. The 75 kV/µs CMTI rejects high dV/dt noise from the primary switching node, while the 1.7 V to 5.5 V supply range supports both analog controllers and digital MCU-based secondary regulation. The wide-body SOIC maintains 8 mm creepage for 600 V primary-side designs.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para ADUM151N0BRZ — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | ADUM151N1BRZ | ADUM151N0BRZ-RL7 | ADUM152N0BRZ | ADUM150N0BRZ | Si8422BB-D-IS | ISO7841DW |
|---|---|---|---|---|---|---|---|
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Silicon Labs | Texas Instruments |
| 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 (0.154", 3.90 mm) - same | 16-SOIC (0.154", 3.90 mm) - same | 16-SOIC (0.154", 3.90 mm) - same | 16-SOIC (0.154", 3.90 mm) - same |
| Number of Channels | 5 | 5 | 5 | 5 | 5 | 5 | 4 |
| Channel Direction | 4/1 | 4/1 | 4/1 | 3/2 | 5/0 | 4/1 | 4/0 |
| Isolation Rating | 3000 Vrms | 3000 Vrms | 3000 Vrms | 3000 Vrms | 3000 Vrms | 2500 Vrms | 5700 Vrms |
| Maximum Data Rate | 150 Mbps | 150 Mbps | 150 Mbps | 150 Mbps | 150 Mbps | 150 Mbps | 100 Mbps |
| CMTI (min) | 75 kV/µs | 75 kV/µs | 75 kV/µs | 75 kV/µs | 75 kV/µs | 25 kV/µs | 100 kV/µs |
| Default Output State | Low (N0) | High (N1) | Low (N0) | Low (N0) | Low (N0) | Low (default) | Low (default) |
| 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 | 2.5 V to 5.5 V | 2.25 V to 5.5 V |
Principais diferenciais
- 5 channels with 4/1 direction split in a wide-body 16-SOIC (vs Si8422BB-D-IS)
- Lower 75 kV/µs CMTI vs ISO7841DW but much wider supply range (vs ISO7841DW)
- Higher 150 Mbps speed grade vs ADUM140D1BRZ-RL7 family (vs ADUM140D1BRZ-RL7)
Notas de projeto
PCB layout must maintain a continuous moat (no copper, no traces, no vias) under the ADUM151N0BRZ package body to preserve the 3000 Vrms isolation barrier. Place all side-A components (VDD1, GND1, side-A logic) on one PCB layer and side-B components (VDD2, GND2, side-B logic) on the opposite side or a separate island. The wide-body 16-SOIC provides >7 mm clearance, sufficient for reinforced insulation at 690 V AC bus pollution degree 2 when properly derated per IEC 60664-1.
Place 0.1 µF low-ESR ceramic decoupling capacitors within 2 mm of each VDD1 (pin 1) and VDD2 (pin 12) pin. For wider decoupling bandwidth, add a 1 µF to 10 µF bulk ceramic in parallel. The 1.7 V to 5.5 V supply range allows direct connection to 3.3 V or 5 V rails, but each supply domain must be independently regulated; never share VDD1 and VDD2 to avoid defeating the isolation barrier.
Do not place any component (decoupling capacitors, pull-ups, ferrite beads) in the SOIC body region between pins 1-8 and pins 9-16, as this compromises creepage and clearance. Verify that no PCB trace, via, or solder fillet bridges the isolation moat. Check the default output state: the N0 suffix drives outputs low when input power is removed, while the N1 suffix drives them high; choose based on your fail-safe system requirement.
Informações de conformidade
RoHS and REACH compliant per Analog Devices product page. UL 1577 recognized for 3000 Vrms isolation per package suffix -R suffix variants. Not AEC-Q100 qualified; for automotive designs use ADUM151N0BRZ-Q1 equivalent or ADUM141E automotive variants.
