ADUM141E1BRZ-RL7 - 4-Ch 150Mbps Digital Isolator | Analog Devices
部品番号: ADUM141E1BRZ-RL7 ✓ 生産中| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $3.85 | $3.85 |
| 10 | $3.42 | $34.20 |
| 100 | $2.75 | $275.00 |
| 500 | $2.4 | $1,200.00 |
| 1,000 | $2.1 | $2,100.00 |
ADUM141E1BRZ-RL7 概要
A digital isolator is an integrated circuit that transfers data across an isolation barrier (typically several kilovolts) using semiconductor-based techniques rather than optical coupling. In the broader component hierarchy, digital isolators belong to the signal-isolation family, sitting between optocouplers (older LED/photodiode technology) and modern magnetic or capacitive isolators. They are critical safety and signal-integrity components in any system where low-voltage logic must communicate with high-voltage or noise-isolated domains, such as industrial fieldbus, motor drives, and medical patient-connected electronics.
Key features include 3.0 kVrms / 3.75 kVrms reinforced isolation per UL 1577, 150 Mbps guaranteed data rate, 75 kV/us CMTI minimum, 4.5 ns typical pulse-width distortion, 2 ns channel-to-chip jitter, and 1.7 V to 5.5 V supply on both primary and secondary chip electronics. The SOIC-16W form is 7.5 mm wide, which is the package family optioned to HI-installation thickness for the soldering process. ADUM141E is a higher-performance-grade option of iCoupler technology recommended over older ADUM1410/1411/1412/1414 families when designers need higher CMTI and tighter jitter.
Typical applications include isolated SPI/UART between an MCU and a high-side gate driver in motor drives, isolated digital feedback in a solar inverter, isolated RS-485 bus nodes, and isolated data acquisition in a medical patient monitor. The wide input voltage (3.0V to 5.5V on both sides) covers standard logic rails, and the high CMTI permits routing through fast-switching power stages without false triggering. The ADUM141E series was specifically designed to directly replace the ADUM1410/1411/1412/1414 in most designs.
When designing with this part, ensure the VDD1 and VDD2 supplies are properly bypassed with 0.1 uF capacitors placed within 2 mm of the supply pins. Note that the input pins on either chip side have internal weak pull-down; if your driving source is open-drain, an external pull-up of 10 kohm to the corresponding VDD is required. The R suffix in the part number indicates tape and reel packaging for high-volume assembly.
This page synthesizes distributor pricing, verified drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone, giving the design engineer a single reference for selecting and qualifying ADUM141E1BRZ-RL7 in safety-critical isolation paths.
ドロップイン代替品: ADUM141E1BRZ-RL7 — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。
このシリーズのバリエーション
同一シリーズでドロップイン互換のモデル: ADUM141E1BRZ-RL7 （同一形状・フットプリント） — 相違点: Common-Mode Transient Immunity (CMTI), Data Rate, Isolation Voltage, Operating Temperature Range, Package.
クイック比較ツール — 並列比較する代替部品を選択:
ADUM141E1BRZ
✅ ドロップイン📋 参考代替品（カタログ未掲載）
ADUM141E0BRWZ
✅ ドロップイン📋 参考代替品（カタログ未掲載）
ADUM141E1BRWZ
✅ ドロップイン📋 参考代替品（カタログ未掲載）
ADUM141D1BRWZ
✅ ドロップイン✓ 在庫あり
$2.88 / 個
データシートを見る →Si8442BB-D-IS
✅ ドロップイン📋 参考代替品（カタログ未掲載）
ISO7842DWWR
✅ ドロップイン📋 参考代替品（カタログ未掲載）
ADUM141E1BRZ-RL7 仕様
| Isolation Voltage | 3000 Vrms (3.75 kV) per UL 1577 |
| Number of Channels | 4 |
| Channel Direction | 3 forward / 1 reverse (3:1) |
| データレート | 150 Mbps maximum |
| Common-Mode Transient Immunity (CMTI) | 75 kV/us minimum |
| Supply Voltage Range | 1.7 V to 5.5 V (both sides) |
| Pulse Width Distortion | 2 ns typical |
| 動作温度範囲 | -40 C to +125 C |
| パッケージ | 16-pin SOIC-N (RW-16) wide-body, 7.50 mm |
| 実装タイプ | Surface Mount |
| Technology | iCoupler (monolithic air-core transformer + CMOS) |
| RoHS ステータス | Compliant |
| Lead-Free | Yes |
| Input Default State | Internal weak pull-down (per side) |
| Reinforced Isolation | Yes (per UL 1577 / IEC 60747-17) |
ADUM141E1BRZ-RL7 ピン構成
| ピン 1 | VDD1 — Primary side supply voltage, 1.7V to 5.5V |
| ピン 2 | GND1 — Primary side ground |
| ピン 3 | VIA — Input channel A on primary side (3:1 forward channel 1) |
| ピン 4 | VIB — Input channel B on primary side (3:1 forward channel 2) |
| ピン 5 | VIC — Input channel C on primary side (3:1 forward channel 3) |
| ピン 6 | NC — Not connected (no fourth forward channel in 3:1 direction) |
| ピン 7 | DIS1 — Disable input for primary side (active low, internal weak pull-down) |
| ピン 8 | GND1 — Primary side ground (second pin) |
| ピン 9 | GND2 — Secondary side ground |
| ピン 10 | VOA — Output channel A on secondary side |
| ピン 11 | VOB — Output channel B on secondary side |
| ピン 12 | VOC — Output channel C on secondary side |
| ピン 13 | VID — Input channel D on secondary side (3:1 reverse channel) |
| ピン 14 | VOD — Output channel D on secondary side (echo of reverse channel - per datasheet typical) |
| ピン 15 | GND2 — Secondary side ground (second pin) |
| ピン 16 | VDD2 — Secondary side supply voltage, 1.7V to 5.5V |
主な用途
ADUM141E1BRZ-RL7 の用途: 7 件s: Isolated SPI/UART in Motor Drives, Isolated Digital Feedback in Solar Inverters, Isolated RS-485 / CAN Bus Nodes, Medical Patient-Connected Isolation, Industrial PLC Digital I/O Isolation, Isolated Gate-Driver Interface for SiC/GaN FETs, Isolated Data Acquisition Front-End.
Isolated SPI/UART in Motor Drives
The ADUM141E1BRZ-RL7's 150 Mbps data rate and 75 kV/us CMTI make it ideal for isolating SPI communication between an MCU and a high-side gate driver in industrial motor drives. With 3:1 channel direction, three forward channels carry SCLK, MOSI, and a chip-select signal from the low-voltage MCU to the high-voltage gate driver, while the single reverse channel returns the MISO response. The 75 kV/us CMTI is critical when the gate driver switches a SiC or GaN FET at dV/dt rates that would couple into legacy 25 kV/us parts. Placed between the 3.3V MCU domain and the 5V isolated gate-driver domain with 0.1uF bypass capacitors on both VDD1 and VDD2, it adds no propagation-induced timing error within a 50 MHz SCLK link, unlike an optocoupler which would limit speed to a few Mbps.
おすすめ
Isolated Digital Feedback in Solar Inverters
In a solar inverter, the ADUM141E1BRZ-RL7 isolates the digital feedback signals between the high-voltage DC-link side (typically 600V to 1500V) and the low-voltage MCU/control side. Its 3000 Vrms reinforced isolation per UL 1577 satisfies the safety barrier between the photovoltaic input and the accessible control circuitry, while the 150 Mbps speed handles PWM feedback, fault flags, and SPI commands to the inverter's DSP. The wide-body 16-SOIC package provides the required creepage and clearance for reinforced insulation over the full temperature. Placed on both the high-side gate-driver digital inputs and the low-side MCU digital outputs with proper PCB layout, it eliminates the aging and CTR degradation issues of optocouplers that have historically limited solar inverter field life to 10 years.
おすすめ
Isolated RS-485 / CAN Bus Nodes
The ADUM141E1BRZ-RL7 isolates a 4-wire SPI-to-general-purpose digital link between a microcontroller and an isolated RS-485 or CAN FD transceiver. At 150 Mbps, it covers the full speed of CAN FD at 5 Mbps and CAN XL at 10 Mbps, plus full-duplex RS-485 at 50 Mbps. The 75 kV/us CMTI permits routing through fast dV/dt switching power stages such as 48V to 12V buck converters in the same enclosure. Placed between the MCU logic and the isolated transceiver with separate VDD1 (3.3V) and VDD2 (5V) domains, the part delivers 4 channels of 3:1 direction in a single chip, eliminating two optocouplers and their drive resistors.
おすすめ
Medical Patient-Connected Isolation
The ADUM141E1BRZ-RL7's 3000 Vrms reinforced isolation per UL 1577 and IEC 60747-17 supports 2 MOPP (Means of Patient Protection) when paired with proper PCB creepage and clearance, making it suitable for medical patient-connected isolation such as patient monitors, infusion pumps, and ECG front-ends. The iCoupler monolithic air-core transformer technology avoids the aging and current-transfer-ratio degradation that affects optocouplers in long-life medical devices, extending field life beyond 10 years. At 150 Mbps, it isolates high-speed SPI between the patient-side analog front-end and the host processor with negligible timing distortion.
おすすめ
Industrial PLC Digital I/O Isolation
In industrial PLCs, the ADUM141E1BRZ-RL7 isolates 24V field-side digital inputs and outputs from the 3.3V/5V logic-side MCU. The 1.7V to 5.5V supply range on both sides supports the standard PLC power architecture. The wide operating temperature range of -40C to +125C covers industrial control cabinet specifications. Placed in a 16-SOIC wide-body footprint at every digital I/O channel, the 4-channel density reduces PCB area versus discrete optocouplers by approximately 60% and improves noise immunity with 75 kV/us CMTI versus a typical optocoupler's 10-15 kV/us.
おすすめ
Isolated Gate-Driver Interface for SiC/GaN FETs
The ADUM141E1BRZ-RL7's 75 kV/us minimum CMTI is specifically engineered for isolating gate drivers of wide-bandgap SiC and GaN FETs that switch at dV/dt rates exceeding 50 kV/us. At 150 Mbps, it carries high-frequency PWM signals up to 75 MHz SCLK-deserialized PWM to the gate driver with under 2 ns typical pulse-width distortion. The 3000 Vrms reinforced isolation provides the isolation barrier required between the low-voltage control domain and the high-voltage DC-link. Placed between the digital PWM controller and the isolated gate-driver IC, the part prevents CMTI-induced false turn-on events that would otherwise destroy the SiC FET half-bridge.
おすすめ
Isolated Data Acquisition Front-End
The ADUM141E1BRZ-RL7 isolates the digital interface of a high-precision ADC such as the AD7606C-18BSTZ from the host MCU. At 150 Mbps, it carries SPI clock and data at speeds up to 75 MHz SCLK, supporting the fastest ADC sample rates. The 4 channels in 3:1 direction carry SCLK, MOSI, and chip-select forward, and the conversion-ready MISO signal back to the MCU. The 75 kV/us CMTI is critical when the ADC samples high-voltage signals that switch rapidly. Placed adjacent to the module with 0.1uF bypass on both VDD1 and VDD2, the part delivers the timing integrity required for 18-bit ADC acquisitions without CMTI-induced bit errors.
おすすめ
おすすめ製品の概要
エンジニアリング参考データ: ADUM141E1BRZ-RL7 — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
代替品との比較
| パラメータ | この製品 | ADUM141E1BRZ | ADUM141E0BRWZ | ADUM141E1BRWZ | ADUM141D1BRWZ | Si8442BB-D-IS | ISO7842DWWR |
|---|---|---|---|---|---|---|---|
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Silicon Labs | Texas Instruments |
| Package | 16-SOIC wide-body (RW-16), 7.50 mm | 16-SOIC wide-body (RW-16), 7.50 mm | 16-SOIC wide-body (RW-16), 7.50 mm | 16-SOIC wide-body (RW-16), 7.50 mm | 16-SOIC wide-body (RW-16), 7.50 mm | 16-SOIC wide-body, 7.50 mm | 16-SOIC wide-body (DW-16), 7.50 mm |
| Data Rate | 150 Mbps | 150 Mbps | 10 Mbps | 150 Mbps | 25 Mbps | 150 Mbps | 100 Mbps |
| CMTI (minimum) | 75 kV/us | 75 kV/us | 75 kV/us | 75 kV/us | 25 kV/us | 25 kV/us | 100 kV/us |
| Isolation Voltage | 3000 Vrms | 3000 Vrms | 5000 Vrms | 3000 Vrms | 3000 Vrms | 2500 Vrms | 5700 Vrms |
| Channel Direction | 3:1 (3 forward / 1 reverse) | 3:1 | 3:1 | 3:1 | 3:1 | 4:0 (all forward) | 4:0 (all forward) |
| Supply Voltage Range | 1.7 V to 5.5 V (both sides) | 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 |
| Technology | iCoupler (magnetic) | iCoupler (magnetic) | iCoupler (magnetic) | iCoupler (magnetic) | iCoupler (magnetic) | iCoupler-class magnetic | Capacitive isolation |
| Unit Price (qty 1000) | $2.10 | $2.00 (tube, approximate) | $2.85 (approximate) | $2.10 (approximate) | $1.80 (approximate) | $1.95 (approximate) | $3.20 (approximate) |
主な差別化要因
- 75 kV/us CMTI minimum - 3x higher than legacy ADUM141D （vs ADUM141D1BRWZ)
- 150 Mbps data rate - 6x the legacy ADUM141D （vs ADUM141D1BRWZ)
- Higher CMTI than Si8442BB in same package （vs Si8442BB-D-IS)
- Magnetic iCoupler technology - no optocoupler aging （vs Optocoupler-based designs)
設計ノート
Bypass VDD1 (pin 1) and VDD2 (pin 16) with low-ESR 0.1 uF ceramic capacitors placed within 2 mm of the respective supply pins to suppress switching noise from the iCoupler transformer. Add 0.2 mm trace width for the supply rails and a 4-layer PCB with a dedicated ground plane for best EMI performance. The VDD1 and VDD2 domains must be powered from separate, isolated supplies to maintain the safety barrier.
Maintain minimum 8 mm creepage and clearance under the ADUM141E1BRZ-RL7 wide-body SOIC body for reinforced isolation per IEC 60747-17. Do not route any traces under the package body that bridge the primary and secondary ground domains. The exposed pad is not present on the wide-body 16-SOIC; thermal dissipation is handled through the SOIC leads and PCB copper pour. Use 2 oz copper on top and bottom layers for best thermal spreading.
Do not connect primary and secondary ground planes together except through the iCoupler transformer inside the chip. If your driving source is open-drain, an external pull-up of 10 kohm to the corresponding VDD is required because the input pins have only a weak internal pull-down. Avoid driving input pins faster than 1 ns rise time, as the iCoupler transformer is optimized for 150 Mbps NRZ signals and faster edges may cause CMTI-induced bit errors. The DIS1 pin (pin 7) disables the primary side outputs when pulled low.
Keep the input and output traces under the capacitor clear of any high-dV/dt switching signals such as the gate-driver output traces, switching node, or DC-link traces. The shielded area above the ADUM141E1BRZ-RL7 should be clear of copper on both top and inner layers within 2 mm of the package outline to maintain the isolation barrier and prevent contamination of the creepage path. Place the bypass capacitor ground pads directly to the corresponding GND1 or GND2 pin through vias to minimize ground bounce.
コンプライアンス情報
RoHS and REACH compliant per Analog Devices product page. UL 1577 / IEC 60747-17 reinforced isolation certified at 3000 Vrms (3.75 kVrms production test). Not AEC-Q100 qualified - select ADUM141E1BRWZ-Q1 for automotive if available.
