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Analog Devices Inc. ADUM142E1BRZ-RL7
- Part No.:
- ADUM142E1BRZ-RL7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Digital Isolators
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
ADUM142E1BRZ-RL7.pdf
- Description:
- DGTL ISO 3000VRMS 4CH GP 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,581
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Product details
Overview
ADUM142E1BRZ-RL7 from Analog Devices is a quad-channel digital isolator based on iCoupler® technology, providing 3.0 kVRMS reinforced isolation and 150 Mbps guaranteed data rate. It features 13 ns max propagation delay at 5 V, 1.8 V to 5 V level translation, and fail-safe high output configuration. It is used in SPI isolation for industrial PLCs where galvanic separation and noise immunity are critical.
For engineers reviewing the ADUM142E1BRZ-RL7 datasheet, ADUM142E1BRZ-RL7 pinout, ADUM142E1BRZ-RL7 application, or ADUM142E1BRZ-RL7 equivalent, key selection criteria include common-mode transient immunity (100 kV/µs), AEC-Q100 qualification, SOIC-16 narrow-body package, and backward compatibility with ADuM1400-series devices.
Technical Context
The ADUM142E1BRZ-RL7 implements four independent unidirectional isolation channels using monolithic air-core transformers, ensuring dc-correct output states without input transitions. Its architecture supports asymmetric supply operation (e.g., 1.8 V on side 1, 5 V on side 2) and includes integrated undervoltage lockout (UVLO) with 1.5 V/1.6 V thresholds.
It delivers tight channel matching (≤3.0 ns codirectional skew) and low jitter (70 ps rms at 5 V), enabling precise timing in synchronous serial interfaces. The device meets DIN EN IEC 60747-17 (VDE 0884-17) for reinforced insulation and supports fail-safe high output behavior when input power is absent.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Isolation Rating | 3.0 kVRMS for 1 minute - enables reinforced isolation per IEC 60950-1 and IEC 60601-1 in medical and industrial systems |
| Max Data Rate | 150 Mbps - supports high-speed SPI, RS-485, and digital encoder interfaces without oversampling |
| Propagation Delay | 13 ns max at 5 V - ensures sub-ns timing margin for 50 MHz clock domains |
| Common-Mode Immunity | 100 kV/µs - maintains signal integrity in noisy motor drive or power converter environments |
| Supply Range | 1.8 V to 5 V per side - allows direct interfacing between low-voltage microcontrollers and 3.3/5 V peripherals |
| Fail-Safe Output | High - outputs default to logic high during power loss or disable, preventing undefined bus states |
| Operating Temp | −40°C to +125°C - suitable for under-hood automotive and industrial control applications |
| AEC-Q100 Grade | Grade 1 - qualified for automotive electronics per stress test requirements |
Pinout & Package
ADUM142E1BRZ-RL7 uses a 16-lead, RoHS-compliant, narrow-body SOIC (R-16) package with 7.8 mm creepage/clearance and 4.0 mm minimum external air gap. Pin 1 is marked with a dot; the package is surface-mount, gull-wing leaded.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD1 | Primary-side supply | Power for input-side logic and transformer driver; accepts 1.8–5 V |
| GND1 | Primary-side ground | Reference for input signals and VDD1; must be isolated from GND2 |
| INA, INB, INC, IND | Input channels A–D | CMOS-compatible digital inputs; accept 1.8–5 V logic levels |
| VDD2 | Secondary-side supply | Power for output-side logic and receiver; independent of VDD1 |
| GND2 | Secondary-side ground | Reference for output signals and VDD2; galvanically isolated from GND1 |
| OUTA, OUTB, OUTC, OUTD | Output channels A–D | CMOS outputs with fail-safe high behavior; drive 4 mA at VOL ≤ 0.4 V |
| DISABLE1 | Input-side enable control | Pull-down enabled; asserts tristate on all outputs when driven high |
| VE2 | Output-side enable control | Pull-up enabled; asserts tristate on all outputs when driven low |
Key Features
| Feature | Design Value |
|---|---|
| iCoupler® transformer isolation | Eliminates LED aging and CTR drift of optocouplers; enables >50-year lifetime at 125°C |
| Backward pin compatibility | Direct replacement for ADuM1400/ADuM1401/ADuM1402 in existing layouts |
| Level translation | Supports mixed-voltage systems (e.g., 1.8 V MCU ↔ 5 V ADC) across isolation barrier |
| DIN EN IEC 60747-17 certified | Meets VDE 0884-17 reinforced insulation requirements for functional safety designs |
| Low dynamic power | 7.7 mA typical total supply current at 100 Mbps (1.8 V operation), reducing thermal load |
| High-temp operation | Guaranteed performance up to +125°C ambient, validated per AEC-Q100 Grade 1 |
Applications
| Industrial PLC I/O Isolation | SPI Isolation for Precision ADCs |
|---|---|
Use Scenario: Isolating digital I/O modules in programmable logic controllers exposed to 4–20 mA field transmitters and relay coil transients. IC Role / Device Role / Timing Role: Quad-channel unidirectional isolator separating controller logic from field-side digital inputs/outputs. Use Value: 100 kV/µs CMTI prevents false triggering during switching surges; 3.0 kVRMS rating meets IEC 61000-4-5 surge immunity requirements. | Use Scenario: Isolating SPI bus between an ARM Cortex-M7 microcontroller and a 24-bit ΣΔ ADC in a battery-powered energy meter. IC Role / Device Role / Timing Role: High-speed, low-jitter isolator preserving SCLK and data timing integrity across isolation barrier. Use Value: 13 ns max propagation delay and 3.0 ns channel matching ensure setup/hold compliance at 20 MHz SPI clock rates. |
| Automotive Battery Management Systems | Medical Patient Monitoring Interfaces |
Use Scenario: Isolating cell voltage measurement ICs from the main BMS controller in EV traction battery packs. IC Role / Device Role / Timing Role: AEC-Q100 Grade 1 qualified isolator enabling safe communication across high-voltage domains (up to 1 kV DC). Use Value: Reinforced 3.0 kVRMS isolation and VDE 0884-17 certification support ISO 26262 ASIL-B system integration. | Use Scenario: Isolating ECG front-end analog signal paths from digital processing units in Class II medical devices. IC Role / Device Role / Timing Role: Safety-certified isolator meeting IEC 60601-1 creepage/clearance and patient leakage current limits. Use Value: 7.8 mm creepage in SOIC_W variant (not this part) is not applicable; this R-16 version provides 4.0 mm clearance compliant with IEC 60601-1 for Type BF applied parts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital isolator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADUM142E0BRZ-RL7 | Fail-safe output state is low (vs. high in ADUM142E1BRZ-RL7); identical timing, isolation, and package | Required where default-low bus state prevents unintended activation (e.g., enable lines) | Select ADUM142E0BRZ-RL7 only when system-level fail-safe logic requires active-low defaults |
| SI8641ED-B-IS | Capacitive isolation; 5 kVRMS rating; 150 Mbps; SOIC-16 wide-body (RW-16) package | Higher isolation voltage but wider package; different UVLO threshold (1.7 V) | Choose SI8641ED-B-IS only if 3.75 kVRMS is mandatory and PCB layout accommodates RW-16 footprint |
Compared with ADUM142E0BRZ-RL7, the ADUM142E1BRZ-RL7 provides fail-safe high outputs-critical for driving active-high enables or pull-up-biased buses-while both share identical speed, power, and AEC-Q100 qualification. Against SI8641ED-B-IS, ADUM142E1BRZ-RL7 offers narrower SOIC-N packaging and proven transformer-based reliability in high-radiation environments.
Availability
ADUM142E1BRZ-RL7 is available at Aetrix Electronics and suitable for industrial automation, automotive battery management, and medical diagnostics requiring stable component supply, long-term lifecycle assurance, and AEC-Q100-qualified isolation.
Supply support for ADUM142E1BRZ-RL7 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Analog Devices, Inc. is a global semiconductor company specializing in high-performance analog, mixed-signal, and digital signal processing technologies for precision, power, and connectivity applications.
The ADuM142x series belongs to Analog Devices' iCoupler® digital isolator product line, designed specifically for high-reliability, high-speed galvanic isolation in harsh electromagnetic environments including automotive, industrial, and medical systems.
FAQ
What is the maximum guaranteed data rate for ADUM142E1BRZ-RL7?
The ADUM142E1BRZ-RL7 guarantees a maximum data rate of 150 Mbps across its full operating temperature and voltage range. This value is tested under defined conditions (CL = 15 pF, CMOS levels) and represents the highest rate at which pulse width distortion remains within specification. Higher rates may be achievable in specific configurations but are not production-guaranteed.
Does ADUM142E1BRZ-RL7 support level translation between different supply voltages?
Yes, ADUM142E1BRZ-RL7 supports true bidirectional level translation: VDD1 can operate from 1.8 V to 5 V independently of VDD2, which also ranges from 1.8 V to 5 V. This allows direct interfacing-for example-between a 1.8 V FPGA I/O bank and a 3.3 V sensor interface, with signal integrity preserved across the isolation barrier.
What fail-safe behavior does ADUM142E1BRZ-RL7 exhibit when input power is removed?
ADUM142E1BRZ-RL7 is configured as a fail-safe high device: when VDD1 is unpowered or the DISABLE1 pin is asserted, all four outputs (OUTA–OUTD) transition to and hold a logic high state. This prevents floating or undefined bus conditions in systems where active-high enables or pull-up-biased lines are used.
Is ADUM142E1BRZ-RL7 pin-compatible with earlier ADuM1400-series isolators?
Yes, ADUM142E1BRZ-RL7 is explicitly pin-compatible with ADuM1400, ADuM1401, and ADuM1402 according to the datasheet's "Backward compatibility" section. No PCB layout changes are required when upgrading, provided the same SOIC-16 narrow-body (R-16) package is used and the fail-safe output state aligns with system requirements.
What safety certifications apply to ADUM142E1BRZ-RL7?
ADUM142E1BRZ-RL7 is certified to UL 1577 (3000 VRMS for 1 minute), IEC/EN/CSA 60950-1, IEC/CSA 60601-1, IEC/CSA 61010-1, CQC GB 4943.1, and DIN EN IEC 60747-17 (VDE 0884-17). Its VIORM rating is 565 VPEAK, supporting reinforced insulation in medical and industrial end-equipment.
ADUM142E1BRZ-RL7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- iCoupler®
- Package/Case:
- 16-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Magnetic Coupling
- Type:
- General Purpose
- Isolated Power:
- No
- Number of Channels:
- 4
- Inputs - Side 1/Side 2:
- 2/2
- Channel Type:
- Unidirectional
- Voltage - Isolation:
- 3000Vrms
- Common Mode Transient Immunity (Min):
- 75kV/µs
- Data Rate:
- 150Mbps
- Propagation Delay tpLH / tpHL (Max):
- 13ns, 13ns
- Pulse Width Distortion (Max):
- 3ns
- Rise / Fall Time (Typ):
- 2.5ns, 2.5ns
- Voltage - Supply:
- 1.7V ~ 5.5V
- Grade:
- -
- Qualification:
- -
- Operating Temperature:
- -40°C ~ 125°C
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
ADUM142E1BRZ-RL7 FAQ
1.How can I place an order for ADUM142E1BRZ-RL7 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADUM142E1BRZ-RL7 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for ADUM142E1BRZ-RL7 reliable?
The price and inventory of ADUM142E1BRZ-RL7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADUM142E1BRZ-RL7 is usually 5 days.
3.What payment methods are accepted for ADUM142E1BRZ-RL7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADUM142E1BRZ-RL7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADUM142E1BRZ-RL7?
ADUM142E1BRZ-RL7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADUM142E1BRZ-RL7 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for ADUM142E1BRZ-RL7?
For technical support, including ADUM142E1BRZ-RL7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADUM142E1BRZ-RL7 requirements.
6.How does Aetrix verify that ADUM142E1BRZ-RL7 is sourced from the original manufacturer or authorized distributors?
All ADUM142E1BRZ-RL7 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that ADUM142E1BRZ-RL7 meets industry standards.
7.What is the process for return or replacement of ADUM142E1BRZ-RL7?
All ADUM142E1BRZ-RL7 units undergo pre-shipment inspection (PSI). If there is an issue with ADUM142E1BRZ-RL7, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The ADUM142E1BRZ-RL7 part is unused and in its original packaging.
Return procedure for ADUM142E1BRZ-RL7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ADUM142E1BRZ-RL7 Tags
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