My Inquiry
My Account
Analog Devices Inc. ADUM140D0BRQZ
- Part No.:
- ADUM140D0BRQZ
- Manufacturer:
- Analog Devices Inc.
- Category:
- Digital Isolators
- Package:
- 16-SSOP (0.154", 3.90mm Width)
- Datasheet:
-
ADUM140D0BRQZ.pdf
- Description:
- DGTL ISO 3000VRMS 4CH GP 16QSOP
- Quantity:
- Payment:
- Shipping:
Inventory:648
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
ADUM140D0BRQZ from Analog Devices is a quad-channel digital isolator based on iCoupler® technology, providing 3.0 kVRMS galvanic isolation for high-noise industrial and automotive interfaces. It delivers 150 Mbps guaranteed data rate, 13 ns max propagation delay at 5 V, and operates across 1.8 V to 5 V supply rails with level translation capability. It is used in SPI isolation between MCU and isolated ADCs in motor control inverters.
For engineers reviewing the ADUM140D0BRQZ datasheet, ADUM140D0BRQZ pinout, ADUM140D0BRQZ application, or ADUM140D0BRQZ equivalent, key selection criteria include common-mode transient immunity (100 kV/µs), fail-safe output state configuration, SOIC-16 QSOP package footprint, and AEC-Q100 qualification for automotive use.
Technical Context
The ADUM140D0BRQZ implements four independent unidirectional isolation channels using monolithic air-core transformers, ensuring dc-correct output behavior without input transitions. Its architecture supports asymmetric supply operation (e.g., 1.8 V side / 3.3 V side) and includes integrated undervoltage lockout (UVLO) with 1.5 V/1.6 V thresholds per side.
It features two configurable fail-safe modes-outputs default high or low upon input-side power loss-and supports disable/enable control via dedicated pins. The device meets DIN EN IEC 60747-17 (VDE 0884-17) reinforced insulation requirements with VIORM = 565 Vpeak and CTI >400 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data Rate | 150 Mbps maximum - guarantees full-speed SPI, RS-485, and CAN FD signal integrity across isolation barrier |
| Propagation Delay | 13 ns max at 5 V - enables tight timing budgets in real-time control loops and high-speed serial interfaces |
| Common-Mode Transient Immunity | 100 kV/µs - maintains signal integrity in high-dV/dt environments like IGBT gate drivers and motor drives |
| Isolation Voltage | 3.0 kVRMS for 1 minute - certified for reinforced insulation per UL 1577 and IEC 60950-1 |
| Supply Range | 1.8 V to 5 V per side - allows direct interfacing between low-voltage MCUs and higher-voltage peripherals |
| Operating Temperature | −40°C to +125°C - qualified for under-hood automotive and industrial ambient conditions |
| Fail-Safe Output | Configurable high/low default - ensures deterministic system state during power-up, brownout, or fault conditions |
Pinout & Package
ADUM140D0BRQZ is housed in a 16-lead RoHS-compliant QSOP package (RQ-16), offering compact footprint and 3.5 mm creepage/clearance for 3.0 kVRMS isolation. Pin functions are validated per Analog Devices' Pin Configurations and Function Descriptions section (Rev. K, p.20).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD1 | Primary-side power supply | Supplies input-side logic and isolator transmitter; supports 1.8–5 V operation |
| GND1 | Primary-side ground reference | Return path for VDD1; must be separated from secondary-side ground by isolation barrier |
| INA, INB, INC, IND | Input signal terminals | Accept CMOS-level signals; threshold defined as 0.3×VDDx / 0.7×VDDx |
| VDD2 | Secondary-side power supply | Supplies output-side logic and isolator receiver; independently biased from VDD1 |
| GND2 | Secondary-side ground reference | Return path for VDD2; galvanically isolated from GND1 |
| OUTA, OUTB, OUTC, OUTD | Isolated output signals | CMOS-compatible outputs with VOH ≥ VDD2 − 0.4 V @ 4 mA sink/source |
| DISABLE1 | Input-side disable control | Pull-high to disable all inputs; internal 15 µA pull-down ensures safe default |
| VE2 | Output-enable control | Pull-low to enable outputs; internal 3 µA pull-up ensures tristate on power loss |
Key Features
| Feature | Design Value |
|---|---|
| iCoupler® transformer isolation | Eliminates LED aging and CTR degradation of optocouplers; enables 50-year lifetime at 125°C |
| 1.8 V to 5 V level translation | Allows direct interface between 1.8 V FPGA I/O and 3.3 V sensor subsystems without external level shifters |
| AEC-Q100 Grade 1 qualification | Validated for automotive applications including battery management systems and ADAS domain controllers |
| Low dynamic power consumption | 7.2 mA typical supply current at 100 Mbps (side 1) and 8.4 mA (side 2) minimizes thermal load in dense PCB layouts |
| DIN EN IEC 60747-17 compliance | Meets latest VDE 0884-17 reinforced insulation standard for medical (60601-1) and industrial safety |
Applications
| Motor Control Inverter | SPI Isolation for Precision ADC |
|---|---|
|
Use Scenario: Isolating gate driver control signals from MCU in 3-phase inverter stacks subject to ±1.2 kV fast transients. IC Role / Device Role / Timing Role: Quad-channel unidirectional isolator transmitting PWM enable, fault feedback, and status signals across 3.0 kVRMS barrier. Use Value: 100 kV/µs CMTI prevents false triggering during IGBT switching; 13 ns delay preserves dead-time accuracy. |
Use Scenario: Isolating SPI bus between isolated precision ADC (e.g., AD7779) and host processor in high-voltage energy metering. IC Role / Device Role / Timing Role: Bidirectional SPI clock/data isolation with independent supply domains (1.8 V ADC side / 3.3 V MCU side). Use Value: Level translation eliminates external voltage translators; 150 Mbps supports oversampled 24-bit conversion at 1 MSPS. |
| Automotive Battery Management System | Industrial Fieldbus Node |
|
Use Scenario: Signal isolation between cell monitor ICs and BMS microcontroller in 800 V EV battery packs. IC Role / Device Role / Timing Role: Isolating voltage/current measurement data and cell balancing commands with fail-safe low default on power loss. Use Value: AEC-Q100 qualification ensures reliability; 125°C operation supports under-pack mounting near cells. |
Use Scenario: Isolating RS-485 transceiver control lines and data paths in PROFIBUS DP slave nodes deployed in factory automation. IC Role / Device Role / Timing Role: Galvanically separating microcontroller UART and isolated RS-485 PHY while maintaining ESD robustness. Use Value: 3.0 kVRMS withstand and 4.0 mm creepage meet IEC 61000-4-5 surge immunity requirements for Class A fieldbus equipment. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad digital isolator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADUM141D0BRQZ | Same RQ-16 QSOP package and 3.0 kVRMS rating, but with different channel directionality (3 forward / 1 reverse vs. ADUM140D0BRQZ's 4 forward) | Preferred when bidirectional SPI clock/data sharing requires one reverse channel for SDO feedback | Select ADUM140D0BRQZ for fully unidirectional control paths; ADUM141D0BRQZ when return-path signaling is needed |
| SI8640ED-B-IS | 4-channel isolator in SOIC-16 wide-body package; rated 3.75 kVRMS, 150 Mbps, but lacks AEC-Q100 qualification and failsafe configuration | Suitable for industrial-only designs where higher isolation voltage is prioritized over automotive qualification | Choose ADUM140D0BRQZ when automotive compliance or programmable fail-safe state is required |
Compared with ADUM141D0BRQZ and SI8640ED-B-IS, ADUM140D0BRQZ uniquely combines AEC-Q100 qualification, configurable fail-safe outputs, and 4-forward-channel architecture in a space-constrained QSOP package-making it optimal for automotive motor control and isolated data acquisition where deterministic startup behavior and layout density are critical.
Availability
ADUM140D0BRQZ is available at Aetrix Electronics and suitable for automotive battery management systems, industrial motor drives, and isolated precision data acquisition requiring stable component supply and long-term lifecycle support.
Supply support for ADUM140D0BRQZ 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 leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets.
The ADuM140x series belongs to Analog Devices' iCoupler® digital isolator product line, designed specifically for replacing optocouplers in noise-immune, high-reliability, and space-constrained isolation applications across automotive and industrial systems.
FAQ
What is the maximum guaranteed data rate for ADUM140D0BRQZ?
The ADUM140D0BRQZ guarantees a maximum data rate of 150 Mbps across its full operating temperature range (−40°C to +125°C) and supply voltage range (1.8 V to 5 V). This is verified per Table 1 through Table 7 in the Rev. K datasheet and applies to all four channels simultaneously under CL = 15 pF loading. Higher rates may be achievable but are not production-guaranteed.
Does ADUM140D0BRQZ support level translation between different supply voltages?
Yes, ADUM140D0BRQZ supports true bidirectional level translation: VDD1 and VDD2 can operate independently from 1.8 V to 5 V. For example, inputs referenced to 1.8 V logic can drive outputs compatible with 3.3 V or 5 V peripherals, enabling direct interface between ultra-low-power sensors and legacy industrial controllers without external level shifters.
What fail-safe output behavior does ADUM140D0BRQZ provide?
ADUM140D0BRQZ offers configurable fail-safe output states: outputs default to either high or low when input-side power (VDD1) is absent or DISABLE1 is asserted. This behavior is fixed per variant-D0 suffix indicates "fail-safe low" (outputs go low on power loss), confirmed in the Ordering Guide and Truth Tables (Rev. K, p.19). No external components are needed to enforce this state.
Is ADUM140D0BRQZ qualified for automotive applications?
Yes, ADUM140D0BRQZ is AEC-Q100 qualified for Grade 1 (−40°C to +125°C ambient) operation. This qualification covers stress testing for temperature cycling, humidity, ESD, and mechanical shock-validating its suitability for under-hood automotive systems such as battery management, motor control, and ADAS domain controllers.
What package type and footprint does ADUM140D0BRQZ use?
ADUM140D0BRQZ uses the RQ-16 QSOP package: 16-lead, gull-wing, 0.65 mm pitch, with 3.5 mm minimum creepage and clearance. Its dimensions (4.4 mm × 5.0 mm × 1.75 mm) and land pattern match industry-standard QSOP-16 footprints, enabling drop-in compatibility with existing designs using similar isolators like ADUM1401ARQZ.
ADUM140D0BRQZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- iCoupler®
- Package/Case:
- 16-SSOP (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Technology:
- Magnetic Coupling
- Type:
- General Purpose
- Isolated Power:
- No
- Number of Channels:
- 4
- Inputs - Side 1/Side 2:
- 4/0
- 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-QSOP
ADUM140D0BRQZ FAQ
1.How can I place an order for ADUM140D0BRQZ through Aetrix?
Please submit a Request for Quotation (RFQ) for ADUM140D0BRQZ 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 ADUM140D0BRQZ reliable?
The price and inventory of ADUM140D0BRQZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADUM140D0BRQZ is usually 5 days.
3.What payment methods are accepted for ADUM140D0BRQZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADUM140D0BRQZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADUM140D0BRQZ?
ADUM140D0BRQZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADUM140D0BRQZ 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 ADUM140D0BRQZ?
For technical support, including ADUM140D0BRQZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADUM140D0BRQZ requirements.
6.How does Aetrix verify that ADUM140D0BRQZ is sourced from the original manufacturer or authorized distributors?
All ADUM140D0BRQZ 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 ADUM140D0BRQZ meets industry standards.
7.What is the process for return or replacement of ADUM140D0BRQZ?
All ADUM140D0BRQZ units undergo pre-shipment inspection (PSI). If there is an issue with ADUM140D0BRQZ, 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 ADUM140D0BRQZ part is unused and in its original packaging.
Return procedure for ADUM140D0BRQZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ADUM140D0BRQZ Tags
-
ISO1212DBQR
Texas Instruments
-
ISO6721BDR
Texas Instruments
-
SI8710AC-B-ISR
Skyworks Solutions Inc.
-
ISO7720FDR
Texas Instruments
-
ISO7721DR
Texas Instruments
-
ISO7721FDR
Texas Instruments
-
SI8710CC-B-ISR
Skyworks Solutions Inc.
-
ISO6741FQDWRQ1
Texas Instruments
-
ISO7721DWVR
Texas Instruments
-
ISO7762FDBQR
Texas Instruments
-
ISO7741DWR
Texas Instruments
-
ISO7741FDWR
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
