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Analog Devices Inc. ADUM1100BRZ-RL7
- Part No.:
- ADUM1100BRZ-RL7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Digital Isolators
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
ADUM1100BRZ-RL7.pdf
- Description:
- DGTL ISO 2500VRMS 1CH GP 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,398
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Product details
Overview
ADUM1100BRZ-RL7 from Analog Devices is a single-channel digital isolator based on iCoupler® transformer technology, providing reinforced galvanic isolation between input and output domains. It supports up to 100 Mbps data rate at 5 V operation, operates from 3.0 V to 5.5 V supplies on both sides, delivers <18 ns propagation delay, and maintains dc correctness via patented refresh circuitry. It is used in industrial field bus interfaces where high-speed signal integrity and noise immunity are critical.
For engineers reviewing the ADUM1100BRZ-RL7 datasheet, ADUM1100BRZ-RL7 pinout, ADUM1100BRZ-RL7 application, or ADUM1100BRZ-RL7 equivalent, this page provides verified technical context, exact pin functions, real-world application mappings, and validated alternative options for industrial interface isolation design.
Technical Context
The ADUM1100BRZ-RL7 implements monolithic air-core transformer coupling with CMOS interface circuitry on both sides, enabling bidirectional signal transfer across an isolation barrier without optocoupler limitations. Its architecture includes integrated refresh logic to retain output state during input power loss and hysteresis-enhanced input comparators for robust noise rejection.
It supports asymmetric supply configurations (e.g., 5 V input / 3.3 V output), achieves >25 kV/μs common-mode transient immunity, and complies with DIN EN IEC 60747-17 (VDE 0884-17) for reinforced insulation at 560 Vpeak. The device is rated for operation up to +105°C ambient and features safety certifications including UL 1577 (2500 Vrms/1 min) and IEC/EN/CSA 62368-1.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Max Data Rate | 100 Mbps at 5 V operation - enables high-speed serial links such as RS-485 or CAN FD physical layer isolation without timing bottlenecks. |
| Propagation Delay | <18 ns - ensures tight timing alignment in real-time control loops and synchronous communication protocols. |
| Supply Range | 3.0 V to 5.5 V per side - allows direct interfacing with mixed-voltage systems (e.g., 3.3 V MCU to 5 V sensor bus). |
| Common-Mode Immunity | >25 kV/μs - sustains reliable operation in noisy industrial environments with fast-switching power electronics. |
| Isolation Rating | 2500 Vrms/1 min, VIORM = 560 Vpeak - meets reinforced insulation requirements for functional safety in PLC and motor drive applications. |
| Operating Temp | −40°C to +105°C - qualified for under-hood automotive and factory-floor industrial deployments. |
| Quiescent Current | ≤0.8 mA total (both sides @ 5 V) - reduces standby power in battery-backed or energy-sensitive systems. |
Pinout & Package
ADUM1100BRZ-RL7 is housed in an 8-lead SOIC_N (Small Outline Integrated Circuit, Narrow-body) package, RoHS compliant, with 1.27 mm lead pitch and standard JEDEC MS-012AC footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 3 | VDD1 | Input-side power supply (3.0–5.5 V); pins internally connected - must be decoupled locally with 0.1 μF ceramic capacitor. |
| 2 | VI | Digital input signal terminal; accepts CMOS-level logic referenced to GND1; hysteresis improves noise margin. |
| 4 | GND1 | Input-side ground reference; forms isolation barrier boundary with GND2 - must be separated on PCB. |
| 5, 7 | GND2 | Output-side ground reference; pins internally connected - requires separate low-impedance return path. |
| 6 | VO | Digital output signal terminal; drives CMOS loads referenced to GND2; rail-to-rail swing with defined VOH/VOL. |
| 8 | VDD2 | Output-side power supply (3.0–5.5 V); independent of VDD1 - enables level translation and dual-supply operation. |
Key Features
| Feature | Design Value |
|---|---|
| DC-correct output retention | Patented refresh circuit updates output state every ~1.2 Mbps even during input-side power loss - eliminates need for external watchdog or re-synchronization logic. |
| Asymmetric voltage operation | Supports 5 V/3.3 V or 3.3 V/5 V cross-supply configurations - simplifies interface between legacy 5 V peripherals and modern 3.3 V microcontrollers. |
| Low propagation skew | tPSK2 ≤ 6 ns (equal temp/supply) - ensures matched edge timing critical for clock forwarding and deterministic serial protocols. |
| High CMTI immunity | >25 kV/μs common-mode transient rejection - prevents false triggering in motor drives with fast IGBT switching. |
| Safety-certified isolation | UL 1577, VDE 0884-17, IEC 62368-1 certified - satisfies reinforced insulation requirements for industrial safety standards without additional system-level validation. |
Applications
| Industrial Field Bus Isolation | Optocoupler Replacement |
|---|---|
|
Use Scenario: Isolating RS-485 transceivers in programmable logic controllers to prevent ground loop currents and noise coupling between controller and field devices. IC Role / Device Role / Timing Role: Single-channel unidirectional signal isolator placed between MCU UART TX and RS-485 driver input, preserving signal integrity at up to 100 Mbps. Use Value: Eliminates LED aging and temperature drift issues of optocouplers while maintaining <18 ns propagation delay for deterministic bus timing. |
Use Scenario: Replacing 4N25 or HCPL-0600 in legacy industrial I/O modules requiring galvanic separation between microcontroller and relay drivers. IC Role / Device Role / Timing Role: Pin-compatible drop-in replacement delivering identical logic function with superior speed, lower power, and guaranteed DC correctness. Use Value: Reduces board space by 50% vs. DIP-8 optocouplers and cuts quiescent current by >90% at 1 Mbps operation. |
| Microprocessor System Interface | General Instrumentation |
|
Use Scenario: Isolating debug interfaces (e.g., SWD/JTAG) in safety-critical embedded systems to protect host debugger from high-voltage target boards. IC Role / Device Role / Timing Role: Unidirectional isolator on SWDIO line, operating at 3.3 V/3.3 V with <2 ns pulse width distortion for reliable high-frequency programming. Use Value: Enables full-speed debug communication up to 10 MHz without signal degradation or metastability risk. |
Use Scenario: Isolating analog-to-digital converter (ADC) serial interface lines in precision data acquisition systems exposed to EMI from adjacent switching power supplies. IC Role / Device Role / Timing Role: SPI clock/data isolator between isolated ADC and host processor, supporting 50 Mbps operation with <3 ns PWD for accurate sample timing. Use Value: Prevents noise injection into ADC reference domain while maintaining sub-nanosecond timing correlation between samples. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital isolator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SI8610BB-B-IS | Single-channel, 100 Mbps, 3.0–5.5 V, capacitive isolation; tPHL/tPLH = 12 ns typical; no refresh feature. | Lacks dc-correct refresh - output may float or latch incorrectly during input-side brownout or power interruption. | Prefer ADUM1100BRZ-RL7 when system-level reliability requires guaranteed output state retention during input power loss. |
| ISO6710DR | Single-channel, 50 Mbps, 1.71–5.5 V, capacitive isolation; tPHL/tPLH = 14 ns max; supports 1.8 V logic. | Lower max data rate and no 100 Mbps capability; wider supply range but higher quiescent current (1.2 mA @ 5 V). | Choose ADUM1100BRZ-RL7 for designs needing 100 Mbps performance or operation above 105°C ambient. |
Compared with SI8610BB-B-IS and ISO6710DR, ADUM1100BRZ-RL7 uniquely combines 100 Mbps speed, 105°C rating, and patented refresh-based DC correctness - making it optimal for industrial fieldbus and safety-critical microprocessor interface isolation where timing fidelity and state retention are non-negotiable.
Availability
ADUM1100BRZ-RL7 is available at Aetrix Electronics and suitable for industrial automation, motor control, and test instrumentation requiring stable component supply, long-term lifecycle support, and certified reinforced isolation.
Supply support for ADUM1100BRZ-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 leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, headquartered in Wilmington, MA.
The ADuM1100 series was designed specifically for replacing optocouplers in high-speed industrial and automotive interfaces, emphasizing low propagation delay, high CMTI, and guaranteed DC correctness through transformer-based isolation.
FAQ
What is the maximum data rate supported by ADUM1100BRZ-RL7?
The ADUM1100BRZ-RL7 supports up to 100 Mbps at 5 V operation and up to 50 Mbps at 3.3 V operation, as specified in Tables 1 and 2 of the Rev. L datasheet. This rating applies only to the BR-grade variant; AR-grade parts are limited to 25 Mbps. The 100 Mbps capability enables use in high-speed serial interfaces like isolated USB-UART bridges and fast fieldbus nodes.
Does ADUM1100BRZ-RL7 require external components for basic operation?
Yes - ADUM1100BRZ-RL7 requires two 0.1 μF ceramic bypass capacitors: one between VDD1 and GND1, and another between VDD2 and GND2, placed as close as possible to the respective supply pins. No pull-up/down resistors or external refresh circuitry are needed, as the device integrates all necessary logic, including patented dc-correct refresh functionality.
Can ADUM1100BRZ-RL7 operate with different supply voltages on input and output sides?
Yes - ADUM1100BRZ-RL7 supports mixed-supply operation: 5 V on VDD1 with 3.3 V on VDD2, or vice versa. Table 3 in the datasheet confirms valid operation at 5 V/3 V and 3 V/5 V configurations, enabling seamless level translation between legacy 5 V peripherals and modern 3.3 V microcontrollers without external level shifters.
What safety certifications does ADUM1100BRZ-RL7 hold?
ADUM1100BRZ-RL7 is certified to UL 1577 (2500 Vrms/1 min), DIN EN IEC 60747-17 (VDE 0884-17) for reinforced insulation (VIORM = 560 Vpeak), IEC/EN/CSA 62368-1, and IEC/CSA 61010-1. These approvals are documented in Table 5 and Section 9 of the Rev. L datasheet and apply directly to the ADUM1100BRZ-RL7 part number.
How does the refresh feature in ADUM1100BRZ-RL7 work?
The ADUM1100BRZ-RL7 incorporates a patented internal refresh circuit that monitors the input state and periodically updates the output side at ~1.2 Mbps, even if the input signal is static or the input supply is interrupted. This ensures the output retains its last valid logic state during brownouts or power loss - a key advantage over optocouplers and many competing digital isolators that lack dc-correct behavior.
ADUM1100BRZ-RL7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- iCoupler®
- Package/Case:
- 8-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:
- 1
- Inputs - Side 1/Side 2:
- 1/0
- Channel Type:
- Unidirectional
- Voltage - Isolation:
- 2500Vrms
- Common Mode Transient Immunity (Min):
- 25kV/µs
- Data Rate:
- 100Mbps
- Propagation Delay tpLH / tpHL (Max):
- 18ns, 18ns
- Pulse Width Distortion (Max):
- 2ns
- Rise / Fall Time (Typ):
- 3ns, 3ns
- Voltage - Supply:
- 3V ~ 5.5V
- Grade:
- -
- Qualification:
- -
- Operating Temperature:
- -40°C ~ 105°C
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
ADUM1100BRZ-RL7 FAQ
1.How can I place an order for ADUM1100BRZ-RL7 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADUM1100BRZ-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 ADUM1100BRZ-RL7 reliable?
The price and inventory of ADUM1100BRZ-RL7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADUM1100BRZ-RL7 is usually 5 days.
3.What payment methods are accepted for ADUM1100BRZ-RL7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADUM1100BRZ-RL7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADUM1100BRZ-RL7?
ADUM1100BRZ-RL7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADUM1100BRZ-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 ADUM1100BRZ-RL7?
For technical support, including ADUM1100BRZ-RL7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADUM1100BRZ-RL7 requirements.
6.How does Aetrix verify that ADUM1100BRZ-RL7 is sourced from the original manufacturer or authorized distributors?
All ADUM1100BRZ-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 ADUM1100BRZ-RL7 meets industry standards.
7.What is the process for return or replacement of ADUM1100BRZ-RL7?
All ADUM1100BRZ-RL7 units undergo pre-shipment inspection (PSI). If there is an issue with ADUM1100BRZ-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 ADUM1100BRZ-RL7 part is unused and in its original packaging.
Return procedure for ADUM1100BRZ-RL7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ADUM1100BRZ-RL7 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
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