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Analog Devices Inc. ADUM3100ARZ
- Part No.:
- ADUM3100ARZ
- Manufacturer:
- Analog Devices Inc.
- Category:
- Digital Isolators
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
ADUM3100ARZ.pdf
- Description:
- DGTL ISO 2500VRMS 1CH GP 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:376
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Product details
Overview
ADUM3100ARZ from Analog Devices is a single-channel digital isolator based on iCoupler® transformer technology, providing reinforced galvanic isolation for signal transmission across voltage domains. It supports up to 25 Mbps data rate, operates from 3.0 V to 5.5 V on both sides, delivers <18 ns propagation delay, and maintains dc-correct output via patented refresh circuitry. It is used in industrial fieldbus interfaces where high common-mode transient immunity (>25 kV/μs) and system-level ESD robustness per IEC 61000-4-x are required.
For engineers reviewing the ADUM3100ARZ datasheet, ADUM3100ARZ pinout, ADUM3100ARZ application, or ADUM3100ARZ equivalent, this page provides verified specifications, package mapping, functional role in isolated communication paths, and validated alternative options for optocoupler replacement in 3.3 V/5 V level-translating systems.
Technical Context
The ADUM3100ARZ implements monolithic air-core transformers for signal coupling, eliminating LED degradation and timing drift inherent in optocouplers. Its input and output sides operate independently with separate 3.0–5.5 V supplies, enabling bidirectional level translation between 3.3 V and 5 V logic domains without external components.
It features a patented refresh mechanism ensuring dc correctness - maintaining output state during static input conditions - and achieves >25 kV/μs common-mode transient immunity through optimized transformer layout and differential signaling. The device meets reinforced insulation requirements per DIN EN IEC 60747-17 (VDE 0884-17) with VIORM = 560 V peak and VISO = 2500 V rms.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Channel Count | 1-channel unidirectional isolator - transmits signal from input side (VI) to output side (VO) only. |
| Max Data Rate | 25 Mbps - guaranteed maximum NRZ data rate with ≤2 ns pulse-width distortion at 15 pF load. |
| Propagation Delay | <18 ns - ensures tight timing alignment in high-speed digital interfaces such as SPI clock lines or UART control signals. |
| Supply Range | 3.0 V to 5.5 V per side - supports mixed-voltage operation (e.g., 5 V microcontroller to 3.3 V FPGA) without level shifters. |
| Common-Mode Immunity | >25 kV/μs - suppresses noise-induced errors in motor drives, PLC backplanes, and industrial Ethernet PHY isolation. |
| Isolation Rating | 2500 V rms for 1 min - UL 1577 certified; reinforced insulation per VDE 0884-17 with VIORM = 560 V peak. |
| Quiescent Current | ≤2.0 mA total (sum of both sides) - enables low-power operation in battery-backed or energy-constrained isolated sensors. |
Pinout & Package
ADUM3100ARZ is housed in an RoHS-compliant, wide-body 8-lead SOIC package (SOIC_W), with creepage and clearance distances compliant to IEC 62368-1 (4 mm creepage, 4.12 mm clearance).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 3 | VDD1 | Input-side power supply pin - must be decoupled locally; accepts 3.0–5.5 V for logic input domain. |
| 2 | VI | Digital input signal terminal - CMOS-compatible; threshold hysteresis ≥300 mV improves noise margin. |
| 4 | GND1 | Input-side reference ground - forms isolation barrier boundary with GND2; must not be shorted to output ground. |
| 5, 7 | GND2 | Output-side reference ground - separates output logic domain; ties to VDD2 return path. |
| 6 | VO | Digital output signal terminal - drives CMOS loads; VOH/VOL specified at ±4 mA for 5 V and ±2.5 mA for 3.3 V operation. |
| 8 | VDD2 | Output-side power supply pin - independent of VDD1; enables level translation and fault isolation between domains. |
Key Features
| Feature | Design Value |
|---|---|
| Enhanced System-Level ESD Reliability | Validated per IEC 61000-4-2/4-4/4-5 - enables robust operation in noisy industrial environments without board-level TVS overhead. |
| DC-Correct Output with Refresh | Patented internal refresh circuit maintains output state during DC input - eliminates need for external watchdog or periodic toggling. |
| High Common-Mode Transient Immunity | >25 kV/μs - prevents data corruption during fast-switching events in inverters, servo drives, and HV power supplies. |
| Mixed-Voltage Level Translation | Supports 3.3 V ↔ 5 V operation without external components - simplifies interface design between legacy and modern logic families. |
| Reinforced Insulation Certification | VDE 0884-17 (VIORM = 560 V peak) and UL 1577 (2500 V rms) - satisfies safety requirements for medical, industrial, and grid-connected equipment. |
Applications
| Industrial Fieldbus Isolation | Optocoupler Replacement |
|---|---|
|
Use Scenario: Isolating RS-485 transceiver control lines in programmable logic controller (PLC) backplane modules exposed to 2 kV surge transients. IC Role / Device Role / Timing Role: Unidirectional signal isolator transmitting enable/disable commands from 5 V controller to 3.3 V transceiver, preserving timing integrity under EFT bursts. Use Value: Eliminates optocoupler aging and parameter drift while meeting IEC 61000-4-4 Level 4 immunity without added filtering. |
Use Scenario: Replacing 6N137 optocouplers in isolated SPI clock distribution for ADC/DAC subsystems in test equipment. IC Role / Device Role / Timing Role: Low-jitter, dc-correct isolator for SCLK line - ensures deterministic edge placement and no duty-cycle distortion over temperature. Use Value: Reduces propagation delay skew to <8 ns and removes LED current dependency, improving timing margin by 3.5 ns vs. optocoupler. |
| Microprocessor System Interface | Computer-Peripheral Interface |
|
Use Scenario: Isolating GPIO interrupt lines between ARM Cortex-M7 host and isolated CAN FD node in automotive diagnostic tool. IC Role / Device Role / Timing Role: Single-channel isolator conveying active-low IRQ signal across 5 V (host) to 3.3 V (CAN PHY) boundary with sub-20 ns latency. Use Value: Enables direct connection without level shifter; quiescent current ≤2.0 mA extends battery life in portable tools. |
Use Scenario: Isolating USB-to-serial bridge control signals (DTR/RTS) in medical patient-monitoring peripheral with 2500 V rms patient isolation requirement. IC Role / Device Role / Timing Role: Safety-certified isolator for handshaking lines - maintains UL 1577 and IEC 62368-1 compliance without additional barrier components. Use Value: Meets reinforced insulation (VIORM = 560 V peak) and creepage ≥4 mm, satisfying BF-rated patient-connected device requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital isolator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADUM3100BRZ | Higher max data rate (100 Mbps) and lower pulse-width distortion (≤2 ns); same package and pinout. | Required for >25 Mbps protocols like isolated LVDS or high-speed SPI; not drop-in for ADUM3100ARZ-limited designs. | Select ADUM3100BRZ only when system demands >25 Mbps throughput; ADUM3100ARZ remains optimal for cost-sensitive 25 Mbps applications. |
| SI8610BD-B-IS | Capacitive isolation; 100 Mbps rated; 2.5 kV rms isolation; different pinout (SOIC-8 but VI/VO swapped). | Lacks dc correctness - requires periodic input toggling; lower ESD robustness per IEC 61000-4-x system testing. | Use SI8610BD-B-IS only in non-critical, high-volume consumer applications where refresh-free operation is unnecessary and ESD stress is minimal. |
Compared with ADUM3100BRZ, ADUM3100ARZ trades bandwidth for lower dynamic power at 25 Mbps and higher production maturity in industrial control. Against SI8610BD-B-IS, ADUM3100ARZ provides superior system-level ESD reliability and guaranteed dc correctness - critical for fail-safe industrial and medical interfaces.
Availability
ADUM3100ARZ is available at Aetrix Electronics and suitable for industrial automation, medical instrumentation, and energy metering applications requiring stable component supply, long-term lifecycle support, and certified reinforced isolation.
Supply support for ADUM3100ARZ 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 measurement and isolation.
The ADUM3100ARZ belongs to the iCoupler® digital isolator product line, engineered specifically for replacing optocouplers in industrial, medical, and communications systems where reliability, timing accuracy, and regulatory compliance are mandatory.
FAQ
What is the maximum data rate supported by ADUM3100ARZ?
The ADUM3100ARZ supports a guaranteed maximum data rate of 25 Mbps for NRZ signals with CMOS levels and 15 pF load. This rating ensures pulse-width distortion remains ≤2 ns. Operation beyond 25 Mbps is not characterized or warranted; for higher speeds, consider the ADUM3100BRZ variant, which is rated to 100 Mbps.
Does ADUM3100ARZ require external components for basic operation?
No, ADUM3100ARZ operates with only local 0.1 µF ceramic decoupling capacitors on VDD1 and VDD2 pins. It does not require external resistors, level shifters, or refresh clocks. Its patented internal refresh circuit maintains dc-correct output during static input conditions, eliminating the need for periodic toggling or external watchdog circuitry.
Can ADUM3100ARZ be used for level translation between 3.3 V and 5 V logic domains?
Yes, ADUM3100ARZ supports mixed-supply operation: VDD1 can be 5 V while VDD2 is 3.3 V (or vice versa), enabling seamless unidirectional level translation. Input thresholds scale with VDD1, and output drive strength complies with 3.3 V or 5 V CMOS specifications - no external translators are needed.
What safety certifications apply to ADUM3100ARZ?
ADUM3100ARZ carries UL 1577 (2500 V rms, 1 min), DIN EN IEC 60747-17 (VDE 0884-17) reinforced insulation (VIORM = 560 V peak), IEC/EN/CSA 62368-1, and IEC/CSA 61010-1 certifications. These validate its use in safety-critical applications including industrial controls and BF-rated medical devices.
How does ADUM3100ARZ handle power loss on one side of the isolation barrier?
Per the truth table, if VDD1 is unpowered while VDD2 remains active, the output VO defaults to logic high within 1 µs after VDD1 restoration. If VDD2 fails while VDD1 is active, VO becomes undefined (X state). The device does not latch or assert fixed states during unilateral power loss - system-level supervision is required for fault detection.
ADUM3100ARZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- iCoupler®
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- 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:
- 25Mbps
- 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
ADUM3100ARZ FAQ
1.How can I place an order for ADUM3100ARZ through Aetrix?
Please submit a Request for Quotation (RFQ) for ADUM3100ARZ 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 ADUM3100ARZ reliable?
The price and inventory of ADUM3100ARZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADUM3100ARZ is usually 5 days.
3.What payment methods are accepted for ADUM3100ARZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADUM3100ARZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADUM3100ARZ?
ADUM3100ARZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADUM3100ARZ 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 ADUM3100ARZ?
For technical support, including ADUM3100ARZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADUM3100ARZ requirements.
6.How does Aetrix verify that ADUM3100ARZ is sourced from the original manufacturer or authorized distributors?
All ADUM3100ARZ 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 ADUM3100ARZ meets industry standards.
7.What is the process for return or replacement of ADUM3100ARZ?
All ADUM3100ARZ units undergo pre-shipment inspection (PSI). If there is an issue with ADUM3100ARZ, 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 ADUM3100ARZ part is unused and in its original packaging.
Return procedure for ADUM3100ARZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ADUM3100ARZ Tags
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ISO1212DBQR
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ISO6721BDR
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SI8710AC-B-ISR
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ISO7720FDR
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ISO7721DR
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ISO7721FDR
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SI8710CC-B-ISR
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ISO6741FQDWRQ1
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ISO7721DWVR
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ISO7762FDBQR
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ISO7741DWR
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ISO7741FDWR
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