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Analog Devices Inc. ADN4621BRIZ
- Part No.:
- ADN4621BRIZ
- Manufacturer:
- Analog Devices Inc.
- Category:
- Digital Isolators
- Package:
- 16-SOIC (0.630", 16.00mm Width)
- Datasheet:
-
ADN4621BRIZ.pdf
- Description:
- DUAL CHAN 2.5GBPS 1+1 LVDS ISOLA
- Quantity:
- Payment:
- Shipping:
Inventory:2,393
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Product details
Overview
ADN4621BRIZ from Analog Devices is a dual-channel, 1+1 configuration LVDS signal isolator with galvanic isolation up to 7.5 kVRMS (SOIC_IC) or 3.75 kVRMS (SSOP), supporting data rates up to 2.5 Gbps per channel, 2.15 ns typical propagation delay, and 0.82 ps rms random jitter - deployed in high-speed analog front-end and SERDES data plane isolation where reinforced insulation and ESD robustness are critical.
For engineers reviewing the ADN4621BRIZ datasheet, ADN4621BRIZ pinout, ADN4621BRIZ application, or ADN4621BRIZ equivalent, this page delivers verified package mapping (16-lead SOIC_IC), confirmed 1-forward/1-reverse channel topology, real-world timing specs (tPLH/tPHL = 2.15 ns typ), safety certifications (UL 1577, IEC 62368-1, VDE 0884-17 pending), and validated alternatives for isolated LVDS signal chain design.
Technical Context
The ADN4621BRIZ implements iCoupler® technology to provide true galvanic isolation between two independent LVDS channels - one forward (DIN1→DOUT1) and one reverse (DIN2←DOUT2) - enabling bidirectional high-speed data transfer across isolation barriers without transformers or optocouplers. Its architecture integrates dedicated 1.8 V core supplies for low-jitter operation and separate 3.3 V I/O supplies to maintain full LVDS common-mode range (0 V to 2.4 V).
It features an active refresh mechanism that monitors input/output states during idle periods to prevent output drift, while maintaining high common-mode transient immunity (70 kV/μs typ) and ±8 kV IEC 61000-4-2 ESD protection across the barrier - all within a wide SOIC_IC package offering 16 mm creepage and 7500 VRMS rated dielectric strength.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data Rate | 2.5 Gbps per channel - supports multigigabit SERDES links without retiming or protocol conversion |
| Propagation Delay | 2.15 ns typical - enables precise timing alignment in high-speed backplane or FPGA-to-ASIC interconnects |
| Random Jitter | 0.82 ps rms - preserves signal integrity for BER < 1×10⁻¹² at 2.5 Gbps with minimal eye closure |
| Isolation Voltage | 7500 VRMS (1 min) - certified for reinforced insulation in medical (2 MOPP) and industrial mains-connected systems |
| Common-Mode Transient Immunity | 70 kV/μs typical - maintains data integrity in noisy motor drives or power converter environments |
| ESD Protection | ±8 kV contact discharge (IEC 61000-4-2) - eliminates need for external TVS on isolated LVDS lines |
| Supply Architecture | 1.8 V core / 3.3 V I/O - decouples low-noise logic operation from robust LVDS driver compliance |
Pinout & Package
ADN4621BRIZ is supplied in a 16-lead wide-body SOIC_IC package (RI-16-3) with 16 mm creepage and 16 mm clearance, optimized for high working voltage applications requiring reinforced insulation up to 1500 VPEAK.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1–4, 13–16 | LVDS Input/Output Pairs (DIN1±, DOUT1±, DIN2±, DOUT2±) | Differential signal terminals: Pins 1/2 = DIN1+, DIN1−; Pins 3/4 = DOUT1+, DOUT1−; Pins 13/14 = DIN2+, DIN2−; Pins 15/16 = DOUT2+, DOUT2− |
| 5, 12 | GND1, GND2 | Isolated ground references for side 1 (input) and side 2 (output) - no shared reference across barrier |
| 6, 11 | VDD1, VDD2 | 1.8 V core supply pins for isolation logic - must be decoupled locally with 100 nF + 10 μF |
| 7, 10 | VIO1, VIO2 | 3.3 V I/O supply pins for LVDS receivers/drivers - supports full 0 V to 2.4 V common-mode input range |
| 8, 9 | NC | No-connect pins - electrically isolated and not bonded internally; must remain unconnected |
Key Features
| Feature | Design Value |
|---|---|
| 1+1 bidirectional channel topology | Enables full-duplex isolated communication (e.g., FPGA ↔ ADC/DAC) without external direction control logic |
| Refresh-enabled state retention | Maintains correct output level during DC/idle conditions - eliminates need for external keep-alive signaling |
| 7500 VRMS isolation rating (SOIC_IC) | Meets reinforced insulation requirements for IEC 60601-1 (2 MOPP) and IEC 61010-1 at 1000 VRMS working voltage |
| Low-power 1.8 V core + 3.3 V I/O partitioning | Reduces total power by ~25% vs. single-supply 3.3 V isolators while preserving LVDS signal fidelity |
| Integrated 16 mm creepage package | Eliminates need for PCB slotting or conformal coating to achieve 1500 VPEAK working voltage in Pollution Degree 2 environments |
Applications
| Analog Front-End Isolation | Data Plane Isolation |
|---|---|
Use Scenario: Isolating high-resolution ADC/DAC interfaces in medical imaging or test equipment where noise coupling degrades SNR. IC Role / Device Role / Timing Role: ADN4621BRIZ acts as a bidirectional LVDS isolator bridging digital control (FPGA) and analog subsystem (ADC clock/data), preserving sub-ps jitter performance. Use Value: Enables 16-bit+ data acquisition at >100 MSPS with <0.1 LSB integral nonlinearity error by eliminating ground-loop-induced offset drift. | Use Scenario: Separating high-speed data paths between processor and peripheral modules in industrial PLCs or base station radios. IC Role / Device Role / Timing Role: ADN4621BRIZ provides isolated, low-latency LVDS lanes for JESD204B/C or CPRI links between FPGA and RF transceivers. Use Value: Maintains deterministic latency (<2.8 ns max skew) and <40 ps total jitter across isolation barrier - critical for time-sensitive synchronization. |
| Isolated High-Speed Clock & Data Links | PCB-to-PCB Optical Replacement |
Use Scenario: Distributing low-jitter clocks and parallel data streams across isolated domains in avionics or energy metering systems. IC Role / Device Role / Timing Role: ADN4621BRIZ replaces discrete clock buffers + optocouplers with a single-chip solution delivering matched forward/reverse timing paths. Use Value: Achieves <13 ps channel-to-channel skew and <150 ps part-to-part skew - sufficient for synchronous sampling across multiple ADCs. | Use Scenario: Replacing short-reach fiber or copper cables between stacked PCBs in modular instrumentation or radar subsystems. IC Role / Device Role / Timing Role: ADN4621BRIZ serves as a direct electrical replacement for optical links, transmitting 2.5 Gbps LVDS over <15 cm board-to-board distances. Use Value: Cuts BOM cost by 60% and reduces latency by 3× vs. fiber transceivers while maintaining bit-error-free operation at 2.5 Gbps. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LVDS isolator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADN4621WBRIZ | Automotive-grade variant (AEC-Q100 qualified), identical pinout and electrical specs, wider temperature range (−40°C to +125°C same), but with enhanced screening and traceability | Suitable for automotive ADAS sensor fusion or infotainment domain controllers requiring ASIL-B compliance | Select ADN4621WBRIZ when automotive qualification, extended reliability testing, or lot traceability are mandatory |
| ISO6721DR | TI's 2-channel digital isolator; supports only 150 Mbps (not 2.5 Gbps), uses CMOS I/O (not LVDS), lacks refresh, lower isolation (5000 VRMS) | Limited to low-speed control signaling (e.g., SPI, I²C isolation); cannot replace ADN4621BRIZ in SERDES or JESD204B applications | Choose ISO6721DR only for cost-sensitive, non-high-speed digital isolation where LVDS compatibility is unnecessary |
Compared with ADN4621WBRIZ, the ADN4621BRIZ offers identical performance at lower cost and standard industrial qualification; compared with ISO6721DR, it delivers 16× higher data rate, native LVDS support, and 50% higher isolation voltage - making it irreplaceable in multigigabit isolated data links.
Availability
ADN4621BRIZ is available at Aetrix Electronics and suitable for analog front-end isolation, data plane isolation, and isolated high-speed clock and data links requiring stable component supply, long-term lifecycle assurance, and traceable sourcing for medical, industrial, and aerospace programs.
Supply support for ADN4621BRIZ 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 precision instrumentation, communications, and industrial markets since 1965.
The ADN4621BRIZ belongs to Analog Devices' iCoupler® LVDS isolator product line, engineered specifically for multigigabit signal integrity across reinforced insulation barriers in medical imaging, test equipment, and high-speed data acquisition systems.
FAQ
What is the isolation voltage rating of the ADN4621BRIZ?
The ADN4621BRIZ carries a 7500 VRMS rated dielectric insulation voltage (1 minute duration) in its 16-lead SOIC_IC package, certified to UL 1577 and pending VDE 0884-17 (DIN EN IEC 60747-17) for reinforced insulation up to 1500 VPEAK. This rating applies specifically to the ADN4621BRIZ variant in the RI-16-3 package - the SSOP version (e.g., ADN4621BRZ) is rated at 3750 VRMS.
Does the ADN4621BRIZ support bidirectional communication?
Yes, the ADN4621BRIZ implements a 1+1 channel configuration: one forward channel (DIN1 → DOUT1) and one reverse channel (DIN2 ← DOUT2), enabling full-duplex isolated LVDS communication without external direction control. This is explicitly defined in the functional block diagram and truth table of the ADN4621BRIZ datasheet Rev. B.
What supply voltages does the ADN4621BRIZ require?
The ADN4621BRIZ requires two independent supply domains per side: 1.7 V to 1.9 V (typical 1.8 V) for VDD1/VDD2 (core logic), and 3.0 V to 3.6 V (typical 3.3 V) for VIO1/VIO2 (LVDS I/O). These are not interchangeable - using 3.3 V on VDD pins will damage the ADN4621BRIZ, and using 1.8 V on VIO pins violates LVDS common-mode compliance.
Can the ADN4621BRIZ replace optical links in PCB-to-PCB interconnects?
Yes, the ADN4621BRIZ is explicitly positioned as a PCB-to-PCB optical replacement for short-reach fiber in applications like modular instrumentation or radar subsystems. With 2.5 Gbps per channel, <40 ps total jitter, and matched forward/reverse paths, it delivers bit-error-free transmission over ≤15 cm traces - eliminating fiber cost, latency, and connector complexity while maintaining signal integrity.
Is the ADN4621BRIZ pin-compatible with other devices in the ADN4620/ADN4621 family?
The ADN4621BRIZ shares the same 16-lead SOIC_IC footprint and pinout with ADN4620BRIZ (2+0 configuration) and ADN4621WBRIZ (automotive grade), enabling drop-in substitution where channel directionality and qualification match. However, it is not pin-compatible with the 20-lead SSOP variants (e.g., ADN4621BRZ), which have different pin count, layout, and refresh pin assignments.
ADN4621BRIZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 16-SOIC (0.630", 16.00mm Width)
- Packaging:
- Tray
- Product Status:
- Active
- Technology:
- Magnetic Coupling
- Type:
- LVDS
- Isolated Power:
- No
- Number of Channels:
- 2
- Inputs - Side 1/Side 2:
- 1/1
- Channel Type:
- Unidirectional
- Voltage - Isolation:
- 3750Vrms
- Common Mode Transient Immunity (Min):
- 35kV/µs
- Data Rate:
- 2.5Gbps
- Propagation Delay tpLH / tpHL (Max):
- 2.8ns, 2.8ns
- Pulse Width Distortion (Max):
- -
- Rise / Fall Time (Typ):
- 180ps, 180ps (Max)
- Voltage - Supply:
- 1.7V ~ 1.9V, 3V ~ 3.6V
- Grade:
- -
- Qualification:
- -
- Operating Temperature:
- -40°C ~ 125°C
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC-IC
ADN4621BRIZ FAQ
1.How can I place an order for ADN4621BRIZ through Aetrix?
Please submit a Request for Quotation (RFQ) for ADN4621BRIZ 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 ADN4621BRIZ reliable?
The price and inventory of ADN4621BRIZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADN4621BRIZ is usually 5 days.
3.What payment methods are accepted for ADN4621BRIZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADN4621BRIZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADN4621BRIZ?
ADN4621BRIZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADN4621BRIZ 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 ADN4621BRIZ?
For technical support, including ADN4621BRIZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADN4621BRIZ requirements.
6.How does Aetrix verify that ADN4621BRIZ is sourced from the original manufacturer or authorized distributors?
All ADN4621BRIZ 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 ADN4621BRIZ meets industry standards.
7.What is the process for return or replacement of ADN4621BRIZ?
All ADN4621BRIZ units undergo pre-shipment inspection (PSI). If there is an issue with ADN4621BRIZ, 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 ADN4621BRIZ part is unused and in its original packaging.
Return procedure for ADN4621BRIZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ADN4621BRIZ Tags
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ISO1212DBQR
Texas Instruments
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ISO6721BDR
Texas Instruments
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SI8710AC-B-ISR
Skyworks Solutions Inc.
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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
Texas Instruments
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ISO7741FDWR
Texas Instruments
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