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Analog Devices Inc. ADN4651BRSZ-RL7
- Part No.:
- ADN4651BRSZ-RL7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Digital Isolators
- Package:
- 20-SSOP (0.209", 5.30mm Width)
- Datasheet:
-
ADN4651BRSZ-RL7.pdf
- Description:
- DGT ISO 3750VRMS 2CH LVDS 20SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:710
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Product details
Overview
ADN4651BRSZ-RL7 from Analog Devices is a dual-channel, 3.75 kVRMS galvanically isolated LVDS buffer supporting up to 600 Mbps data rate with 4.5 ns max propagation delay, 151 ps peak-to-peak total jitter, and fail-safe output high for open/short/terminated inputs. It operates from 2.5 V or 3.3 V supplies and targets high-speed isolated serial links in industrial AFEs and data planes.
For engineers reviewing the ADN4651BRSZ-RL7 datasheet, ADN4651BRSZ-RL7 pinout, ADN4651BRSZ-RL7 application, or ADN4651BRSZ-RL7 equivalent, this page delivers verified specifications, SOIC/SSOP package mapping, functional pin definitions, real-world use cases, and two validated alternative parts - all grounded in Analog Devices' Rev. G datasheet and official ordering guide.
Technical Context
The ADN4651BRSZ-RL7 integrates iCoupler® technology to isolate TIA/EIA-644-A-compliant LVDS drivers and receivers across two independent channels, enabling drop-in signal chain isolation without protocol modification. Its internal LDO accepts 3.0–3.6 V input and regulates to 2.375–2.625 V for core logic, supporting mixed-supply system integration.
It features fail-safe receiver behavior (Logic 1 output when DINx± is idle), high common-mode transient immunity (>25 kV/µs), and −75 dBc power supply ripple rejection. The device complies with UL 1577, DIN EN IEC 60747-17 (VDE 0884-17), IEC/CSA 62368-1, and IEC/CSA 60601-1 for reinforced insulation at 600 VPEAK.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Isolation Rating | 3.75 kVRMS for 1 minute (20-lead SSOP package); enables reinforced insulation per IEC/CSA 60601-1 and IEC/CSA 62368-1 in medical and industrial safety-critical systems. |
| Max Data Rate | 600 Mbps (PRBS23); supports high-throughput LVDS links such as isolated SPI, JESD204B clock/data paths, and real-time sensor data acquisition. |
| Propagation Delay | 4.5 ns maximum; ensures tight timing alignment between isolated channels for synchronous multi-channel interfaces. |
| Total Jitter (BER 1e−12) | 151 ps peak-to-peak; maintains signal integrity at 600 Mbps with <1 UI distortion, critical for low-bit-error-rate serial communication. |
| Fail-Safe Output | Outputs Logic 1 when inputs are open, shorted, or terminated but undriven; prevents undefined states in fault conditions without external pull-ups. |
| Supply Options | 2.5 V core supply (regulated internally) or 3.3 V LDO input (VIN1/VIN2 = 3.0–3.6 V); simplifies power architecture in mixed-voltage systems. |
| Operating Temp | −40°C to +125°C; qualified for extended industrial and automotive under-hood environments without derating. |
Pinout & Package
ADN4651BRSZ-RL7 uses a 20-lead SSOP package (body width 5.3 mm, creepage/clearance = 5.3 mm), rated for 3.75 kVRMS isolation. Pin functions are asymmetric versus ADN4650/ADN4652 to support cross-channel input/output routing.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 20 | VIN1 / VIN2 | Optional 3.3 V LDO inputs for Side 1 and Side 2; bypass to respective GNDx with 1 µF capacitors; enable single-rail 3.3 V system integration. |
| 2, 4, 10 / 11, 17, 19 | GND1 / GND2 | Isolated ground references for input and output sides; must be kept separate to maintain galvanic barrier integrity. |
| 3, 9 / 12, 18 | VDD1 / VDD2 | 2.5 V regulated supply outputs from internal LDOs; require 0.1 µF local decoupling to GNDx for noise suppression. |
| 5, 6 / 13, 14 | DIN1± / DIN2−, DIN2+ | Differential LVDS inputs for Channel 1 (Side 1) and Channel 2 (Side 2); accept ±100 mV threshold with 0.5|VID|–(2.4−0.5|VID|) V common-mode range. |
| 7, 8 / 15, 16 | DOUT2+, DOUT2− / DOUT1−, DOUT1+ | Differential LVDS outputs for Channel 2 (Side 2) and Channel 1 (Side 1); deliver 250–450 mV differential swing into 100 Ω loads. |
Key Features
| Feature | Design Value |
|---|---|
| Galvanic LVDS Isolation | iCoupler® technology provides 3.75 kVRMS isolation in SSOP while maintaining full TIA/EIA-644-A compliance on both sides - no signal conditioning required. |
| Fail-Safe Receiver Logic | Guarantees DOUTx± = Logic 1 during input faults (open, short, terminated), eliminating need for external biasing or watchdog circuitry in safety-critical links. |
| Low-Jitter Timing | 151 ps total jitter at 600 Mbps ensures sub-UI timing margin for high-speed serial protocols like isolated SPI and JESD204B subclass 0/1. |
| High CM Transient Immunity | >25 kV/µs common-mode transient immunity prevents data corruption in noisy motor drives, inverters, and power electronics environments. |
| Integrated LDO Support | On-chip LDOs accept 3.3 V input and generate stable 2.5 V supplies, reducing BOM count and PCB area versus discrete regulator solutions. |
Applications
| Analog Front-End Isolation | Data Plane Isolation |
|---|---|
|
Use Scenario: Isolating ADC/DAC interface lines between high-voltage sensor front-ends and low-voltage digital processing units in industrial PLCs and motor drives. IC Role / Device Role / Timing Role: Dual-channel LVDS isolator bridging analog domain and digital domain while preserving signal integrity and timing alignment at up to 600 Mbps. Use Value: Enables direct LVDS connection to precision ADCs (e.g., AD7606C, AD7768) without level-shifting or retiming, reducing latency and component count. |
Use Scenario: Segregating high-speed control data paths between FPGA-based controllers and isolated I/O modules in distributed automation systems. IC Role / Device Role / Timing Role: Signal-level isolator for bidirectional LVDS data lanes carrying configuration, status, and command streams across safety barriers. Use Value: Maintains deterministic 4.5 ns propagation delay and <100 ps pulse skew across channels, ensuring synchronized multi-axis motion control. |
| Isolated High-Speed Clock/Data Links | Isolated SPI over LVDS |
|
Use Scenario: Transmitting jitter-clean clock and data pairs from an isolated master clock generator to remote ADCs or DACs in medical imaging equipment. IC Role / Device Role / Timing Role: Low-jitter LVDS isolator preserving phase relationship between clock and data edges across isolation barrier. Use Value: Delivers 387 fs rms additive phase jitter (100 Hz–100 kHz), meeting stringent SNR requirements for MRI and ultrasound digitization. |
Use Scenario: Extending SPI bus across isolation boundary in isolated power supply monitoring, where MCU and isolated ADC share SPI but require galvanic separation. IC Role / Device Role / Timing Role: Dual-channel isolator mapping SPI SCLK/MOSI to one channel and MISO to the other, with fail-safe idle state. Use Value: Eliminates need for optocouplers or discrete digital isolators with external level shifters, reducing layout complexity and EMI susceptibility. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LVDS isolator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADN4651BRSZ | Same die, identical specs, but supplied in tube (not tape-and-reel); no functional or electrical difference from ADN4651BRSZ-RL7. | Identical use cases; preferred for prototyping or low-volume builds where reel packaging is unnecessary. | Select ADN4651BRSZ-RL7 for automated SMT assembly; choose ADN4651BRSZ for hand-soldered evaluation or small-batch production. |
| ADN4651WARSZ-RL7 | Automotive-grade variant (AEC-Q100 Grade 1); same 3.75 kVRMS, 600 Mbps, and pinout, but qualified for −40°C to +125°C with enhanced reliability testing. | Required for automotive ADAS sensors, battery management, and infotainment where AEC-Q100 compliance is mandatory. | Use ADN4651WARSZ-RL7 only when automotive qualification is contractually required; ADN4651BRSZ-RL7 suffices for industrial applications. |
Compared with ADN4651BRSZ-RL7, ADN4651BRSZ offers identical performance in tube packaging for flexibility, while ADN4651WARSZ-RL7 adds AEC-Q100 qualification at no pinout or timing cost - making it the sole drop-in automotive upgrade path without redesign.
Availability
ADN4651BRSZ-RL7 is available at Aetrix Electronics and suitable for industrial AFE isolation, data plane segmentation, and isolated high-speed clock distribution requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for ADN4651BRSZ-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, with R&D and manufacturing operations worldwide.
The ADN4651BRSZ-RL7 belongs to Analog Devices' iCoupler® LVDS isolator family, designed specifically to enable robust, high-speed galvanic isolation in industrial, medical, and communications infrastructure without compromising signal fidelity or timing accuracy.
FAQ
What is the isolation rating and package type of ADN4651BRSZ-RL7?
ADN4651BRSZ-RL7 is rated for 3.75 kVRMS isolation for 1 minute and housed in a 20-lead SSOP package with 5.3 mm creepage and clearance. This matches the RS-20 designation in Analog Devices' ordering guide and satisfies reinforced insulation requirements per IEC/CSA 60601-1 and IEC/CSA 62368-1.
Does ADN4651BRSZ-RL7 support 3.3 V-only operation without external regulators?
Yes. ADN4651BRSZ-RL7 accepts 3.0–3.6 V on VIN1 and VIN2 pins and internally regulates to 2.375–2.625 V via integrated LDOs. No external 2.5 V regulator is needed - simply bypass VINx to GNDx with 1 µF capacitors and connect VDDx pins to local 0.1 µF decoupling.
How does the fail-safe feature work on ADN4651BRSZ-RL7?
When any DINx± pair is open, shorted, or terminated but not driven (|VID| < 100 mV), ADN4651BRSZ-RL7 forces the corresponding DOUTx± to Logic 1 after a 1.2 µs delay. This behavior is inherent to the ADN4651/ADN4652 silicon and requires no external components or configuration.
Can ADN4651BRSZ-RL7 replace ADN4650BRSZ-RL7 in an existing design?
No - ADN4651BRSZ-RL7 has different pin assignments (e.g., DIN2± and DOUT2± swapped vs. ADN4650), so it is not pin-compatible. Board-level replacement requires layout revision. Use ADN4651BRSZ-RL7 only in new designs targeting its specific cross-channel routing or fail-safe requirement.
What safety certifications apply to ADN4651BRSZ-RL7?
ADN4651BRSZ-RL7 carries UL 1577 (3750 VRMS), DIN EN IEC 60747-17 (VDE 0884-17), IEC/CSA 62368-1, IEC/CSA 60601-1 (1 MOPP), and IEC/CSA 61010-1 certifications - all validated for the 20-lead SSOP package per Analog Devices' Rev. G datasheet Tables 5 and 8.
ADN4651BRSZ-RL7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- iCoupler®
- Package/Case:
- 20-SSOP (0.209", 5.30mm Width)
- Packaging:
- Tape & Reel (TR)
- 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):
- 25kV/µs
- Data Rate:
- 600Mbps
- Propagation Delay tpLH / tpHL (Max):
- 4.5ns, 4.5ns
- Pulse Width Distortion (Max):
- -
- Rise / Fall Time (Typ):
- 0.35ns, 0.35ns (Max)
- Voltage - Supply:
- 2.375V ~ 2.625V
- Grade:
- -
- Qualification:
- -
- Operating Temperature:
- -40°C ~ 125°C
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-SSOP
ADN4651BRSZ-RL7 FAQ
1.How can I place an order for ADN4651BRSZ-RL7 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADN4651BRSZ-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 ADN4651BRSZ-RL7 reliable?
The price and inventory of ADN4651BRSZ-RL7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADN4651BRSZ-RL7 is usually 5 days.
3.What payment methods are accepted for ADN4651BRSZ-RL7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADN4651BRSZ-RL7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADN4651BRSZ-RL7?
ADN4651BRSZ-RL7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADN4651BRSZ-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 ADN4651BRSZ-RL7?
For technical support, including ADN4651BRSZ-RL7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADN4651BRSZ-RL7 requirements.
6.How does Aetrix verify that ADN4651BRSZ-RL7 is sourced from the original manufacturer or authorized distributors?
All ADN4651BRSZ-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 ADN4651BRSZ-RL7 meets industry standards.
7.What is the process for return or replacement of ADN4651BRSZ-RL7?
All ADN4651BRSZ-RL7 units undergo pre-shipment inspection (PSI). If there is an issue with ADN4651BRSZ-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 ADN4651BRSZ-RL7 part is unused and in its original packaging.
Return procedure for ADN4651BRSZ-RL7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ADN4651BRSZ-RL7 Tags
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