My Inquiry
My Account
Analog Devices Inc. ADUM3201CRZ-RL7
- Part No.:
- ADUM3201CRZ-RL7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Digital Isolators
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
ADUM3201CRZ-RL7.pdf
- Description:
- DGTL ISO 2500VRMS 2CH GP 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:5,070
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
ADUM3201CRZ-RL7 from Analog Devices is a dual-channel, bidirectional digital isolator based on iCoupler® transformer technology, providing galvanic isolation between two independent signal paths. It supports data rates up to 25 Mbps (NRZ), operates at 3.3 V or 5 V on either side, and delivers precise timing with ≤3 ns pulse width distortion and ≤3 ns channel-to-channel matching - enabling reliable SPI and RS-485 interface isolation in industrial motor drives and battery monitoring systems.
For engineers reviewing the ADUM3201CRZ-RL7 datasheet, ADUM3201CRZ-RL7 pinout, ADUM3201CRZ-RL7 application, or ADUM3201CRZ-RL7 equivalent, key selection criteria include its enhanced system-level ESD reliability per IEC 61000-4-x, 2500 VRMS isolation rating, 125°C high-temperature operation, and mixed-voltage level translation capability across the isolation barrier.
Technical Context
The ADUM3201CRZ-RL7 implements two independent unidirectional or bidirectional isolated channels using monolithic air-core transformers, eliminating LED/photodiode aging and CTR drift inherent in optocouplers. Its architecture enables deterministic propagation delay (≤45 ns max at 125°C, 5 V) and low pulse width distortion (≤3 ns), critical for synchronous serial protocols.
It features integrated refresh circuitry to maintain DC correctness and supports asymmetric supply configurations (e.g., 5 V primary / 3.3 V secondary), with common-mode transient immunity exceeding 25 kV/µs. Safety certification includes UL 1577 (2500 VRMS), DIN EN IEC 60747-17 (VIORM = 560 VPEAK), and IEC/EN/CSA 62368-1.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data Rate | DC to 25 Mbps NRZ - supports full-speed SPI, CAN FD physical layer signaling, and high-throughput sensor interfaces without oversampling. |
| Isolation Rating | 2500 VRMS for 1 minute (UL 1577); VIORM = 560 VPEAK (DIN EN IEC 60747-17) - meets reinforced insulation requirements for industrial PLC I/O modules. |
| Propagation Delay Skew | ≤15 ns (C grade, 125°C) - ensures tight timing alignment between isolated channels in dual-data-path applications like encoder feedback. |
| Supply Current | 1.1 mA per channel @ 1 Mbps (3.3 V), 7.0 mA per channel @ 25 Mbps (5 V) - enables low-power isolated communication in battery-backed systems. |
| Common-Mode Transient Immunity | >25 kV/µs - sustains signal integrity during fast-switching events in motor drives and inverters with high dv/dt noise. |
| Operating Temperature | −40°C to +125°C - qualified for under-hood automotive battery monitors and industrial power converters. |
| Logic Thresholds | VIH = 0.7 × VDDx, VIL = 0.3 × VDDx - enables robust noise margin across 3.3 V/5 V mixed-supply systems without external level shifters. |
Pinout & Package
Narrow-body, RoHS-compliant 8-lead SOIC package (SOIC_N), 5.3 mm × 6.2 mm footprint, 1.75 mm height; creepage/clearance ≥ 5.0 mm per IEC 60664-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (VDD1) | Primary-side power supply | Accepts 3.0–5.5 V; powers input-side logic and transformer driver; decoupling required within 10 mm. |
| Pin 2 (GND1) | Primary-side ground reference | Must be separated from secondary ground by ≥5.0 mm; forms isolation barrier boundary with Pin 7/8. |
| Pin 3 (INA) | Channel A input | CMOS-compatible digital input; accepts 0.3×VDD1 to 0.7×VDD1 thresholds; no external pull-up needed. |
| Pin 4 (INB) | Channel B input | Independent CMOS input; supports asynchronous dual-channel isolation for SPI SCLK/MOSI or RS-485 DE/RE control. |
| Pin 5 (OUTA) | Channel A output | CMOS output driving secondary-side load; VOH ≥ VDD2 − 0.2 V @ 3.2 mA; VOL ≤ 0.4 V @ 3.2 mA. |
| Pin 6 (OUTB) | Channel B output | Matched timing with OUTA (≤3 ns skew); enables synchronized isolated data transfer in encoder or PWM feedback loops. |
| Pin 7 (GND2) | Secondary-side ground reference | Isolated return path; must not connect to GND1; defines secondary-side voltage domain for VDD2. |
| Pin 8 (VDD2) | Secondary-side power supply | Accepts 3.0–5.5 V independently; enables level translation (e.g., 5 V MCU ↔ 3.3 V ADC) across isolation barrier. |
Key Features
| Feature | Design Value |
|---|---|
| iCoupler® transformer isolation | Eliminates optocoupler CTR degradation and lifetime uncertainty; provides stable timing over temperature and 50+ year insulation lifetime. |
| Enhanced system-level ESD | Validated per IEC 61000-4-2 (±8 kV contact), IEC 61000-4-4 (±2 kV EFT), and IEC 61000-4-5 (±1 kV surge) - reduces board-level protection component count. |
| Bidirectional channel configuration | Supports both unidirectional (INA→OUTA, INB→OUTB) and bidirectional modes via external logic - simplifies SPI full-duplex isolation. |
| Mixed-voltage operation | VDD1 and VDD2 operate independently at 3.3 V or 5 V - enables direct interfacing between legacy 5 V controllers and modern 3.3 V sensors/ADCs. |
| High-temperature qualification | Rated for continuous operation at 125°C ambient - suitable for placement near power stages in motor drives and EV battery management units. |
Applications
| SPI Interface Isolation | RS-485 Transceiver Isolation |
|---|---|
|
Use Scenario: Isolating SPI bus between microcontroller and isolated ADC/DAC in industrial process control. IC Role / Device Role / Timing Role: Dual-channel isolator separating clock (SCLK), data (MOSI/MISO), and chip select (CS) signals while maintaining sub-5 ns timing skew. Use Value: Enables 25 Mbps SPI operation with guaranteed DC correctness and no refresh-induced glitches - critical for real-time closed-loop control. |
Use Scenario: Galvanically isolating RS-485 transceiver control lines (DE/RE) and data lines (A/B) in factory automation networks. IC Role / Device Role / Timing Role: Provides independent isolation for direction-control and differential data paths, preserving signal edge integrity at 20 Mbps. Use Value: Prevents ground loop currents and common-mode noise from disrupting multi-drop bus communication in noisy plant-floor environments. |
| Digital Field Bus Isolation | Battery Monitor Isolation |
|
Use Scenario: Isolating CAN or PROFIBUS DP interface in distributed I/O modules requiring functional safety compliance. IC Role / Device Role / Timing Role: Bidirectional channel pair isolating TXD/RXD lines with matched propagation delay (<15 ns) to meet CAN FD timing budgets. Use Value: Maintains bit timing accuracy across isolation barrier while meeting IEC 61000-4-x ESD immunity requirements for Class A field equipment. |
Use Scenario: Isolating cell voltage measurement and balancing control signals in high-voltage EV battery packs (≥400 V). IC Role / Device Role / Timing Role: Dual-channel isolator separating analog front-end SPI outputs and digital balancing FET gate drive commands. Use Value: Supports reinforced insulation (2500 VRMS) and 125°C operation - enabling compact, thermally robust BMS designs compliant with ISO 26262 ASIL-B. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital isolator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SI8621ED-B-IS | Capacitive isolation; 25 Mbps; 5000 VRMS rating; higher CMTI (75 kV/µs); no refresh circuitry. | Superior noise immunity in ultra-high dv/dt environments (e.g., SiC inverters); lacks DC correctness guarantee at zero data rate. | Select when CMTI >50 kV/µs is mandatory and DC-correctness is not required for idle states. |
| ISO7721DR | Capacitive isolation; 100 Mbps; 5000 VRMS; lower quiescent current (0.7 mA/ch @ 1 Mbps); no 125°C rating. | Better suited for high-speed, low-power consumer or telecom applications; not qualified for automotive or industrial 125°C operation. | Select when speed >25 Mbps is needed and ambient temperature remains ≤105°C. |
Compared with SI8621ED-B-IS and ISO7721DR, ADUM3201CRZ-RL7 uniquely combines 125°C operation, guaranteed DC correctness, and enhanced system-level ESD robustness - making it optimal for automotive battery monitors and industrial motor drives where thermal stability and EMC resilience are non-negotiable.
Availability
ADUM3201CRZ-RL7 is available at Aetrix Electronics and suitable for industrial motor control, automotive battery management, and isolated data acquisition systems requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for ADUM3201CRZ-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, serving industrial, automotive, communications, and healthcare markets.
The ADuM3200/ADuM3201 family was designed specifically for cost-sensitive, high-reliability isolation in size-constrained industrial and automotive systems - emphasizing enhanced ESD robustness, wide temperature operation, and seamless voltage translation.
FAQ
What is the maximum data rate supported by ADUM3201CRZ-RL7?
The ADUM3201CRZ-RL7 supports a maximum data rate of 25 Mbps in NRZ format, verified across all operating conditions including 125°C ambient and mixed 3.3 V/5 V supply configurations. This enables full-speed SPI communication and high-bandwidth sensor data transfer without signal degradation.
Does ADUM3201CRZ-RL7 require external components for basic operation?
No, ADUM3201CRZ-RL7 requires only two 0.1 µF ceramic decoupling capacitors - one between VDD1 and GND1, and another between VDD2 and GND2 - placed within 10 mm of their respective pins. No external drivers, level shifters, or refresh circuitry is needed due to its integrated iCoupler architecture.
Can ADUM3201CRZ-RL7 be used in automotive applications?
Yes, ADUM3201CRZ-RL7 is qualified for automotive applications per AEC-Q100 (Grade 1, −40°C to +125°C) and carries safety certifications including IEC/EN/CSA 62368-1 and DIN EN IEC 60747-17 - making it suitable for battery monitoring, onboard chargers, and EV powertrain control units.
How does ADUM3201CRZ-RL7 handle DC or low-frequency signals?
ADUM3201CRZ-RL7 maintains DC correctness via on-chip refresh circuitry that periodically samples and retransmits static logic states, ensuring indefinite retention of HIGH or LOW levels without glitches - a critical feature for control signals like enable/disable or fault flags in safety-critical systems.
What safety certifications apply to ADUM3201CRZ-RL7?
ADUM3201CRZ-RL7 is certified to UL 1577 (2500 VRMS, 1 min), DIN EN IEC 60747-17 (VIORM = 560 VPEAK, reinforced insulation), IEC/EN/CSA 62368-1, and IEC/CSA 61010-1 - satisfying regulatory requirements for industrial equipment, medical auxiliary circuits, and automotive subsystems.
ADUM3201CRZ-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:
- 2
- Inputs - Side 1/Side 2:
- 1/1
- Channel Type:
- Unidirectional
- Voltage - Isolation:
- 2500Vrms
- Common Mode Transient Immunity (Min):
- 25kV/µs
- Data Rate:
- 25Mbps
- Propagation Delay tpLH / tpHL (Max):
- 45ns, 45ns
- Pulse Width Distortion (Max):
- 3ns
- Rise / Fall Time (Typ):
- 2.5ns, 2.5ns
- Voltage - Supply:
- 3V ~ 5.5V
- Grade:
- -
- Qualification:
- -
- Operating Temperature:
- -40°C ~ 105°C
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
ADUM3201CRZ-RL7 FAQ
1.How can I place an order for ADUM3201CRZ-RL7 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADUM3201CRZ-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 ADUM3201CRZ-RL7 reliable?
The price and inventory of ADUM3201CRZ-RL7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADUM3201CRZ-RL7 is usually 5 days.
3.What payment methods are accepted for ADUM3201CRZ-RL7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADUM3201CRZ-RL7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADUM3201CRZ-RL7?
ADUM3201CRZ-RL7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADUM3201CRZ-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 ADUM3201CRZ-RL7?
For technical support, including ADUM3201CRZ-RL7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADUM3201CRZ-RL7 requirements.
6.How does Aetrix verify that ADUM3201CRZ-RL7 is sourced from the original manufacturer or authorized distributors?
All ADUM3201CRZ-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 ADUM3201CRZ-RL7 meets industry standards.
7.What is the process for return or replacement of ADUM3201CRZ-RL7?
All ADUM3201CRZ-RL7 units undergo pre-shipment inspection (PSI). If there is an issue with ADUM3201CRZ-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 ADUM3201CRZ-RL7 part is unused and in its original packaging.
Return procedure for ADUM3201CRZ-RL7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ADUM3201CRZ-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
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…
