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Analog Devices Inc. ADUM1200WSRZ
- Part No.:
- ADUM1200WSRZ
- Manufacturer:
- Analog Devices Inc.
- Category:
- Digital Isolators
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
ADUM1200WSRZ.pdf
- Description:
- DGTL ISO 2500VRMS 2CH GP 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,151
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Product details
Overview
ADUM1200WSRZ from Analog Devices is a dual-channel, automotive-grade digital isolator based on iCoupler® transformer technology, providing galvanic isolation with 2500 VRMS withstand voltage, 25 Mbps data rate (URZ grade), and operation up to 125°C. It supports bidirectional communication, 3 V/5 V level translation across the isolation barrier, and delivers <3 ns pulse width distortion for precision timing-critical interfaces like SPI and RS-485.
For engineers reviewing the ADUM1200WSRZ datasheet, ADUM1200WSRZ pinout, ADUM1200WSRZ application, or ADUM1200WSRZ equivalent, this page provides verified specifications, automotive-qualified thermal performance, channel-to-channel matching data, safety certifications (UL, VDE, IEC), and real-world isolation use cases in battery monitoring and motor drive systems.
Technical Context
The ADUM1200WSRZ implements two independent unidirectional isolation channels using monolithic air-core transformers and integrated CMOS interface circuitry-eliminating LED/photodiode aging and CTR drift inherent in optocouplers. Its patented refresh circuit ensures DC correctness during signal inactivity and power transitions.
It operates with asymmetric supply voltages (2.7–5.5 V per side), enabling native 3 V/5 V level translation without external logic. The URZ speed grade guarantees 25 Mbps NRZ data rate with ≤3 ns pulse width distortion and ≤15 ns channel-to-channel matching at 125°C ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Isolation Withstand Voltage | 2500 VRMS for 1 minute - meets reinforced insulation requirements for industrial and automotive safety standards. |
| Maximum Data Rate | 25 Mbps (NRZ) - supports high-speed SPI clocking and isolated UART/RS-485 transceiver control at full rate. |
| Pulse Width Distortion | ≤3 ns - preserves duty cycle integrity for PWM and timing-critical serial protocols. |
| Channel-to-Channel Matching | ≤15 ns - enables precise synchronization of dual-signal paths (e.g., SPI SCLK + MOSI). |
| Operating Temperature | −40°C to +125°C - qualified per AEC-Q100 Grade 0 for under-hood automotive applications. |
| Common-Mode Transient Immunity | >25 kV/µs - maintains signal integrity in noisy motor drive and battery pack environments. |
| Supply Voltage Range | 2.7 V to 5.5 V per side - allows direct interfacing with 3.3 V microcontrollers and 5 V peripherals. |
Pinout & Package
Narrow-body SOIC-8 package (5.3 mm × 6.2 mm, 1.55 mm height), RoHS-compliant, creepage/clearance ≥5.5 mm, rated VIORM = 560 VPEAK per DIN EN IEC 60747-17.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD1 | Primary-side power supply | Supplies input-side logic and isolation transmitter; accepts 2.7–5.5 V independently of VDD2. |
| GND1 | Primary-side ground reference | Return path for VDD1; must be separated from GND2 to maintain galvanic isolation. |
| INA | Input A (primary side) | Unidirectional input driving Channel A output (VOA); compatible with CMOS logic thresholds. |
| INB | Input B (primary side) | Unidirectional input driving Channel B output (VOB); electrically isolated from INA. |
| VDD2 | Secondary-side power supply | Supplies output-side logic and isolation receiver; independent voltage domain from VDD1. |
| GND2 | Secondary-side ground reference | Return path for VDD2; galvanically isolated from GND1; defines secondary logic reference. |
| VOA | Output A (secondary side) | Isolated replica of INA signal; drives 3.3 V or 5 V loads with rail-to-rail swing. |
| VOB | Output B (secondary side) | Isolated replica of INB signal; matched timing to VOA within ≤15 ns over temperature. |
Key Features
| Feature | Design Value |
|---|---|
| iCoupler® transformer isolation | Eliminates optocoupler aging, CTR variation, and temperature-dependent nonlinearities-enabling stable 15+ year lifetime in automotive systems. |
| Patented DC-correct refresh circuit | Maintains accurate logic state during idle periods and power-up/power-down-no external watchdog or refresh signals required. |
| Asymmetric supply support | Enables seamless 3.3 V MCU ↔ 5 V sensor or actuator interfacing without level-shifter ICs or resistive dividers. |
| AEC-Q100 Grade 0 qualification | Validated for operation at 125°C ambient with full electrical specs guaranteed-suitable for battery management and traction inverter control. |
| High CMTI (>25 kV/µs) | Rejects fast transients induced by switching power devices (e.g., SiC MOSFETs), preventing false triggering in motor gate drivers. |
Applications
| Battery Management System (BMS) | SPI Isolation for Data Converters |
|---|---|
Use Scenario: Isolating cell voltage and temperature measurement data from high-voltage battery packs (up to 1000 V) to low-voltage MCU domains. IC Role / Device Role / Timing Role: ADUM1200WSRZ provides dual-channel isolation for ADC serial clock (SCLK) and data (SDO), preserving timing integrity at 25 Mbps while blocking common-mode noise. Use Value: Enables safe, high-resolution monitoring without compromising sampling rate or introducing jitter-induced measurement error. |
Use Scenario: Isolating SPI bus between an industrial PLC's 3.3 V controller and a 5 V isolated ADC (e.g., AD7403) in motor current sensing. IC Role / Device Role / Timing Role: ADUM1200WSRZ bridges voltage domains and isolates fault currents, with <3 ns pulse width distortion ensuring accurate 16-bit conversion timing. Use Value: Eliminates ground loops and prevents latch-up during overcurrent events while maintaining sub-LSB accuracy. |
| Automotive RS-485 Transceiver Isolation | Inverter Gate Driver Interface |
Use Scenario: Isolating CAN FD or RS-485 communication lines in hybrid electric vehicle battery chargers and DC-DC converters. IC Role / Device Role / Timing Role: ADUM1200WSRZ isolates differential transceiver control signals (DE/RE) and data lines, supporting 25 Mbps for fast diagnostics and firmware updates. Use Value: Meets ISO 11898-2 EMI immunity requirements and prevents bus faults from propagating to the host controller. |
Use Scenario: Isolating PWM signals from MCU to high-side/low-side gate drivers in 400 V traction inverters. IC Role / Device Role / Timing Role: ADUM1200WSRZ delivers matched propagation delay (<15 ns skew) between complementary PWM channels to prevent shoot-through in IGBT/SiC half-bridges. Use Value: Guarantees precise dead-time control at 10–20 kHz switching frequencies without added timing margin. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel digital isolator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SI8620ED-B-IS | Capacitive isolation; 25 Mbps; 5000 VRMS rating; 125°C operation; no refresh circuit. | Lacks built-in DC correctness assurance-requires external periodic toggling or protocol-level keep-alive for long-idle links. | Preferred where higher isolation voltage is mandatory and system-level refresh can be implemented. |
| ISO7720QDWR | Capacitive isolation; 100 Mbps; 5000 VRMS; AEC-Q100 Grade 1 (−40°C to +125°C); no refresh circuit. | Higher speed but wider SOIC-8 package (6.4 mm); lacks guaranteed DC correctness at 125°C without external supervision. | Selected when >25 Mbps bandwidth is required and board space permits larger footprint. |
Compared with SI8620ED-B-IS and ISO7720QDWR, the ADUM1200WSRZ uniquely combines automotive-grade 125°C operation, transformer-based reliability, and hardware-enforced DC correctness-making it optimal for safety-critical, long-dwell automotive isolation where protocol-level refresh is impractical.
Availability
ADUM1200WSRZ is available at Aetrix Electronics and suitable for battery management systems, motor drive controls, and isolated SPI/RS-485 interfaces requiring stable component supply across automotive production lifecycles.
Supply support for ADUM1200WSRZ 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 ADUM1200WSRZ belongs to the iCoupler® digital isolator product line, engineered specifically for robust, low-power, high-reliability galvanic isolation in harsh automotive and industrial environments.
FAQ
What is the maximum guaranteed data rate for ADUM1200WSRZ at 125°C?
The ADUM1200WSRZ (URZ grade) guarantees 25 Mbps NRZ data rate with ≤3 ns pulse width distortion and ≤15 ns channel-to-channel matching across the full −40°C to +125°C operating range. This is validated per AEC-Q100 stress testing and reflected in Table 4 (5 V, 125°C operation) of the Rev. L datasheet.
Does ADUM1200WSRZ support bidirectional signal flow on each channel?
No-ADUM1200WSRZ implements two unidirectional channels: INA→VOA and INB→VOB. Bidirectional communication requires external routing (e.g., pairing with ADUM1201WSRZ for complementary directionality) or protocol-level handshaking. The device does not include internal direction-control logic.
What safety certifications apply to ADUM1200WSRZ?
ADUM1200WSRZ is certified to UL 1577 (2500 VRMS, 1 min), DIN EN IEC 60747-17 (VDE 0884-17, VIORM = 560 VPEAK), IEC/EN/CSA 62368-1, IEC/CSA 61010-1, and CQC GB4943.1. All certifications are explicitly listed in the Regulatory Information section of the datasheet.
Can ADUM1200WSRZ operate with 3.3 V on one side and 5 V on the other?
Yes-ADUM1200WSRZ supports mixed-supply operation: VDD1 = 3.3 V / VDD2 = 5 V or VDD1 = 5 V / VDD2 = 3.3 V. Electrical characteristics for these configurations are fully specified in Table 3 (Mixed 5 V/3 V or 3 V/5 V, 105°C Operation) and confirmed for automotive grades in application notes.
How does the refresh feature in ADUM1200WSRZ ensure DC correctness?
The ADUM1200WSRZ integrates a patented on-chip refresh circuit that automatically detects static input states and injects controlled pulses across the isolation barrier to maintain output logic level-ensuring correct DC output during signal inactivity, power-up, and brownout conditions without external intervention.
ADUM1200WSRZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- 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:
- 2
- Inputs - Side 1/Side 2:
- 2/0
- Channel Type:
- Unidirectional
- Voltage - Isolation:
- 2500Vrms
- Common Mode Transient Immunity (Min):
- 25kV/µs
- Data Rate:
- 1Mbps
- Propagation Delay tpLH / tpHL (Max):
- 150ns, 150ns
- Pulse Width Distortion (Max):
- 40ns
- Rise / Fall Time (Typ):
- 2.5ns, 2.5ns
- Voltage - Supply:
- 3V ~ 5.5V
- Grade:
- Automotive
- Qualification:
- -
- Operating Temperature:
- -40°C ~ 125°C
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
ADUM1200WSRZ FAQ
1.How can I place an order for ADUM1200WSRZ through Aetrix?
Please submit a Request for Quotation (RFQ) for ADUM1200WSRZ 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 ADUM1200WSRZ reliable?
The price and inventory of ADUM1200WSRZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADUM1200WSRZ is usually 5 days.
3.What payment methods are accepted for ADUM1200WSRZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADUM1200WSRZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADUM1200WSRZ?
ADUM1200WSRZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADUM1200WSRZ 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 ADUM1200WSRZ?
For technical support, including ADUM1200WSRZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADUM1200WSRZ requirements.
6.How does Aetrix verify that ADUM1200WSRZ is sourced from the original manufacturer or authorized distributors?
All ADUM1200WSRZ 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 ADUM1200WSRZ meets industry standards.
7.What is the process for return or replacement of ADUM1200WSRZ?
All ADUM1200WSRZ units undergo pre-shipment inspection (PSI). If there is an issue with ADUM1200WSRZ, 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 ADUM1200WSRZ part is unused and in its original packaging.
Return procedure for ADUM1200WSRZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ADUM1200WSRZ 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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