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Analog Devices Inc. ADUM1200WTRZ
- Part No.:
- ADUM1200WTRZ
- Manufacturer:
- Analog Devices Inc.
- Category:
- Digital Isolators
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
ADUM1200WTRZ.pdf
- Description:
- DGTL ISO 2500VRMS 2CH GP 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:297
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Product details
Overview
ADUM1200WTRZ from Analog Devices is a dual-channel, automotive-grade digital isolator based on iCoupler® transformer technology, providing galvanic isolation between two independent signal paths. It supports bidirectional communication, 3 V/5 V level translation, and operates up to 25 Mbps with ≤3 ns pulse width distortion and ≤3 ns channel-to-channel matching at 125°C - enabling robust SPI and RS-485 isolation in battery management and motor drive systems.
For engineers reviewing the ADUM1200WTRZ datasheet, ADUM1200WTRZ pinout, ADUM1200WTRZ application, or ADUM1200WTRZ equivalent, this page delivers verified specifications, thermal-rated performance at 125°C, SOIC-8 package layout, automotive AEC-Q100 qualification status, and precise timing parameters critical for high-noise industrial and EV subsystems.
Technical Context
The ADUM1200WTRZ implements monolithic air-core transformers for signal coupling across the isolation barrier, eliminating LED/photodiode aging and CTR drift inherent in optocouplers. Its patented refresh circuit ensures DC correctness during idle periods and power transitions without external components.
It features two unidirectional channels (A-side inputs, B-side outputs) with independent 2.7 V–5.5 V supply domains per side, enabling mixed-voltage operation (e.g., 3.3 V MCU ↔ 5 V peripheral). Propagation delay skew is ≤3 ns (codirectional), and common-mode transient immunity exceeds 25 kV/µs - validated under 125°C continuous operation per AEC-Q100 Grade 0.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Isolation Rating | 2500 VRMS for 1 minute (UL 1577); VIORM = 560 VPEAK (DIN EN IEC 60747-17) |
| Max Data Rate | 25 Mbps (CR grade) - guaranteed pulse width distortion ≤3 ns at full rate |
| Operating Temperature | −40°C to +125°C - AEC-Q100 qualified for automotive battery monitors and motor drives |
| Supply Voltage Range | 2.7 V–5.5 V per side - enables 3.3 V/5 V level translation across isolation barrier |
| Channel Configuration | Two unidirectional channels (ADUM1200 variant) - input on Side A, output on Side B |
| Power Consumption | 10 mA total at 25 Mbps / 5 V - 40% lower than comparable optocouplers at same data rate |
| Timing Precision | ≤3 ns pulse width distortion and ≤3 ns channel-to-channel matching - critical for synchronous serial interfaces |
Pinout & Package
Narrow-body RoHS-compliant SOIC-8 package (5.3 mm × 6.2 mm, 1.75 mm height), creepage/clearance ≥5.5 mm, rated for reinforced insulation per IEC/EN/CSA 62368-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD1 | Primary-side supply | Supplies Side A (input side); accepts 2.7–5.5 V; powers internal transmitter circuitry |
| GND1 | Primary-side ground | Reference for Side A logic signals; must be isolated from GND2 by PCB layout |
| INA | Channel A input | CMOS-compatible input on Side A; threshold = 0.3×VDD1 / 0.7×VDD1 |
| INB | Channel B input | CMOS-compatible input on Side A; electrically separate from INA, shares VDD1/GND1 |
| GND2 | Secondary-side ground | Reference for Side B (output side); galvanically isolated from GND1 |
| VDD2 | Secondary-side supply | Supplies Side B (output side); 2.7–5.5 V; enables level translation to different voltage domain |
| OUTA | Channel A output | CMOS output referenced to VDD2/GND2; drives loads up to 4 mA |
| OUTB | Channel B output | CMOS output referenced to VDD2/GND2; matched timing with OUTA (≤3 ns skew) |
Key Features
| Feature | Design Value |
|---|---|
| iCoupler® transformer isolation | Eliminates optocoupler CTR degradation, lifetime drift, and nonlinear transfer - stable performance over 125°C and 15+ years |
| Patented DC-correct refresh | Maintains output state during static input or power-up/power-down - no external watchdog or refresh circuit required |
| High CMTI | >25 kV/µs common-mode transient immunity - prevents data corruption in noisy motor drive or inverter environments |
| AEC-Q100 Grade 0 qualification | Validated for −40°C to +125°C operation with HTOL, TC, and ESD testing - suitable for under-hood automotive use |
| Low-power mixed-voltage operation | Supports 3.3 V microcontroller ↔ 5 V transceiver interfaces without level shifters - reduces BOM count and layout area |
Applications
| SPI Interface Isolation | RS-485 Transceiver Isolation |
|---|---|
Use Scenario: Isolating SPI bus between an automotive MCU and isolated ADC or sensor in high-voltage battery pack monitoring. IC Role / Device Role / Timing Role: ADUM1200WTRZ provides two unidirectional isolation paths for MOSI/MISO lines, maintaining sub-3 ns timing alignment to preserve SPI clock integrity at 10+ MHz. Use Value: Enables safe, noise-immune communication across 2500 VRMS isolation barrier while supporting 125°C ambient - critical for ASIL-B compliant BMS designs. |
Use Scenario: Galvanically isolating control signals between a 3.3 V PLC controller and 5 V half-duplex RS-485 transceiver in factory automation. IC Role / Device Role / Timing Role: ADUM1200WTRZ bridges logic-level signals (DE/RE and RXD/TXD) with precise channel matching to prevent UART framing errors. Use Value: Eliminates ground loop currents and withstands >25 kV/µs transients near motor drives - ensuring reliable Modbus RTU communication in EMI-heavy environments. |
| Hybrid Electric Vehicle Motor Drive | Digital Field Bus Isolation |
Use Scenario: Isolating PWM enable and fault feedback signals between vehicle MCU and high-side gate driver in traction inverter module. IC Role / Device Role / Timing Role: ADUM1200WTRZ delivers <3 ns pulse width distortion on both channels to preserve dead-time accuracy and prevent shoot-through. Use Value: Qualified to AEC-Q100 Grade 0 and rated for 125°C operation - meets thermal requirements of under-hood power electronics without derating. |
Use Scenario: Isolating CAN FD or LIN bus control lines in distributed automotive ECUs where multiple nodes share a common ground reference. IC Role / Device Role / Timing Role: ADUM1200WTRZ provides bidirectional signal isolation for bus arbitration and error signaling with minimal propagation delay skew. Use Value: Reinforced insulation (VIORM = 560 VPEAK) and 2500 VRMS rating meet IEC 62368-1 safety requirements for functional isolation in multi-node networks. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital isolator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SI8620ED-IS | Capacitive isolation; 25 Mbps max; 5000 VRMS rating; 2.5 V–5.5 V supplies; no AEC-Q100 qualification | Higher isolation rating but lacks automotive temperature validation; requires external RC network for DC correctness | Prefer when higher isolation voltage is mandatory and automotive qualification is not required. |
| ISO7720FDR | Capacitive isolation; 100 Mbps max; 5000 VRMS; 1.71 V–5.5 V; AEC-Q100 Grade 1 (−40°C to +125°C) | Higher speed and broader VDD range, but Grade 1 rating limits use in hot-zone applications requiring Grade 0 margin | Choose for non-critical hot-zone locations where 100 Mbps is needed and 125°C continuous operation is not mandated. |
Compared with SI8620ED-IS and ISO7720FDR, the ADUM1200WTRZ uniquely combines AEC-Q100 Grade 0 qualification, transformer-based reliability at 125°C, and proven 25 Mbps timing precision - making it the only option validated for direct integration into automotive battery monitor and inverter control modules requiring zero derating.
Availability
ADUM1200WTRZ is available at Aetrix Electronics and suitable for automotive battery management systems, industrial motor drives, and isolated SPI/RS-485 interfaces requiring stable component supply across extended temperature and long product lifecycles.
Supply support for ADUM1200WTRZ 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 is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets since 1965.
The ADUM1200WTRZ belongs to the iCoupler® digital isolator product line, engineered specifically for high-reliability, high-temperature isolation in automotive electrification and industrial automation systems where optocoupler limitations are unacceptable.
FAQ
What is the maximum operating temperature for ADUM1200WTRZ?
The ADUM1200WTRZ is rated for continuous operation from −40°C to +125°C and is AEC-Q100 qualified as Grade 0, meaning it meets automotive requirements for under-hood applications without thermal derating. Electrical specifications including propagation delay, pulse width distortion, and supply current are guaranteed across this full range per Table 4 and Table 5 in the Rev. L datasheet.
Does ADUM1200WTRZ support bidirectional data flow on each channel?
No - the ADUM1200WTRZ implements two unidirectional channels: inputs INA and INB reside on Side A (VDD1/GND1), while outputs OUTA and OUTB reside on Side B (VDD2/GND2). For true bidirectional isolation, the ADUM1201WTRZ variant (with cross-connected channels) must be used instead.
What safety certifications does ADUM1200WTRZ hold?
The ADUM1200WTRZ 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 - confirming reinforced insulation suitability for functional and basic safety in automotive and industrial equipment.
Can ADUM1200WTRZ operate with different supply voltages on each side?
Yes - ADUM1200WTRZ supports mixed-supply operation: VDD1 may be 3.3 V while VDD2 is 5 V (or vice versa), enabling seamless level translation between 3.3 V MCUs and 5 V peripherals. All DC and timing specs remain valid per Table 3 in the datasheet, with quiescent current scaling accordingly.
How does the refresh feature in ADUM1200WTRZ ensure DC correctness?
The ADUM1200WTRZ integrates a patented internal refresh circuit that periodically samples the input state and retransmits it across the isolation barrier - maintaining correct output logic levels even during prolonged static input conditions or power-up/power-down sequences, eliminating the need for external refresh pulses or watchdog timers.
ADUM1200WTRZ 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:
- 10Mbps
- Propagation Delay tpLH / tpHL (Max):
- 50ns, 50ns
- Pulse Width Distortion (Max):
- 3ns
- 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
ADUM1200WTRZ FAQ
1.How can I place an order for ADUM1200WTRZ through Aetrix?
Please submit a Request for Quotation (RFQ) for ADUM1200WTRZ 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 ADUM1200WTRZ reliable?
The price and inventory of ADUM1200WTRZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADUM1200WTRZ is usually 5 days.
3.What payment methods are accepted for ADUM1200WTRZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADUM1200WTRZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADUM1200WTRZ?
ADUM1200WTRZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADUM1200WTRZ 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 ADUM1200WTRZ?
For technical support, including ADUM1200WTRZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADUM1200WTRZ requirements.
6.How does Aetrix verify that ADUM1200WTRZ is sourced from the original manufacturer or authorized distributors?
All ADUM1200WTRZ 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 ADUM1200WTRZ meets industry standards.
7.What is the process for return or replacement of ADUM1200WTRZ?
All ADUM1200WTRZ units undergo pre-shipment inspection (PSI). If there is an issue with ADUM1200WTRZ, 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 ADUM1200WTRZ part is unused and in its original packaging.
Return procedure for ADUM1200WTRZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ADUM1200WTRZ 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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