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Analog Devices Inc. ADUM1200BR
- Part No.:
- ADUM1200BR
- Manufacturer:
- Analog Devices Inc.
- Category:
- Digital Isolators
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
ADUM1200BR.pdf
- Description:
- DGTL ISO 2500VRMS 2CH GP 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,041
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Product details
Overview
ADUM1200BR 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 3 V/5 V level translation, operates up to 125°C, delivers 10 Mbps data rate with ≤3 ns pulse width distortion, and is used in SPI isolation, RS-485 transceiver interfaces, and battery monitor systems in hybrid electric vehicles.
For engineers reviewing the ADUM1200BR datasheet, ADUM1200BR pinout, ADUM1200BR application, or ADUM1200BR equivalent, this page provides verified specifications, SOIC-8 package mapping, channel-to-channel timing matching data, safety certifications (UL 1577, VDE 0884-17), and validated alternative options for industrial and automotive signal isolation designs.
Technical Context
The ADUM1200BR 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→B and B→A) with independent supply domains (VDD1/VDD2), enabling mixed-voltage operation (e.g., 5 V/3 V). Timing performance includes 20–55 ns propagation delay, ≤3 ns pulse width distortion, and ≤22 ns channel-to-channel skew under 105°C conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Isolation Rating | 2500 VRMS for 1 minute per UL 1577; VIORM = 560 VPEAK per VDE 0884-17 - enables reinforced insulation in industrial PLCs and EV battery management. |
| Max Data Rate | 10 Mbps (guaranteed with ≤3 ns pulse width distortion) - supports high-speed SPI clocking and real-time sensor feedback loops. |
| Supply Voltage Range | 2.7 V to 5.5 V on both sides - allows direct interfacing with 3.3 V microcontrollers and 5 V peripherals without level shifters. |
| Power Consumption | 4.3 mA per side at 10 Mbps (5 V operation) - reduces thermal load in dense PCB layouts versus optocouplers. |
| Common-Mode Transient Immunity | >25 kV/µs - maintains signal integrity in noisy motor drive environments with fast-switching IGBTs. |
| Operating Temperature | −40°C to +125°C - qualified for under-hood automotive applications including battery monitors and inverters. |
| Propagation Delay Skew | ≤22 ns (codirectional) - ensures deterministic timing alignment between isolated control signals in dual PWM gate drivers. |
Pinout & Package
Narrow-body RoHS-compliant SOIC-8 package (5.3 mm × 6.2 mm, 1.75 mm height), surface-mount, with creepage/clearance ≥5.5 mm per IEC 62368-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (VDD1) | Primary-side power supply | Supplies power to input-side logic and transformer driver; accepts 2.7–5.5 V. |
| 2 (GND1) | Primary-side ground reference | Return path for VDD1; must be separated from GND2 by isolation barrier. |
| 3 (INA) | Channel A input | Accepts CMOS-level signal from MCU GPIO or peripheral; threshold at 0.3×/0.7× VDD1. |
| 4 (INB) | Channel B input | Independent input for second isolated path; supports bidirectional configuration when paired with outputs. |
| 5 (GND2) | Secondary-side ground reference | Return path for VDD2; galvanically isolated from GND1. |
| 6 (VDD2) | Secondary-side power supply | Supplies output-side logic and receiver; independent voltage domain enables level translation. |
| 7 (OUTA) | Channel A output | CMOS-compatible output referenced to VDD2; drives loads up to 4 mA. |
| 8 (OUTB) | Channel B output | Second isolated output; matches OUTA timing within ≤22 ns skew for synchronized control. |
Key Features
| Feature | Design Value |
|---|---|
| iCoupler® transformer isolation | Replaces optocouplers with monolithic silicon transformers - eliminates CTR degradation, lifetime limits, and nonlinear transfer functions. |
| Patented refresh circuit | Maintains DC-correct output state during static input or power-up/power-down - no external watchdog or refresh logic required. |
| 3 V/5 V level translation | Enables interoperability between 3.3 V controllers and 5 V fieldbus transceivers without discrete level shifters or resistors. |
| High CMTI <25 kV/µs | Prevents false triggering in high-dV/dt environments like motor drives and inverters - meets IEC 61800-3 immunity requirements. |
| AEC-Q100 Grade 1 qualification | Validated for automotive use up to 125°C ambient - suitable for battery monitoring and onboard charger control units. |
Applications
| SPI Interface Isolation | RS-485 Transceiver Isolation |
|---|---|
Use Scenario: Isolating SPI bus between MCU and isolated ADC/DAC in industrial data acquisition systems. IC Role / Device Role / Timing Role: ADUM1200BR provides two independent unidirectional channels - one for SCLK/MOSI, one for MISO - preserving full-duplex timing integrity. Use Value: Enables 10 Mbps SPI clocking with ≤3 ns pulse width distortion, ensuring accurate sampling window alignment and reducing setup/hold margin overhead. |
Use Scenario: Galvanic isolation of RS-485 differential transceivers in factory automation networks exposed to ground potential differences. IC Role / Device Role / Timing Role: ADUM1200BR isolates DE/RE control lines and RX/TX data paths between UART and transceiver ICs. Use Value: Supports 10 Mbps data rates while maintaining >25 kV/µs common-mode transient immunity - prevents communication dropouts during ESD or lightning-induced surges. |
| Battery Monitor Systems | Hybrid Electric Vehicle Motor Drives |
Use Scenario: Signal isolation in high-voltage battery packs (400–800 V) where cell voltage sensing ICs communicate with central BMS controller. IC Role / Device Role / Timing Role: ADUM1200BR isolates UART or SPI links from isolated analog front-ends, operating at 3.3 V on BMS side and 5 V on sensor side. Use Value: Dual-channel design reduces component count vs. two single-channel isolators; AEC-Q100 qualification ensures reliability over vehicle lifetime. |
Use Scenario: Gate driver signal isolation in inverter modules controlling traction motors, where MCU PWM outputs must be safely referenced to high-side IGBT emitters. IC Role / Device Role / Timing Role: ADUM1200BR delivers matched propagation delays (<22 ns skew) between complementary PWM channels to prevent shoot-through. Use Value: Tight channel-to-channel matching and low pulse width distortion preserve dead-time accuracy - critical for inverter efficiency and IGBT protection. |
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 |
|---|---|---|---|
| SI8620BB-B-IS | Capacitive isolation; 10 Mbps max; 2.5–5.5 V supply; 2.5 kV RMS rating | Lacks AEC-Q100 qualification; lower isolation rating than ADUM1200BR's 2.5 kV RMS | Preferred for cost-sensitive industrial controls where automotive qualification is not required. |
| ISO7220CDR | Capacitive isolation; 10 Mbps max; 3.3/5 V compatible; 2.5 kV RMS rating; no refresh circuit | No built-in DC correctness refresh - requires external periodic toggling or watchdog for static signals | Used where TI ecosystem integration is prioritized and system-level refresh can be implemented in firmware. |
Compared with SI8620BB-B-IS and ISO7220CDR, the ADUM1200BR offers higher safety certification (VDE 0884-17), guaranteed DC correctness without software intervention, and proven 125°C operation - making it the preferred choice for automotive battery monitoring and high-reliability industrial inverters.
Availability
ADUM1200BR is available at Aetrix Electronics and suitable for SPI interface isolation, RS-485 transceiver isolation, and battery monitor systems requiring stable component supply across automotive and industrial production cycles.
Supply support for ADUM1200BR 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 ADUM1200BR belongs to the iCoupler® digital isolator product line, designed specifically to replace optocouplers with superior timing accuracy, lower power, and extended temperature reliability in safety-critical isolation applications.
FAQ
What is the maximum guaranteed data rate for ADUM1200BR with ≤3 ns pulse width distortion?
The ADUM1200BR guarantees ≤3 ns pulse width distortion up to 10 Mbps under all operating conditions specified in the datasheet (Rev. L, Table 1 and Table 2). This rating applies across the full temperature range (−40°C to +105°C) and both 3 V and 5 V supply configurations. The ADUM1200BR achieves this using optimized transformer driver/receiver circuits and precise process-matched timing paths - distinct from the slower AR-grade (1 Mbps) or higher-speed CR-grade (25 Mbps) variants in the same family.
Does ADUM1200BR support bidirectional communication on each channel?
No - the ADUM1200BR implements two unidirectional channels: Channel A (INA → OUTA) and Channel B (INB → OUTB). Bidirectional functionality requires external logic or pairing with an ADUM1201BR (which has cross-connected channels). The ADUM1200BR's fixed directionality simplifies timing analysis and ensures consistent propagation delay behavior, making it ideal for dedicated control/data separation in SPI or UART isolation.
Can ADUM1200BR operate with different supply voltages on each side (e.g., 5 V on VDD1 and 3.3 V on VDD2)?
Yes - the ADUM1200BR supports mixed-supply operation: 5 V/3 V (VDD1 = 4.5–5.5 V, VDD2 = 2.7–3.6 V) and 3 V/5 V (VDD1 = 2.7–3.6 V, VDD2 = 4.5–5.5 V). This enables level translation without external components. Electrical characteristics such as supply current and propagation delay are fully specified for both configurations in Tables 3 and 4 of the ADUM1200/ADUM1201 datasheet Rev. L.
What safety certifications does ADUM1200BR hold?
The ADUM1200BR is certified to UL 1577 (2500 VRMS for 1 minute), DIN EN IEC 60747-17 (VDE 0884-17) with VIORM = 560 VPEAK, IEC/EN/CSA 62368-1, IEC/CSA 61010-1, and CQC GB4943.1. These approvals validate its suitability for reinforced insulation in industrial equipment, medical auxiliary circuits, and automotive battery systems per ISO 26262 ASIL-B functional safety requirements.
Is ADUM1200BR pin-compatible with other devices in the ADUM120x family?
Yes - all ADUM1200/ADUM1201 variants (AR, BR, CR, W-grade) share identical SOIC-8 pinout and footprint. The ADUM1200BR is functionally and physically interchangeable with ADUM1200AR and ADUM1200CR, differing only in speed grade and timing specifications. No PCB layout change is required when upgrading or downgrading within the ADUM1200 series.
ADUM1200BR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- iCoupler®
- 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:
- 2.7V ~ 5.5V
- Grade:
- -
- Qualification:
- -
- Operating Temperature:
- -40°C ~ 105°C
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
ADUM1200BR FAQ
1.How can I place an order for ADUM1200BR through Aetrix?
Please submit a Request for Quotation (RFQ) for ADUM1200BR 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 ADUM1200BR reliable?
The price and inventory of ADUM1200BR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADUM1200BR is usually 5 days.
3.What payment methods are accepted for ADUM1200BR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADUM1200BR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADUM1200BR?
ADUM1200BR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADUM1200BR 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 ADUM1200BR?
For technical support, including ADUM1200BR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADUM1200BR requirements.
6.How does Aetrix verify that ADUM1200BR is sourced from the original manufacturer or authorized distributors?
All ADUM1200BR 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 ADUM1200BR meets industry standards.
7.What is the process for return or replacement of ADUM1200BR?
All ADUM1200BR units undergo pre-shipment inspection (PSI). If there is an issue with ADUM1200BR, 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 ADUM1200BR part is unused and in its original packaging.
Return procedure for ADUM1200BR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ADUM1200BR Tags
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ISO6721BDR
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SI8710AC-B-ISR
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ISO7721DR
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SI8710CC-B-ISR
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ISO6741FQDWRQ1
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ISO7762FDBQR
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ISO7741DWR
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ISO7741FDWR
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