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Analog Devices Inc. ADUM6211ARSZ
- Part No.:
- ADUM6211ARSZ
- Manufacturer:
- Analog Devices Inc.
- Category:
- Digital Isolators
- Package:
- 20-SSOP (0.209", 5.30mm Width)
- Datasheet:
-
ADUM6211ARSZ.pdf
- Description:
- DGTL ISO 3750VRMS 2CH GP 20SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,127
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Product details
Overview
ADUM6211ARSZ from Analog Devices is a dual-channel digital isolator with integrated isoPower® dc-to-dc converter, providing galvanic isolation and regulated 3.3 V or 5.0 V isolated supply (up to 150 mW). It delivers 100 Mbps signal isolation, 25 kV/µs common-mode transient immunity, and operates across −40°C to +105°C in a 20-lead SSOP package with 5.3 mm creepage. It is used in isolated sensor interfaces and industrial PLCs where compact, self-powered isolation is required.
For engineers reviewing the ADUM6211ARSZ datasheet, ADUM6211ARSZ pinout, ADUM6211ARSZ application, or ADUM6211ARSZ equivalent, this page provides verified technical context, exact pin functions, real-world use cases, and validated alternative parts for SPI-isolated power delivery and data channel separation in safety-critical embedded systems.
Technical Context
The ADUM6211ARSZ implements iCoupler® chip-scale transformer technology for both signal isolation and magnetic power transfer, eliminating external isolated DC/DC converters. Its dual-channel architecture supports independent input/output logic domains with configurable directionality: Channel A is output-only (VOA), Channel B is input-only (VIB), enabling asymmetric bidirectional communication paths.
It integrates a pulse-width modulated (600 kHz) isolated dc-dc converter with soft-start, thermal shutdown (154°C), and programmable VISO via VSEL resistor network. The device meets reinforced insulation requirements per UL 1577 (3750 V rms), CSA 5A, and VDE V 0884-10 (VIORM = 849 V peak), supporting system-level safety compliance without external components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data Rate | 100 Mbps (NRZ) - supports high-speed SPI up to 15 MHz with timing margin |
| Isolated Supply Output | 3.3 V or 5.0 V selectable via VSEL - powers downstream isolated circuitry without auxiliary supply |
| Max Isolated Power | 150 mW at 5 V/5 V configuration - sufficient for two isolated logic channels and small peripherals |
| Common-Mode Immunity | >25 kV/µs - ensures robust operation in noisy industrial motor drive or power supply environments |
| Propagation Delay | 20 ns (C grade) - enables precise timing control in closed-loop feedback and gate drive applications |
| Package | 20-lead SSOP, 5.3 mm creepage - meets IEC 60664-1 reinforced insulation spacing for 300 V rms working voltage |
| Operating Temp | −40°C to +105°C - qualified for under-hood automotive and industrial control cabinet deployment |
Pinout & Package
ADUM6211ARSZ uses a 20-lead SSOP package (7.2 mm × 7.8 mm, 0.65 mm pitch) with input-side (pins 1–10) and output-side (pins 11–20) ground separation and 5.3 mm minimum creepage distance between sides.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD1 | Input-side logic supply | 3.135–5.5 V power for Side 1 digital circuits; independent of VDDP |
| GNDP (pins 2,5,6,10) | Input-side reference ground | Internally connected; must be tied to common low-noise input ground plane |
| VOA (pin 3) | Channel A output | Isolated logic output driven from Side 1; connects to slave device input on isolated side |
| VIB (pin 4) | Channel B input | Isolated logic input received from Side 2; drives master-side logic after isolation |
| PDIS (pin 8) | Power disable control | Active-high logic input disables isoPower converter to reduce quiescent current during standby |
| VDDP (pin 9) | Primary isoPower input | 3.135–5.5 V supply for integrated DC/DC converter; powers VISO and internal oscillator |
| GNDISO (pins 11,15,16,19) | Output-side reference ground | Internally connected; forms return path for VISO and isolated logic outputs |
| VISO (pin 12) | Isolated secondary supply | Regulated 3.3 V or 5.0 V output; powers VDD2 and external isolated loads up to 30 mA |
| VSEL (pin 13) | Voltage select reference | Configures VISO setpoint via resistor divider to internal 1.25 V reference; determines output voltage ratio |
| VOB (pin 17) | Channel B output | Isolated logic output driven from Side 1; complements VIB input directionality |
| VIA (pin 18) | Channel A input | Isolated logic input received from Side 2; complements VOA output directionality |
| VDD2 (pin 20) | Output-side logic supply | 3.135–5.5 V supply for Side 2 digital circuits; may be powered by VISO or external source |
Key Features
| Feature | Design Value |
|---|---|
| Integrated isoPower DC/DC converter | Eliminates need for external isolated power supply, reducing BOM count and PCB area in space-constrained designs |
| Programmable VISO output | VSEL pin enables precise 3.3 V or 5.0 V regulation without trimming resistors or external LDOs |
| Asymmetric channel configuration | VOA/VIA and VOB/VIB pin assignments support master-slave SPI isolation with dedicated transmit/receive paths |
| Reinforced insulation certification | UL 1577 (3750 V rms), VDE V 0884-10 (VIORM = 849 V peak), and CSA 5A approvals enable direct use in safety-critical systems |
| High CMTI & thermal robustness | 25 kV/µs common-mode transient immunity and 154°C thermal shutdown protect against EFT and overtemperature faults |
Applications
| Industrial PLC I/O Modules | SPI-Isolated Sensor Interfaces |
|---|---|
Use Scenario: Isolating digital I/O signals and powering isolated field-side logic in programmable logic controller backplanes. IC Role / Device Role / Timing Role: Dual-channel isolator providing signal integrity and local 3.3 V/5.0 V supply for remote I/O ASICs and level translators. Use Value: Enables single-chip isolation + power for 2-channel digital I/O, reducing component count versus discrete isolator + DC/DC solutions. | Use Scenario: Connecting precision analog sensors (e.g., current shunt monitors, RTDs) to microcontrollers across an isolation barrier. IC Role / Device Role / Timing Role: Isolating SPI clock/MOSI/MISO lines while powering the sensor-side ADC and signal conditioning circuitry. Use Value: Delivers synchronized, jitter-controlled clock isolation and stable 3.3 V supply to noise-sensitive sensor front-ends. |
| Isolated RS-232 Transceivers | Power Supply Gate Drive Bias |
Use Scenario: Providing galvanic isolation and local power for RS-232 line drivers/receivers in medical or industrial serial interfaces. IC Role / Device Role / Timing Role: Isolating TX/RX data paths and supplying regulated 5.0 V to the isolated-side transceiver IC. Use Value: Meets IEC 60601-1 creepage requirements while eliminating separate isolated bias supply for ±12 V RS-232 generation. | Use Scenario: Delivering isolated gate drive power and PWM signal isolation for IGBTs or SiC MOSFETs in AC/DC or motor drives. IC Role / Device Role / Timing Role: Transmitting high-speed PWM edges across isolation barrier while powering isolated gate driver ICs. Use Value: Supports <20 ns propagation delay and >25 kV/µs CMTI for reliable switching in high dv/dt power stages. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel isolated power and signal applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADUM6210ARSZ | Channel A: VIA input / VOA output; Channel B: VIB input / VOB output - symmetric bidirectional configuration | Better suited for full-duplex isolated UART or generic bidirectional data links | Select ADUM6210ARSZ when both channels require independent input/output capability on each side |
| ADUM6212ARSZ | Channel A: VOA/VIA outputs only; Channel B: VOB/VOB outputs only - dual-output configuration | Optimized for driving two isolated loads (e.g., dual gate drivers or dual ADC references) | Select ADUM6212ARSZ when isolated-side logic requires two independent output signals without return path |
Compared with ADUM6210ARSZ (symmetric I/O) and ADUM6212ARSZ (dual-output), ADUM6211ARSZ's asymmetric VOA/VIB pinout uniquely supports master-slave SPI isolation with minimal external routing, making it optimal for microcontroller-to-peripheral isolation where directionality is fixed and power must be delivered to the peripheral side.
Availability
ADUM6211ARSZ is available at Aetrix Electronics and suitable for industrial PLCs, isolated sensor interfaces, RS-232 transceivers, and power supply gate drive bias applications requiring stable component supply and long-term lifecycle support.
Supply support for ADUM6211ARSZ 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 semiconductor company specializing in high-performance analog, mixed-signal, and digital signal processing technologies for precision instrumentation, industrial automation, and communications.
The ADuM621x family was designed to integrate signal isolation and isolated power into a single package for compact, certified isolation in industrial and medical systems-replacing multi-component solutions with a single, safety-compliant IC.
FAQ
What is the maximum data rate supported by ADUM6211ARSZ?
ADUM6211ARSZ supports up to 100 Mbps (NRZ) data rate in its C-grade version, with typical propagation delay of 20 ns and pulse width distortion under 2.5 ns. This enables reliable SPI isolation at clock frequencies up to 15 MHz while maintaining timing margins for setup/hold compliance. The actual achievable rate depends on PCB layout, load capacitance, and operating temperature.
How is the isolated output voltage (VISO) configured on ADUM6211ARSZ?
ADUM6211ARSZ uses the VSEL pin to configure VISO via an external resistor divider between VISO and GNDISO, referencing an internal 1.25 V bandgap. With R1 = 10 kΩ and R2 = 16.9 kΩ, VISO is set to 3.3 V; with R2 = 30.9 kΩ, it is set to 5.0 V. The VISO output remains regulated across load currents up to 30 mA and input voltage variations from 4.5 V to 5.5 V.
Does ADUM6211ARSZ require external components for basic operation?
Yes, ADUM6211ARSZ requires external components for full functionality: a VSEL resistor network to set VISO voltage, 0.1 µF + 10 µF bypass capacitors on VISO for ripple suppression, and proper grounding of all GNDP and GNDISO pins. No external transformers or inductors are needed-the isoPower converter is fully integrated. Layout adherence to AN-0971 is critical for EMI compliance.
What safety certifications does ADUM6211ARSZ hold?
ADUM6211ARSZ is certified to UL 1577 (3750 V rms, 1 minute), CSA Component Acceptance Notice 5A, and VDE V 0884-10 (VIORM = 849 V peak, reinforced insulation). These approvals validate its suitability for end-equipment requiring reinforced isolation, including industrial controls and medical devices compliant with IEC 61010-1 and IEC 60601-1.
Can ADUM6211ARSZ power external circuitry beyond its own logic supplies?
Yes, ADUM6211ARSZ's VISO pin delivers up to 150 mW (30 mA at 5 V or 20 mA at 3.3 V) to external loads such as isolated ADCs, DACs, or gate drivers. When powering external circuitry, ensure total VISO current-including VDD2 supply current-remains within rated limits and verify thermal performance at maximum ambient temperature and load.
ADUM6211ARSZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- IsoPower®, iCoupler®
- Package/Case:
- 20-SSOP (0.209", 5.30mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Technology:
- Magnetic Coupling
- Type:
- General Purpose
- Isolated Power:
- Yes
- 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:
- 1Mbps
- Propagation Delay tpLH / tpHL (Max):
- 50ns, 50ns
- Pulse Width Distortion (Max):
- 10ns
- 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:
- 20-SSOP
ADUM6211ARSZ FAQ
1.How can I place an order for ADUM6211ARSZ through Aetrix?
Please submit a Request for Quotation (RFQ) for ADUM6211ARSZ 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 ADUM6211ARSZ reliable?
The price and inventory of ADUM6211ARSZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADUM6211ARSZ is usually 5 days.
3.What payment methods are accepted for ADUM6211ARSZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADUM6211ARSZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADUM6211ARSZ?
ADUM6211ARSZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADUM6211ARSZ 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 ADUM6211ARSZ?
For technical support, including ADUM6211ARSZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADUM6211ARSZ requirements.
6.How does Aetrix verify that ADUM6211ARSZ is sourced from the original manufacturer or authorized distributors?
All ADUM6211ARSZ 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 ADUM6211ARSZ meets industry standards.
7.What is the process for return or replacement of ADUM6211ARSZ?
All ADUM6211ARSZ units undergo pre-shipment inspection (PSI). If there is an issue with ADUM6211ARSZ, 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 ADUM6211ARSZ part is unused and in its original packaging.
Return procedure for ADUM6211ARSZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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