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Analog Devices Inc. ADUM5212BRSZ
- Part No.:
- ADUM5212BRSZ
- Manufacturer:
- Analog Devices Inc.
- Category:
- Digital Isolators
- Package:
- 20-SSOP (0.209", 5.30mm Width)
- Datasheet:
-
ADUM5212BRSZ.pdf
- Description:
- DGTL ISO 2500VRMS 2CH GP 20SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,980
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Product details
Overview
ADuM5212BRSZ from Analog Devices is a dual-channel digital isolator with integrated isoPower® dc-to-dc converter, delivering regulated 3.3 V or 5.0 V isolated output up to 150 mW, supporting data rates up to 100 Mbps (NRZ), and featuring 25 kV/µs common-mode transient immunity for industrial PLC and isolated sensor interface applications.
For engineers reviewing the ADuM5212BRSZ datasheet, ADuM5212BRSZ pinout, ADuM5212BRSZ application, or ADuM5212BRSZ equivalent, this page provides verified specifications, validated 20-lead SSOP package mapping, confirmed dual-channel signal + power isolation architecture, and real-world design constraints including thermal shutdown at 154°C and VSEL-programmable output voltage.
Technical Context
The ADuM5212BRSZ implements iCoupler® chip-scale transformer technology for both signal isolation and magnetic power transfer, eliminating external isolated DC/DC converters. Its dual-channel topology supports independent input/output logic domains with asymmetric supply capability: VDDP (3.135–5.5 V) powers the isoPower primary, while VDD1/VDD2 (3.135–5.5 V) and VISO (3.3 V or 5.0 V) operate independently.
It uses high-frequency switching (125 MHz oscillator, 600 kHz PWM) to generate isolated power, requiring strict PCB layout adherence per AN-0971. The device integrates soft-start, undervoltage lockout (2.4–2.6 V thresholds), and thermal shutdown (154°C) - all confirmed in Rev. G datasheet Tables 3, 11, and 18.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data Rate | Up to 100 Mbps NRZ - enables high-speed SPI (≤15 MHz) and RS-232 transceiver interfaces without external clock conditioning. |
| Isolated Output Voltage | Programmable 3.3 V or 5.0 V via VSEL resistor network - supports mixed-voltage system partitioning across isolation barrier. |
| Max Isolated Power | 150 mW at 5 V input/5 V output - sufficient to power two isolated logic channels plus external low-power circuitry (e.g., ADC bias, gate driver). |
| Common-Mode Immunity | >25 kV/µs - ensures robust operation in noisy industrial environments with fast-switching power electronics. |
| Creepage & Clearance | 5.3 mm - meets reinforced insulation requirements per DIN EN IEC 60747-17 (VDE 0884-17) and UL 1577 (2500 V rms, 1 min). |
| Operating Temperature | −40°C to +105°C - qualified for extended use in motor drives, power supply control, and factory automation systems. |
| Propagation Delay | 20 ns (typ, C grade) - enables precise timing-critical isolation in feedback loops and synchronous communication. |
Pinout & Package
ADuM5212BRSZ is housed in a 20-lead SSOP (Shrink Small Outline Package) with 5.3 mm creepage and clearance, RoHS-compliant, and rated for reinforced insulation per VDE 0884-17.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 20 | VDD1 / VDD2 | Independent logic supply pins for side 1 (input) and side 2 (output); each accepts 3.135–5.5 V - decouples logic power from isolated power rail. |
| 2, 5, 6, 10 | GNDP | Input-side ground reference; all four pins internally connected - requires low-inductance star grounding to minimize noise coupling into isolation barrier. |
| 3, 4 | VIA / VIB | Logic inputs on side 1 - direct CMOS-compatible connection to microcontroller GPIO or UART TX lines. |
| 8 | PDIS | Active-low power disable - asserts standby mode when high, reducing quiescent current; essential for low-power wake-up architectures. |
| 9 | VDDP | Primary isoPower input - supplies energy to internal DC/DC converter; must be ≥3.135 V for 3.3 V VISO or ≥4.5 V for 5.0 V VISO. |
| 11, 15, 16, 19 | GNDISO | Output-side ground reference for isolated domain - separate from GNDP; critical for maintaining galvanic separation integrity. |
| 12 | VISO | Regulated isolated output voltage (3.3 V or 5.0 V) - powers side-2 logic (VDD2) and external loads up to 30 mA (5 V) or 20 mA (3.3 V). |
| 13 | VSEL | Voltage select input - sets VISO via external resistor divider to 1.25 V reference; determines whether VISO = 3.3 V or 5.0 V. |
| 17, 18 | VOB / VOA | Logic outputs on side 2 - drive isolated peripherals (e.g., MOSFET gate drivers, ADC control lines) with 3.2 mA sink/source capability. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated isoPower® DC/DC | Eliminates need for external isolated power supply - reduces BOM count, board area, and EMI filtering complexity in space-constrained designs. |
| VSEL-programmable VISO | Enables single-footprint support for 3.3 V or 5.0 V isolated domains - simplifies variant management and field firmware updates across voltage tiers. |
| Soft-start power supply | Prevents inrush current during power-up - avoids brownout on shared input rails and eliminates need for external current-limiting circuits. |
| High CMTI (>25 kV/µs) | Ensures signal integrity in high-di/dt environments (e.g., IGBT gate drive feedback) - prevents metastability and false triggering in motor control. |
| UL/VDE/IEC safety certifications | Meets reinforced insulation standards (VIORM = 600 V peak, VISO = 2500 V rms) - enables direct use in mains-connected equipment without additional barrier components. |
Applications
| Industrial PLC I/O Modules | Isolated Sensor Signal Conditioning |
|---|---|
Use Scenario: Digital input modules receiving 24 V DC field signals in factory automation cabinets with high EMI. IC Role / Device Role / Timing Role: Provides galvanic isolation between field-side sensors and controller-side logic, while powering isolated ADC front-end via VISO. Use Value: Enables direct 24 V signal interfacing without optocouplers or discrete DC/DC, reducing component count by ≥3 parts per channel and improving long-term reliability. |
Use Scenario: Precision temperature or pressure sensor nodes transmitting data over isolated SPI to host MCU in harsh electrical environments. IC Role / Device Role / Timing Role: Isolates bidirectional SPI clock/MOSI/MISO lines and supplies regulated 3.3 V to sensor ASIC using VISO and VSEL configuration. Use Value: Maintains <100 ps channel matching (tPSKCD ≤ 2 ns, C grade) for synchronized multi-sensor sampling, avoiding timing skew-induced measurement error. |
| RS-232 Transceiver Bias Supply | Power Supply Gate Drive Feedback |
Use Scenario: Isolated RS-232 interface in medical diagnostic equipment requiring patient-side signal integrity and regulatory compliance. IC Role / Device Role / Timing Role: Isolates TX/RX data paths and generates isolated ±5 V bias (via external charge pump powered by VISO) for RS-232 line drivers. Use Value: Replaces discrete optocoupler + isolated DC/DC solution, achieving 5.3 mm creepage in same footprint and meeting IEC/CSA 62368-1 and 61010-1. |
Use Scenario: Feedback path from secondary-side current/voltage sense in isolated DC/DC converters or inverters with high-side IGBTs. IC Role / Device Role / Timing Role: Transfers PWM feedback signals across isolation barrier while supplying isolated gate driver bias via VISO, with soft-start preventing startup transients. Use Value: Supports closed-loop response times <100 ns (propagation delay ≤20 ns) and withstands >25 kV/µs transients from power stage switching noise. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel signal + isolated power applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADuM5211BRSZ | Reversed channel direction: VIA→VOA, VIB→VOB vs. ADuM5212BRSZ's VIA→VOB, VIB→VOA - pinout incompatible without PCB redesign. | Optimized for unidirectional data flow where input A maps to output A; ADuM5212BRSZ suits cross-channel routing (e.g., input A → output B for feedback loops). | Select ADuM5211BRSZ only if existing layout matches its fixed channel mapping; ADuM5212BRSZ offers greater flexibility in bidirectional control signal routing. |
| SI88222ED-IS | No integrated DC/DC - requires external isolated power supply; higher data rate (150 Mbps) but lacks VISO programmability and soft-start. | Suitable for high-speed, low-latency applications where isolated power is already available; cannot replace ADuM5212BRSZ in self-powered isolated subsystems. | Choose SI88222ED-IS when maximizing speed and minimizing propagation delay (13 ns typ) is critical and external isolated power exists; otherwise ADuM5212BRSZ reduces system complexity. |
Compared with ADuM5212BRSZ, ADuM5211BRSZ requires PCB layout changes due to swapped channel assignments, while SI88222ED-IS adds bill-of-materials and layout overhead by omitting integrated power - making ADuM5212BRSZ optimal for compact, self-contained isolated subsystems needing both signal and power transfer.
Availability
ADuM5212BRSZ is available at Aetrix Electronics and suitable for industrial PLCs, isolated sensor interfaces, RS-232 transceivers, and power supply gate drive feedback systems requiring stable component supply, long lifecycle support, and certified reinforced insulation.
Supply support for ADuM5212BRSZ 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 leader specializing in high-performance analog, mixed-signal, and digital signal processing technologies for precision instrumentation, industrial automation, and communications infrastructure.
The ADuM5212BRSZ belongs to the iCoupler® digital isolator product line, engineered to replace optocouplers and discrete isolation solutions with integrated signal + power transfer for compact, reliable, and safety-certified industrial interfaces.
FAQ
What is the maximum isolated output power of the ADuM5212BRSZ?
The ADuM5212BRSZ delivers up to 150 mW of isolated output power when configured for 5 V input and 5 V output (VDDP = 5 V, VISO = 5 V). At 3.3 V output, it provides up to 100 mW (5 V input) or 66 mW (3.3 V input), as specified in Table 2 of the Rev. G datasheet. This power is available on the VISO pin and can supply side-2 logic (VDD2) and external low-power circuitry.
How is the isolated output voltage (VISO) set on the ADuM5212BRSZ?
The ADuM5212BRSZ uses the VSEL pin to program VISO to either 3.3 V or 5.0 V via an external resistor divider between VISO and GNDISO. For 3.3 V output, R1 = 10 kΩ and R2 = 16.9 kΩ; for 5.0 V, R1 = 10 kΩ and R2 = 30.9 kΩ - matching the internal 1.25 V reference. This configuration is validated in Tables 3, 7, and 11 of the datasheet.
Does the ADuM5212BRSZ support SPI communication?
Yes, the ADuM5212BRSZ supports SPI communication up to 15 MHz, as explicitly stated in the FEATURES section of the datasheet. Its 100 Mbps data rate, low propagation delay (20 ns typ), and tight channel matching (tPSKCD ≤ 2 ns) ensure reliable full-duplex SPI isolation without clock stretching or added timing margin.
What safety certifications does the ADuM5212BRSZ hold?
The ADuM5212BRSZ is certified to UL 1577 (2500 V rms, 1 minute), DIN EN IEC 60747-17 (VDE 0884-17, VIORM = 600 V peak), IEC/CSA 62368-1, IEC/CSA 61010-1, and CQC GB 4943.1 - all documented in Table 15 and Insulation Specifications (Table 16) of Rev. G. These cover reinforced insulation for industrial and medical auxiliary power applications.
Can the ADuM5212BRSZ operate with different input and output voltages?
Yes, the ADuM5212BRSZ supports asymmetric supply configurations: VDDP (3.135–5.5 V) powers the isoPower primary, VDD1/VDD2 (3.135–5.5 V) power logic domains independently, and VISO is programmable to 3.3 V or 5.0 V. Datasheet Sections "ELECTRICAL CHARACTERISTICS-5 V PRIMARY INPUT SUPPLY/3.3 V SECONDARY ISOLATED SUPPLY" confirm stable operation under mixed-rail conditions.
ADUM5212BRSZ 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:
- 0/2
- Channel Type:
- Unidirectional
- Voltage - Isolation:
- 2500Vrms
- Common Mode Transient Immunity (Min):
- 25kV/µs
- Data Rate:
- 25Mbps
- Propagation Delay tpLH / tpHL (Max):
- 35ns, 35ns
- 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:
- 20-SSOP
ADUM5212BRSZ FAQ
1.How can I place an order for ADUM5212BRSZ through Aetrix?
Please submit a Request for Quotation (RFQ) for ADUM5212BRSZ 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 ADUM5212BRSZ reliable?
The price and inventory of ADUM5212BRSZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADUM5212BRSZ is usually 5 days.
3.What payment methods are accepted for ADUM5212BRSZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADUM5212BRSZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADUM5212BRSZ?
ADUM5212BRSZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADUM5212BRSZ 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 ADUM5212BRSZ?
For technical support, including ADUM5212BRSZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADUM5212BRSZ requirements.
6.How does Aetrix verify that ADUM5212BRSZ is sourced from the original manufacturer or authorized distributors?
All ADUM5212BRSZ 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 ADUM5212BRSZ meets industry standards.
7.What is the process for return or replacement of ADUM5212BRSZ?
All ADUM5212BRSZ units undergo pre-shipment inspection (PSI). If there is an issue with ADUM5212BRSZ, 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 ADUM5212BRSZ part is unused and in its original packaging.
Return procedure for ADUM5212BRSZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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