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Analog Devices Inc./Maxim Integrated MAX22664CAWE+
- Part No.:
- MAX22664CAWE+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Digital Isolators
- Package:
- -
- Datasheet:
-
MAX22664CAWE+.pdf
- Description:
- 6 CHANNEL REINFORCED ISOLATOR
- Quantity:
- Payment:
- Shipping:
Inventory:482
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Product details
Overview
MAX22664CAWE+ from Analog Devices is a reinforced, six-channel digital isolator in a 16-pin wide SOIC package with 8mm creepage and clearance, rated for 5kVRMS withstand voltage (60s), 848VRMS working voltage, and ±12.8kV surge immunity. It supports bidirectional signal flow-four channels A→B and two B→A-at up to 200Mbps data rate, with 7ns typical propagation delay at 3.3V and 11.1ps RMS clock jitter. It enables isolated SPI communication in automotive battery management systems.
For engineers reviewing the MAX22664CAWE+ datasheet, MAX22664CAWE+ pinout, MAX22664CAWE+ application, or MAX22664CAWE+ equivalent, key selection criteria include reinforced isolation rating (VDE 0884-11 pending), 1.71V–5.5V dual-supply flexibility, default-high output behavior, CMTI of 50kV/μs, and compatibility with high-speed isolated serial interfaces requiring low power and precise timing.
Technical Context
The MAX22664CAWE+ implements Analog Devices' proprietary capacitive isolation technology with reinforced insulation barrier, supporting independent 1.71V–5.5V supplies on both sides for level translation. Its channel configuration-four unidirectional A→B and two B→A-enables full-duplex isolated SPI (e.g., MOSI/MISO/SCLK/CS + two GPIOs) without external direction control logic.
It features an integrated refresh circuit ensuring output stability during static input conditions, undervoltage lockout (1.5V–1.66V threshold with 45mV hysteresis) on both VDDA and VDDB, and push-pull outputs eliminating need for external pull-ups. All six channels operate DC–200Mbps with guaranteed timing across –40°C to +125°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Isolation Rating | 5kVRMS for 60s (UL1577, cUL, VDE 0884-11 pending); enables safety-critical barrier in automotive BMS and industrial PLCs |
| Max Data Rate | 200Mbps (C/F variant); supports high-speed isolated SPI and digital I/O without timing bottlenecks |
| Propagation Delay | 7ns typ at VDD = 3.3V; ensures sub-10ns latency for real-time control loops |
| CMTI | 50kV/μs min; maintains signal integrity in noisy motor drive or inverter environments |
| Supply Range | 1.71V–5.5V per side; allows direct interfacing with 1.8V microcontrollers and 3.3V/5V peripherals |
| Power @ 1Mbps | 0.71mW/channel @ 1.8V, 1.34mW/channel @ 3.3V; reduces thermal load in compact, sealed enclosures |
| Surge Withstand | ±12.8kV (1.2/50μs) between GNDA/GNDB; meets IEC 61000-4-5 Level 4 for industrial fieldbus |
Pinout & Package
Package: 16-pin Wide SOIC (W16MS+13), 8mm creepage/clearance, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 VDDA | Side A power supply input | Bypass with 0.1µF capacitor; sets logic levels for IN1–IN6 and OUT1–OUT3 on Side A |
| 2 IN1 | Unidirectional input (A→B) | Drives OUT1 on Side B; compatible with 1.71V–5.5V logic |
| 3 IN2 | Unidirectional input (A→B) | Drives OUT2 on Side B; supports high-speed SPI clock and data lines |
| 4 IN3 | Unidirectional input (A→B) | Drives OUT3 on Side B; used for chip select or auxiliary control signals |
| 5 IN4 / OUT4 | Bidirectional terminal (A↔B) | Configured as IN4 on Side A → OUT4 on Side B (A→B direction); part of 4:2 channel split |
| 6 IN5 / OUT5 | Bidirectional terminal (A↔B) | Configured as IN5 on Side A → OUT5 on Side B (A→B direction); completes four A→B channels |
| 7 IN6 / OUT6 | Bidirectional terminal (A↔B) | Configured as OUT6 on Side B ← IN6 on Side A (B→A direction); one of two reverse-direction channels |
| 8 GNDA | Side A ground reference | Return path for VDDA and all Side A signals; must be isolated from GNDB |
| 9 GNDB | Side B ground reference | Return path for VDDB and all Side B signals; galvanically separated from GNDA |
| 10 OUT6 | Unidirectional output (B→A) | Driven by IN6 on Side A; provides reverse-path feedback or status signal |
| 11 OUT5 | Unidirectional output (B→A) | Driven by IN5 on Side A; second reverse-direction channel for full-duplex operation |
| 12 OUT4 | Unidirectional output (A→B) | Driven by IN4 on Side A; fourth forward channel for MISO or GPIO |
| 13 OUT3 | Unidirectional output (A→B) | Driven by IN3 on Side A; third forward channel for CS or interrupt |
| 14 OUT2 | Unidirectional output (A→B) | Driven by IN2 on Side A; second forward channel for SCLK or data |
| 15 OUT1 | Unidirectional output (A→B) | Driven by IN1 on Side A; primary forward channel for MOSI or command |
| 16 VDDB | Side B power supply input | Bypass with 0.1µF capacitor; sets logic levels for OUT1–OUT6 on Side B |
Key Features
| Feature | Design Value |
|---|---|
| Reinforced Isolation | 5kVRMS withstand (60s), 848VRMS working voltage, and ±12.8kV surge meet IEC 61800-5-1 and ISO 26262 ASIL-D requirements |
| 200Mbps High-Speed Operation | Enables isolated SPI at ≥50MHz SCLK without bit errors; eliminates need for slower optocouplers |
| Low-Power Architecture | 0.71mW/channel @ 1.8V/1Mbps reduces system heat and extends battery life in portable BMS |
| Default-High Output Logic | Ensures known state during power-up/down or open inputs-critical for fail-safe SPI CS assertion |
| Dual-Supply Level Translation | VDDA (1.71–5.5V) and VDDB (1.71–5.5V) allow bridging 1.8V MCU to 3.3V ADC or 5V actuator drivers |
| 50kV/μs CMTI | Prevents data corruption in high-di/dt environments like motor phase switching or DC-DC converter transients |
Applications
| Automotive Battery Management System (BMS) | Industrial Isolated SPI Interface |
|---|---|
Use Scenario: Isolating microcontroller SPI bus from high-voltage battery cell monitoring ICs in EV traction packs. IC Role / Device Role / Timing Role: MAX22664CAWE+ provides four forward (MOSI, SCLK, CS, AUX) and two reverse (MISO, FAULT) isolated SPI channels with <7ns propagation delay. Use Value: Enables real-time cell voltage sampling at 200Mbps while blocking >1kV common-mode transients from battery stack ground noise. | Use Scenario: Connecting isolated RS-485 transceivers and digital I/O expanders to a central PLC controller over noisy factory floors. IC Role / Device Role / Timing Role: Acts as a 6-channel galvanic barrier with four A→B control/data lines and two B→A status/acknowledge lines. Use Value: Maintains deterministic 200Mbps communication despite 50kV/μs EFT bursts, eliminating retransmission overhead. |
| Medical Patient Monitoring Equipment | Renewable Energy Inverter Control |
Use Scenario: Isolating patient-connected analog front-end sensors from digital processing unit in ECG/EEG devices. IC Role / Device Role / Timing Role: Provides reinforced 5kVRMS isolation between low-power sensor domain (1.8V) and host processor (3.3V) with default-high safety state. Use Value: Meets IEC 60601-1 creepage/clearance and leakage current requirements while enabling fast data streaming. | Use Scenario: Isolating gate driver control signals and current sense feedback in solar string inverters operating at 1000V DC bus. IC Role / Device Role / Timing Role: Transfers PWM commands (A→B) and overcurrent fault signals (B→A) across 848VRMS working isolation barrier. Use Value: Survives ±12.8kV lightning surges on DC link while maintaining <10ns timing skew for synchronous switching. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar six-channel digital isolator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SI8661ED-B-IS | 25Mbps max data rate; 3.75kVRMS isolation; 16SOIC package with 7.8mm creepage | Lower speed limits use in high-bandwidth SPI; reduced surge rating (10kV) affects harsh environment suitability | Select when cost sensitivity outweighs speed/isolation needs and 25Mbps suffices for legacy fieldbus |
| ADUM6601ARIZ-RL | Integrated isolated DC-DC converter; 25Mbps; 5kVRMS; 20-lead SOIC | Eliminates external isolated power supply but increases footprint and reduces data rate vs. MAX22664CAWE+ | Choose when board space permits larger package and isolated power simplification justifies 25Mbps limitation |
Compared with SI8661ED-B-IS and ADUM6601ARIZ-RL, the MAX22664CAWE+ delivers 8× higher data rate (200Mbps), superior surge immunity (±12.8kV vs. ±10kV/±6kV), and optimized 4:2 channel directionality for full-duplex SPI-making it the preferred choice for next-generation automotive and industrial isolation where speed, robustness, and channel flexibility are critical.
Availability
MAX22664CAWE+ is available at Aetrix Electronics and suitable for automotive battery management systems, industrial PLC I/O modules, and medical patient monitoring equipment requiring stable component supply, long-term lifecycle support, and AEC-Q100-compliant sourcing.
Supply support for MAX22664CAWE+ 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 MAX22664CAWE+ belongs to Analog Devices' MAX2266x reinforced digital isolator family, engineered specifically for high-reliability, high-speed isolation in electric vehicle powertrain systems and industrial automation where safety certification, low power, and precise timing are mandatory.
FAQ
What is the maximum data rate supported by the MAX22664CAWE+?
The MAX22664CAWE+ supports a maximum data rate of 200Mbps, verified across its full operating temperature range (–40°C to +125°C) and supply voltage range (1.71V to 5.5V). This performance applies to all six channels simultaneously and is specified in the Dynamic Characteristics table for the C/F variant under "Maximum Data Rate" with typical values confirmed at 3.3V and 25°C. The 200Mbps capability enables high-speed isolated SPI, RS-422, and digital I/O applications without protocol throttling.
Does the MAX22664CAWE+ have reinforced isolation certification?
Yes, the MAX22664CAWE+ is certified to UL1577 (5000VRMS) and cUL (CSA Bulletin 5A), with VDE 0884-11 reinforced insulation certification pending. Its 5kVRMS withstand voltage (60s), 848VRMS working voltage (VIOWM), and ±12.8kV surge rating meet reinforced insulation requirements per IEC 60747-5-5. These ratings are validated through production testing and design qualification, making the MAX22664CAWE+ suitable for ASIL-D automotive and SIL-3 industrial safety applications.
What is the channel direction configuration of the MAX22664CAWE+?
The MAX22664CAWE+ provides four unidirectional channels from Side A to Side B (IN1→OUT1, IN2→OUT2, IN3→OUT3, IN4→OUT4) and two unidirectional channels from Side B to Side A (IN5→OUT5, IN6→OUT6). This 4:2 split is explicitly defined in the Functional Diagrams and Detailed Description sections of the datasheet and optimizes the device for full-duplex isolated SPI interfaces where MOSI, SCLK, CS, and AUX flow A→B while MISO and FAULT flow B→A.
What are the undervoltage lockout (UVLO) thresholds for the MAX22664CAWE+?
The MAX22664CAWE+ features independent UVLO monitoring on both VDDA and VDDB, with a threshold range of 1.5V to 1.66V (typical 1.6V) and 45mV hysteresis. When either supply drops below this threshold during power-up, power-down, or brownout, all outputs transition to their default-high state regardless of input conditions. This behavior is documented in Table 2 and Figures 2–5 of the datasheet and ensures fail-safe operation in automotive and industrial power systems.
Is the MAX22664CAWE+ suitable for level translation between different logic voltages?
Yes, the MAX22664CAWE+ supports true bidirectional level translation: VDDA can be set from 1.71V to 5.5V independently of VDDB (also 1.71V to 5.5V), allowing seamless interfacing between 1.8V microcontrollers and 3.3V or 5V peripherals. Input thresholds scale with respective supply voltages (e.g., VIH = 0.7 × VDD_), and push-pull outputs drive TTL/CMOS loads directly. This dual-supply flexibility is confirmed in the DC Electrical Characteristics and Level Shifting sections of the datasheet.
MAX22664CAWE+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- -
- Packaging:
- Tube
- Product Status:
- Active
- Technology:
- -
- Type:
- -
- Isolated Power:
- -
- Number of Channels:
- -
- Inputs - Side 1/Side 2:
- -
- Channel Type:
- -
- Voltage - Isolation:
- -
- Common Mode Transient Immunity (Min):
- -
- Data Rate:
- -
- Propagation Delay tpLH / tpHL (Max):
- -
- Pulse Width Distortion (Max):
- -
- Rise / Fall Time (Typ):
- -
- Voltage - Supply:
- -
- Grade:
- -
- Qualification:
- -
- Operating Temperature:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
MAX22664CAWE+ FAQ
1.How can I place an order for MAX22664CAWE+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX22664CAWE+ 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 MAX22664CAWE+ reliable?
The price and inventory of MAX22664CAWE+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX22664CAWE+ is usually 5 days.
3.What payment methods are accepted for MAX22664CAWE+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX22664CAWE+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX22664CAWE+?
MAX22664CAWE+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX22664CAWE+ 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 MAX22664CAWE+?
For technical support, including MAX22664CAWE+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX22664CAWE+ requirements.
6.How does Aetrix verify that MAX22664CAWE+ is sourced from the original manufacturer or authorized distributors?
All MAX22664CAWE+ 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 MAX22664CAWE+ meets industry standards.
7.What is the process for return or replacement of MAX22664CAWE+?
All MAX22664CAWE+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX22664CAWE+, 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 MAX22664CAWE+ part is unused and in its original packaging.
Return procedure for MAX22664CAWE+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX22664CAWE+ Tags
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SI8710AC-B-ISR
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