My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX22666CAWE+
- Part No.:
- MAX22666CAWE+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Digital Isolators
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
MAX22666CAWE+.pdf
- Description:
- 6 CHANNEL REINFORCED ISOLATOR
- Quantity:
- Payment:
- Shipping:
Inventory:215
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX22666CAWE+ from Analog Devices is a six-channel, unidirectional, reinforced digital isolator in a 16-pin wide SOIC package with 8mm creepage and clearance. It delivers 200Mbps maximum data rate, 7ns typical propagation delay at 3.3V, and 50kV/μs CMTI, enabling high-speed isolated communication in battery management systems and automotive inverters.
For engineers reviewing the MAX22666CAWE+ datasheet, MAX22666CAWE+ pinout, MAX22666CAWE+ application, or MAX22666CAWE+ equivalent, this page provides verified specifications, channel directionality, isolation safety ratings (5kVRMS/848VRMS), supply voltage flexibility (1.71V–5.5V per side), and real-world use cases in EV powertrain subsystems.
Technical Context
The MAX22666CAWE+ implements six independent unidirectional channels-data flows exclusively from Side A (IN1–IN6) to Side B (OUT1–OUT6)-enabling clean separation of control and power domains. Its proprietary capacitive isolation barrier achieves reinforced insulation per VDE 0884-11 (pending) and UL1577 certification.
It supports dual independent supplies (VDDA/GNDA and VDDB/GNDB), allowing level translation between 1.71V and 5.5V logic domains. The device includes undervoltage lockout (1.5V–1.66V threshold) and a refresh circuit to maintain output accuracy during static input conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Isolation Rating | 5kVRMS for 60s (VISO); enables compliance with reinforced insulation requirements in high-voltage automotive systems |
| Working Voltage | 848VRMS continuous (VIOWM); supports long-term operation in 800V battery architectures |
| Max Data Rate | 200Mbps; allows real-time sampling and feedback in fast-switching SiC/GaN inverter gate drivers |
| Propagation Delay | 7ns typ at VDD = 3.3V; minimizes timing skew in synchronized multi-channel control loops |
| CMTI | 50kV/μs typ; ensures robust operation amid high dv/dt noise in motor drives and DC-DC converters |
| Supply Range | 1.71V–5.5V per side (VDDA/VDDB); permits direct interfacing with 1.8V microcontrollers and 3.3V/5V peripherals |
| Power @ 1Mbps | 0.71mW/channel at 1.8V; reduces thermal load in space-constrained BMS modules |
Pinout & Package
Package: 16-pin Wide SOIC (W16MS+13), 8mm creepage and clearance, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 VDDA | Side A power supply | Bypass with 0.1µF capacitor; sets logic levels for IN1–IN6 inputs |
| 2–4 IN1–IN3 | Unidirectional inputs (A→B) | Accept 1.71V–5.5V logic; no external pullups required |
| 5–7 IN4–IN6 | Unidirectional inputs (A→B) | Same voltage range as IN1–IN3; all six channels flow A→B only |
| 8 GNDA | Side A ground reference | Must be isolated from GNDB; forms primary-side return path |
| 9 GNDB | Side B ground reference | Isolated return for OUT1–OUT6; critical for noise rejection |
| 10–12 OUT4–OUT6 | Unidirectional outputs (A→B) | Push-pull CMOS/TTL-compatible; drive loads directly without pullups |
| 13–15 OUT1–OUT3 | Unidirectional outputs (A→B) | Match IN1–IN3 mapping; enable full 6-channel forward data path |
| 16 VDDB | Side B power supply | Bypass with 0.1µF capacitor; sets logic levels for OUT1–OUT6 outputs |
Key Features
| Feature | Design Value |
|---|---|
| All-unidirectional A→B architecture | Eliminates bidirectional contention; simplifies PCB layout and timing analysis in isolated I/O applications |
| Reinforced isolation (5kVRMS) | Meets IEC 60747-5-5; certified to UL1577 and cUL CSA 5A for functional safety in automotive systems |
| 200Mbps data rate | Supports high-resolution PWM feedback and fast SPI transactions in real-time motor control |
| 1.71V–5.5V dual-supply flexibility | Enables seamless level translation between low-voltage MCUs and higher-voltage sensor/actuator interfaces |
| Default-high output (C/F version) | Ensures known safe state on power-up or input loss; critical for fail-safe BMS monitoring circuits |
Applications
| Battery Management System (BMS) | Automotive Inverter Control |
|---|---|
Use Scenario: Isolating cell voltage and temperature sensing signals from MCU in 400V/800V traction battery packs. IC Role / Device Role / Timing Role: Six-channel unidirectional isolator transmitting analog monitor data and fault flags from isolated high-side domain to low-side controller. Use Value: Enables precise, noise-immune monitoring under ±12.8kV surge stress while maintaining <7ns propagation delay for fast fault response. | Use Scenario: Transmitting gate-drive signals and feedback from SiC half-bridge drivers to MCU in EV traction inverters. IC Role / Device Role / Timing Role: Forward-path isolator carrying PWM commands and desaturation fault signals across 848VRMS working voltage barrier. Use Value: Delivers 200Mbps throughput and 50kV/μs CMTI to sustain signal integrity amid >50kV/μs common-mode transients in high-frequency switching. |
| Industrial Isolated Digital I/O | Charger Communication Interface |
Use Scenario: Providing galvanically isolated digital inputs/outputs for PLC modules interfacing with 24V field sensors and actuators. IC Role / Device Role / Timing Role: Unidirectional isolator converting 24V industrial logic to 3.3V/5V MCU domain with reinforced 5kVRMS barrier. Use Value: Reduces system power by 0.71mW/channel at 1.8V, enabling compact, fanless enclosure designs without thermal derating. | Use Scenario: Isolating CAN FD or UART communication lines between OBC controller and vehicle network in AC/DC chargers. IC Role / Device Role / Timing Role: High-speed serial interface isolator supporting 2 Mbps CAN FD or 10 Mbps UART with low jitter (11.1ps RMS). Use Value: Maintains signal fidelity over 8mm creepage distance while meeting CISPR-25 Class 5 EMI requirements for automotive charging systems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar six-channel unidirectional digital isolator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SI8660BB-B-IS | 25Mbps max data rate; 100ns propagation delay; 3.75kVRMS isolation rating | Suitable for lower-speed industrial I/O but not 200Mbps BMS or inverter control | Select when cost sensitivity outweighs speed and reinforced isolation needs |
| ADUM6601ARIZ-RL | Integrated isolated DC-DC converter; 25Mbps; 5kVRMS; 16-pin SOIC | Reduces external power supply count but consumes more board area and dissipates more heat | Choose when isolated side power delivery is required and 200Mbps is unnecessary |
Compared with SI8660BB-B-IS and ADUM6601ARIZ-RL, the MAX22666CAWE+ uniquely combines 200Mbps speed, 5kVRMS reinforced isolation, and ultra-low 0.71mW/channel power at 1.8V-making it optimal for next-generation EV power electronics where timing precision, safety margin, and thermal density are critical.
Availability
MAX22666CAWE+ is available at Aetrix Electronics and suitable for battery management systems, automotive inverters, and industrial isolated digital I/O requiring stable component supply, long lifecycle support, and AEC-Q100-aligned reliability.
Supply support for MAX22666CAWE+ 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 technologies, serving automotive, industrial, communications, and healthcare markets.
The MAX22666CAWE+ belongs to Analog Devices' MAX2266x family of reinforced digital isolators, engineered specifically for high-reliability, high-speed isolation in electric vehicle powertrain and charging infrastructure applications.
FAQ
What is the maximum data rate supported by the MAX22666CAWE+?
The MAX22666CAWE+ supports a maximum data rate of 200Mbps under 2.25V–5.5V supply conditions. This is confirmed in the Dynamic Characteristics section for MAX2266_C/MAX2266_F variants. At lower supplies (1.71V–2.25V), the rated maximum drops to 150Mbps. The 200Mbps capability enables high-fidelity real-time feedback in EV inverter gate drivers and BMS cell monitoring.
Does the MAX22666CAWE+ support bidirectional communication?
No, the MAX22666CAWE+ implements six strictly unidirectional channels flowing from Side A (IN1–IN6) to Side B (OUT1–OUT6). Unlike the MAX22663–MAX22665 variants, it does not support reverse-direction signaling. This architecture eliminates contention risks and simplifies timing closure in isolated digital I/O and sensor interface applications.
What safety certifications apply to the MAX22666CAWE+?
The MAX22666CAWE+ is certified to UL1577 (5000VRMS) and cUL CSA Bulletin 5A, with VDE 0884-11 reinforced insulation pending. It meets IEC 60747-5-5 requirements for reinforced isolation, including 5kVRMS withstand voltage for 60 seconds and 848VRMS continuous working voltage-making it suitable for ASIL-B/C automotive subsystems.
How does the MAX22666CAWE+ handle undervoltage conditions?
The MAX22666CAWE+ monitors both VDDA and VDDB for undervoltage events using a 1.5V–1.66V threshold with 45mV hysteresis. During an undervoltage condition on either supply, all outputs default to high (as it is a C/F variant), regardless of input state. This fail-safe behavior ensures predictable operation during power sequencing or brownout events in automotive ECUs.
Can the MAX22666CAWE+ be used for level translation between different logic voltages?
Yes, the MAX22666CAWE+ supports independent 1.71V–5.5V supplies on Side A (VDDA) and Side B (VDDB), enabling robust level translation-for example, interfacing a 1.8V microcontroller to a 5V sensor bus. Input thresholds scale with VDD_, and outputs swing rail-to-rail, eliminating external level shifters while maintaining signal integrity and timing accuracy.
MAX22666CAWE+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 16-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Technology:
- Capacitive Coupling
- Type:
- CAN, RS232, RS422, RS485, SPI
- Isolated Power:
- No
- Number of Channels:
- 6
- Inputs - Side 1/Side 2:
- 6/0
- Channel Type:
- Unidirectional
- Voltage - Isolation:
- 5000Vrms
- Common Mode Transient Immunity (Min):
- 50kV/µs (Typ)
- Data Rate:
- 200Mbps
- Propagation Delay tpLH / tpHL (Max):
- 9.5ns, 9.9ns
- Pulse Width Distortion (Max):
- 2ns
- Rise / Fall Time (Typ):
- 0.8ns, 1ns
- Voltage - Supply:
- 1.71V ~ 5.5V
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Operating Temperature:
- -40°C ~ 125°C
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
MAX22666CAWE+ FAQ
1.How can I place an order for MAX22666CAWE+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX22666CAWE+ 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 MAX22666CAWE+ reliable?
The price and inventory of MAX22666CAWE+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX22666CAWE+ is usually 5 days.
3.What payment methods are accepted for MAX22666CAWE+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX22666CAWE+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX22666CAWE+?
MAX22666CAWE+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX22666CAWE+ 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 MAX22666CAWE+?
For technical support, including MAX22666CAWE+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX22666CAWE+ requirements.
6.How does Aetrix verify that MAX22666CAWE+ is sourced from the original manufacturer or authorized distributors?
All MAX22666CAWE+ 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 MAX22666CAWE+ meets industry standards.
7.What is the process for return or replacement of MAX22666CAWE+?
All MAX22666CAWE+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX22666CAWE+, 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 MAX22666CAWE+ part is unused and in its original packaging.
Return procedure for MAX22666CAWE+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX22666CAWE+ 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
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
