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Analog Devices Inc./Maxim Integrated MAX22245BAWA+T
- Part No.:
- MAX22245BAWA+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Digital Isolators
- Package:
- 8-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
MAX22245BAWA+T.pdf
- Description:
- 2-CHANNEL REINFORCED DIIGITAL IS
- Quantity:
- Payment:
- Shipping:
Inventory:2,401
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Product details
Overview
MAX22245BAWA+T from Analog Devices is a reinforced, two-channel unidirectional digital isolator in 8-pin wide SOIC (W8MS+7) package, rated for 5kVRMS withstand voltage (60s), 848VRMS working voltage, and 200Mbps data rate. It features 7ns typical propagation delay at 3.3V, 50kV/µs CMTI, and operates across –40°C to +125°C with dual 1.71V–5.5V supplies - enabling isolated SPI, BMS communication, and automotive inverter gate drive interfaces.
For engineers reviewing the MAX22245BAWA+T datasheet, MAX22245BAWA+T pinout, MAX22245BAWA+T application, or MAX22245BAWA+T equivalent, this page delivers verified electrical specs, isolation safety ratings, channel directionality, power consumption at 1.8V/3.3V, and real-world design constraints including creepage/clearance (8mm), surge immunity (±12.8kV), and undervoltage lockout behavior.
Technical Context
The MAX22245BAWA+T implements reinforced galvanic isolation using Analog Devices' proprietary silicon process, supporting bidirectional supply independence (VDDA/VDDB = 1.71V–5.5V) and level translation. Its two channels are strictly unidirectional - both A→B - distinguishing it from the MAX22246's A↔B configuration.
It achieves 200Mbps maximum data rate only in C/F variants (confirmed by "MAX22245C/F" in Dynamic Characteristics tables), with 7.5ps RMS clock jitter and <2ns channel-to-channel skew. Safety compliance includes UL1577 (5kVRMS), cUL, and pending VDE 0884-11 reinforced insulation certification.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Isolation Rating | 5kVRMS for 60s - meets reinforced insulation requirements for functional safety in automotive BMS and inverters |
| Working Voltage | 848VRMS continuous - supports long-term operation in high-voltage battery domains up to 800V DC systems |
| Data Rate | 200Mbps - enables high-speed isolated SPI and fast digital feedback loops in motor control |
| Propagation Delay | 7ns typ at VDD = 3.3V - ensures sub-10ns latency for time-critical gate drive and protection signaling |
| CMTI | 50kV/µs typ - rejects fast transients in noisy industrial and EV power stages without signal corruption |
| Supply Range | 1.71V–5.5V per side - allows direct interfacing with 1.8V microcontrollers and 3.3V/5V peripherals without level shifters |
| Power @ 1Mbps | 0.78mW/channel at 1.8V - reduces thermal load in compact, sealed automotive modules |
Pinout & Package
Package: 8-pin wide-body SOIC (W8MS+7), 8mm creepage and clearance, RoHS-compliant, JEDEC MS-012AC outline.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - VDDA | Side A primary supply input | Bypass with 0.1µF ceramic capacitor; sets logic-high level for IN1/IN2 and powers internal isolation barrier |
| 2 - IN1 | Logic input channel 1 (Side A) | Accepts 1.71V–5.5V CMOS/TTL signals; no external pullup required due to internal hysteresis (410mV) |
| 3 - IN2 | Logic input channel 2 (Side A) | Independent unidirectional input; identical electrical specs to IN1; supports simultaneous high-speed data ingestion |
| 4 - GNDA | Side A ground reference | Must be isolated from GNDB; forms low-impedance return path for VDDA and input signals |
| 5 - GNDB | Side B ground reference | Galvanically separated from GNDA; required for reinforced isolation integrity and EMI rejection |
| 6 - OUT2 | Logic output channel 2 (Side B) | Push-pull driver; sinks/sourcing ±4mA; VOH = VDDB–0.4V, VOL = 0.4V - compatible with 1.8V/3.3V/5V receivers |
| 7 - OUT1 | Logic output channel 1 (Side B) | Matches OUT2 electrically; enables synchronous dual-channel isolation without timing skew degradation |
| 8 - VDDB | Side B primary supply input | Independent of VDDA; enables level translation between disparate logic domains (e.g., 1.8V MCU ↔ 5V ADC) |
Key Features
| Feature | Design Value |
|---|---|
| Reinforced Isolation | 5kVRMS withstand (60s), 848VRMS working voltage, and ±12.8kV surge immunity - certified to UL1577 and pending VDE 0884-11 |
| Low-Power Operation | 0.78mW/channel at 1Mbps/1.8V - cuts system power by >50% vs. legacy optocouplers in always-on BMS monitoring |
| High-Speed Performance | 200Mbps max data rate with 7ns propagation delay and 7.5ps RMS clock jitter - supports real-time isolated current sensing |
| Robust Transient Immunity | 50kV/µs CMTI - maintains signal integrity during IGBT switching noise in 800V EV inverters |
| Wide Supply Flexibility | 1.71V–5.5V on both sides - eliminates external level shifters when interfacing mixed-voltage subsystems |
Applications
| Battery Management System (BMS) | Automotive Inverter Gate Drive |
|---|---|
Use Scenario: Isolating cell voltage monitor ICs (e.g., MAX17853) from MCU in 96S Li-ion packs with 800V bus. IC Role / Device Role / Timing Role: Unidirectional data isolator transmitting sampled cell voltages and temperature readings from high-side domain to low-side controller. Use Value: Enables safe, high-accuracy telemetry under 848VRMS working voltage while meeting ASIL-D diagnostic coverage via reinforced insulation. | Use Scenario: Transmitting PWM signals from MCU to isolated gate drivers (e.g., MAX22702E) in traction inverter half-bridges. IC Role / Device Role / Timing Role: Low-latency, jitter-controlled isolator delivering synchronized gate commands across 5kVRMS barrier with <10ns channel skew. Use Value: Prevents shoot-through failures by guaranteeing deterministic timing and surviving 12.8kV surges during fault conditions. |
| Isolated SPI Interface | Industrial PLC Digital I/O |
Use Scenario: Isolating SPI bus between host processor and isolated ADCs (e.g., AD7403) in motor current sensing. IC Role / Device Role / Timing Role: Dual-channel unidirectional isolator carrying SCLK/MOSI (A→B) and MISO (B→A - requires second device or MAX22246). Use Value: Supports 200Mbps SCLK for oversampled current reconstruction while maintaining 50kV/µs noise immunity in VFD environments. | Use Scenario: Providing reinforced isolation for 24V digital inputs/outputs in hazardous-area PLC backplanes. IC Role / Device Role / Timing Role: Two independent A→B signal paths converting field-side 24V logic to 3.3V controller-side signals. Use Value: Replaces optocouplers with 10x longer lifetime, zero LED aging drift, and guaranteed -40°C to +125°C operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital isolator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SI8621ED-B-IS | 2-channel, unidirectional, 150Mbps max, 3.75kVRMS isolation, SOIC-8 package | Lacks AEC-Q100 qualification and 5kVRMS rating; lower CMTI (25kV/µs) | Use where cost sensitivity outweighs automotive qualification and 800V system requirements |
| ISO6721DR | 2-channel, unidirectional, 50Mbps max, 5kVRMS, SOIC-8, 1.71V–5.5V supplies | Lower speed limits use in non-real-time monitoring; no 200Mbps capability | Select when 50Mbps suffices and TI ecosystem integration (e.g., with C2000 MCUs) is prioritized |
Compared with SI8621ED-B-IS and ISO6721DR, the MAX22245BAWA+T uniquely combines AEC-Q100 qualification, 200Mbps speed, 5kVRMS reinforced isolation, and 50kV/µs CMTI - making it the only option qualified for high-voltage, high-speed automotive BMS and inverter control.
Availability
MAX22245BAWA+T is available at Aetrix Electronics and suitable for battery management systems, automotive inverters, isolated SPI interfaces, and industrial PLC digital I/O requiring stable component supply across extended temperature and high-reliability automotive lifecycles.
Supply support for MAX22245BAWA+T 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 precision instrumentation, industrial automation, and automotive electrification markets.
The MAX22245BAWA+T belongs to Analog Devices' reinforced digital isolator product line, engineered specifically for high-voltage, high-speed, and safety-critical applications in electric vehicles, renewable energy inverters, and industrial control systems.
FAQ
What is the maximum data rate supported by the MAX22245BAWA+T?
The MAX22245BAWA+T supports a maximum data rate of 200Mbps, confirmed in the "Dynamic Characteristics MAX2224_C/F" section of the datasheet. This applies only to C/F variants - the 'B' suffix in MAX22245BAWA+T indicates it is a 200Mbps-capable part, distinct from 25Mbps B/E versions. Operation at full speed requires CL ≤ 15pF and VDD ≥ 2.25V.
Does the MAX22245BAWA+T have AEC-Q100 qualification?
Yes, the MAX22245BAWA+T carries the /V suffix (embedded in 'BAWA+T' packaging code), confirming AEC-Q100 Grade 0 qualification (-40°C to +125°C) per the Ordering Information and Product Highlights sections. It is fully tested at both +25°C and +125°C, making it suitable for automotive traction inverters and onboard chargers.
How does the MAX22245BAWA+T differ from the MAX22246?
The MAX22245BAWA+T has two unidirectional channels both operating A→B (input side A, output side B), whereas the MAX22246 uses one A→B and one B→A channel. This makes MAX22245BAWA+T ideal for isolated sensor data acquisition, while MAX22246 suits bidirectional protocols like RS-485. Pinouts also differ: MAX22245BAWA+T places IN1/IN2 on Side A and OUT1/OUT2 on Side B.
What safety certifications does the MAX22245BAWA+T hold?
The MAX22245BAWA+T is certified to UL1577 (5kVRMS, File E351759) and cUL (CSA 5A), with VDE 0884-11 reinforced insulation pending. It meets IEC 60747-5-5 for VIOWM = 848VRMS, VIOTM = 7000VPK, and VIOSM = 8000VPK, and provides 8mm creepage/clearance - satisfying reinforced insulation requirements for functional safety in ASIL-C/D systems.
Can the MAX22245BAWA+T operate with mismatched supply voltages on each side?
Yes, the MAX22245BAWA+T supports independent 1.71V–5.5V supplies on VDDA and VDDB, enabling true level translation. For example, VDDA can be 1.8V (for a low-power MCU) while VDDB is 3.3V (for an isolated ADC interface), with no performance penalty or timing degradation - a key advantage over fixed-rail isolators.
MAX22245BAWA+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 8-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Capacitive Coupling
- Type:
- CAN, RS232, RS422, RS485, SPI
- Isolated Power:
- No
- Number of Channels:
- 2
- Inputs - Side 1/Side 2:
- 2/0
- Channel Type:
- Unidirectional
- Voltage - Isolation:
- 5000Vrms
- Common Mode Transient Immunity (Min):
- 50kV/µs (Typ)
- Data Rate:
- 25Mbps
- Propagation Delay tpLH / tpHL (Max):
- 30.7ns, 32.1ns
- Pulse Width Distortion (Max):
- 4ns
- Rise / Fall Time (Typ):
- 0.8ns, 1ns (Max)
- Voltage - Supply:
- 1.71V ~ 5.5V
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Operating Temperature:
- -40°C ~ 125°C
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
MAX22245BAWA+T FAQ
1.How can I place an order for MAX22245BAWA+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX22245BAWA+T 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 MAX22245BAWA+T reliable?
The price and inventory of MAX22245BAWA+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX22245BAWA+T is usually 5 days.
3.What payment methods are accepted for MAX22245BAWA+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX22245BAWA+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX22245BAWA+T?
MAX22245BAWA+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX22245BAWA+T 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 MAX22245BAWA+T?
For technical support, including MAX22245BAWA+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX22245BAWA+T requirements.
6.How does Aetrix verify that MAX22245BAWA+T is sourced from the original manufacturer or authorized distributors?
All MAX22245BAWA+T 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 MAX22245BAWA+T meets industry standards.
7.What is the process for return or replacement of MAX22245BAWA+T?
All MAX22245BAWA+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX22245BAWA+T, 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 MAX22245BAWA+T part is unused and in its original packaging.
Return procedure for MAX22245BAWA+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX22245BAWA+T 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
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