Analog Devices Inc./Maxim Integrated MAX22165FAEE+
- Part No.:
- MAX22165FAEE+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Digital Isolators
- Package:
- 16-SSOP (0.154", 3.90mm Width)
- Datasheet:
-
MAX22165FAEE+.pdf
- Description:
- 6 CHANNEL REINFORCED ISOLATOR
- Quantity:
- Payment:

- Shipping:

Inventory:339
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Product details
Overview
MAX22165FAEE+ from Analog Devices is a six-channel reinforced digital isolator with five unidirectional channels (A→B) and one reverse-direction channel (B→A), rated for 3kVRMS isolation, 200Mbps max data rate, and operation from -40°C to +125°C. It enables isolated SPI, digital I/O, and BMS signal transfer in automotive battery management systems.
For engineers reviewing the MAX22165FAEE+ datasheet, MAX22165FAEE+ pinout, MAX22165FAEE+ application, or MAX22165FAEE+ equivalent, key selection criteria include its CMTI of 50kV/μs, 7ns typical propagation delay at 3.3V, 1.34mW/channel power at 1Mbps/3.3V, and AEC-Q100 qualification for automotive use.
Technical Context
The MAX22165FAEE+ implements capacitive galvanic isolation using Analog Devices' proprietary process, supporting independent 1.71V–5.5V supplies on both sides for level-shifting functionality. Its architecture includes a refresh circuit ensuring output stability during static input conditions.
It features push-pull outputs eliminating external pull-ups, undervoltage lockout (1.6V threshold) forcing default-low outputs during supply faults, and robust ESD protection (±4kV HBM, ±6kV IEC 61000-4-2 contact).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Isolation Rating | 3kVRMS for 60s - meets reinforced insulation requirements per IEC 60747-5-5 and UL1577 |
| Max Data Rate | 200Mbps - supports high-speed isolated SPI and digital bus interfaces |
| CMTI | 50kV/μs (typ) - ensures reliable operation in noisy motor control and inverter environments |
| Propagation Delay | 7ns (typ) at VDD = 3.3V - minimizes system latency in real-time control loops |
| Supply Range | 1.71V to 5.5V per side - enables direct interfacing with 1.8V, 3.3V, and 5V logic domains |
| Power @ 1Mbps | 1.34mW per channel at 3.3V - reduces thermal load and extends battery life in portable BMS |
| Default Output State | Low - ensures safe de-asserted state during power-up or open-circuit inputs |
Pinout & Package
Package: 16-pin QSOP (E16MS+2), 4mm creepage and clearance, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDA | Side A power supply | 1.71V–5.5V input referenced to GNDA; requires local 0.1µF bypass |
| IN1–IN3 | Unidirectional inputs (A→B) | Drive corresponding OUT1–OUT3 on Side B; TTL/CMOS compatible |
| IN4–IN6 | Bidirectional-capable inputs | IN4/IN5/IN6 map to OUT4/OUT5/OUT6 on opposite side (A↔B configurable per variant) |
| OUT1–OUT3 | Unidirectional outputs (A→B) | Push-pull, no external pull-up needed; default-low during UVLO |
| OUT4–OUT6 | Bidirectional-capable outputs | OUT4/OUT5/OUT6 correspond to IN4/IN5/IN6 on opposite side |
| GNDA / GNDB | Isolated ground references | Separate ground domains enable voltage domain bridging and noise rejection |
| VDDB | Side B power supply | 1.71V–5.5V input referenced to GNDB; requires local 0.1µF bypass |
Key Features
| Feature | Design Value |
|---|---|
| Reinforced Isolation | 3kVRMS withstand, 445VRMS working voltage (VIOWM), certified to UL1577 and cUL CSA 5A |
| AEC-Q100 Qualified | Rated for automotive applications (-40°C to +125°C ambient); /V suffix denotes qualification |
| High-Speed Performance | 200Mbps max data rate with 7ns typ propagation delay and 11.1ps RMS clock jitter |
| Low-Power Operation | 0.71mW/channel at 1Mbps/1.8V - enables compact, thermally constrained designs |
| Robust Transient Immunity | Withstands ±10kV surge (1.2/50μs) between GNDA/GNDB and 50kV/μs CMTI |
Applications
| Battery Management System (BMS) | Isolated SPI Interface |
|---|---|
Use Scenario: Signal isolation between MCU and cell monitor ICs in EV traction battery packs. IC Role / Device Role / Timing Role: Six-channel isolator transferring voltage/current/temperature telemetry and control commands across high-voltage barriers. Use Value: Enables reinforced safety compliance (IEC 61851, ISO 6469) while supporting 200Mbps telemetry updates for fast fault response. | Use Scenario: Isolating SPI master (MCU) from slave peripherals (ADCs, DACs, sensors) in industrial PLCs. IC Role / Device Role / Timing Role: Provides five A→B channels for MOSI, SCLK, CS, and two GPIOs, plus one B→A channel for MISO. Use Value: Eliminates ground loops and noise coupling without sacrificing timing integrity-7ns delay preserves setup/hold margins at 50MHz SCLK. |
| Automotive Inverter Control | Digital I/O Isolation |
Use Scenario: Gate driver signal isolation in 400V/800V traction inverters with SiC MOSFETs. IC Role / Device Role / Timing Role: Delivers PWM and fault feedback signals across isolation barrier with <2ns pulse width distortion. Use Value: 50kV/μs CMTI prevents false triggering during fast dv/dt switching transients (≥50V/ns). | Use Scenario: Isolating 24V field I/O signals (limit switches, solenoid controls) from 3.3V microcontroller logic. IC Role / Device Role / Timing Role: Five A→B channels carry command outputs; one B→A channel returns status feedback. Use Value: Dual-supply flexibility (1.8V–5.5V) allows direct interface to both low-voltage MCUs and industrial-level sensors. |
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; 2.5kVRMS isolation; 3.75mm creepage | Lower speed and isolation rating; suited for non-safety-critical industrial I/O | Select when cost sensitivity outweighs need for 200Mbps or automotive qualification |
| ISO6761QDWR | 6-channel, 50Mbps, 5000VRMS reinforced, but no AEC-Q100 qualification | Lacks automotive qualification; higher isolation voltage but lower speed than MAX22165FAEE+ | Prefer for high-isolation industrial systems where AEC-Q100 is not required |
Compared with SI8661ED-B-IS and ISO6761QDWR, the MAX22165FAEE+ uniquely combines AEC-Q100 qualification, 200Mbps speed, and 3kVRMS reinforced isolation in a 16-QSOP package-making it optimal for automotive BMS and high-performance inverter control where timing, safety, and reliability are co-constrained.
Availability
MAX22165FAEE+ is available at Aetrix Electronics and suitable for battery management systems, isolated SPI interfaces, and automotive inverter control requiring stable component supply and long-term lifecycle support.
Supply support for MAX22165FAEE+ 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 semiconductors, serving precision, industrial, automotive, and communications markets.
The MAX22163–MAX22166 family was designed specifically for high-reliability, high-speed digital isolation in automotive and industrial systems demanding reinforced safety, low power, and wide supply voltage range.
FAQ
What is the maximum data rate supported by the MAX22165FAEE+?
The MAX22165FAEE+ supports a maximum data rate of 200Mbps, verified under 2.25V–5.5V supply conditions. This performance enables high-speed isolated communication such as SPI at 50MHz SCLK with sufficient timing margin. The device maintains this rate across its full operating temperature range (-40°C to +125°C) and is specified with 7ns typical propagation delay at 3.3V.
Does the MAX22165FAEE+ meet automotive qualification standards?
Yes, the MAX22165FAEE+ is AEC-Q100 qualified (Grade 0, -40°C to +125°C). Its /V suffix confirms automotive qualification, and it is certified to UL1577 and cUL CSA Bulletin 5A for 3kVRMS reinforced isolation. These qualifications make MAX22165FAEE+ suitable for battery management systems and inverter control in hybrid and electric vehicles.
How does the MAX22165FAEE+ handle undervoltage conditions on its power supplies?
The MAX22165FAEE+ monitors both VDDA and VDDB for undervoltage events using an internal lockout circuit with 1.6V threshold and 45mV hysteresis. When either supply drops below the threshold, all outputs transition to their default-low state regardless of input states-ensuring fail-safe behavior in automotive power systems experiencing brownouts or startup sequencing delays.
What is the isolation barrier specification for the MAX22165FAEE+?
The MAX22165FAEE+ provides reinforced galvanic isolation rated at 3kVRMS for 60 seconds (VISO), 445VRMS continuous working voltage (VIOWM), and ±10kV surge capability (1.2/50μs waveform). It meets IEC 60747-5-5, UL1577, and CSA Bulletin 5A standards, with pending VDE 0884-11 certification for reinforced insulation.
Can the MAX22165FAEE+ be used for level translation between different logic voltages?
Yes, the MAX22165FAEE+ supports independent 1.71V–5.5V supplies on Side A (VDDA/GNDA) and Side B (VDDB/GNDB), enabling bidirectional level translation. For example, it can interface a 1.8V FPGA I/O bank with a 3.3V microcontroller peripheral while maintaining signal integrity and isolation-without external level shifters or pull resistors due to its push-pull outputs.
MAX22165FAEE+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 16-SSOP (0.154", 3.90mm 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:
- 5/1
- Channel Type:
- Unidirectional
- Voltage - Isolation:
- 3000Vrms
- Common Mode Transient Immunity (Min):
- 50kV/µs (Typ)
- Data Rate:
- 200Mbps
- Propagation Delay tpLH / tpHL (Max):
- 9.5ns, 9.9ns
- Pulse Width Distortion (Max):
- 5ns
- 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-QSOP
MAX22165FAEE+ FAQ
1.How can I place an order for MAX22165FAEE+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX22165FAEE+ 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 MAX22165FAEE+ reliable?
The price and inventory of MAX22165FAEE+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX22165FAEE+ is usually 5 days.
3.What payment methods are accepted for MAX22165FAEE+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX22165FAEE+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX22165FAEE+?
MAX22165FAEE+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX22165FAEE+ 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 MAX22165FAEE+?
For technical support, including MAX22165FAEE+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX22165FAEE+ requirements.
6.How does Aetrix verify that MAX22165FAEE+ is sourced from the original manufacturer or authorized distributors?
All MAX22165FAEE+ 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 MAX22165FAEE+ meets industry standards.
7.What is the process for return or replacement of MAX22165FAEE+?
All MAX22165FAEE+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX22165FAEE+, 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 MAX22165FAEE+ part is unused and in its original packaging.
Return procedure for MAX22165FAEE+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX22165FAEE+ Tags
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