Analog Devices Inc./Maxim Integrated MAX22164FAEE+
- Part No.:
- MAX22164FAEE+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Digital Isolators
- Package:
- 16-SSOP (0.154", 3.90mm Width)
- Datasheet:
-
MAX22164FAEE+.pdf
- Description:
- 6 CHANNEL REINFORCED ISOLATOR
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
MAX22164FAEE+ from Analog Devices is a six-channel reinforced digital isolator with 4-channel A→B and 2-channel B→A unidirectional signal transfer, 200Mbps maximum data rate, 7ns typical propagation delay at 3.3V, 50kV/μs CMTI, and 3kVRMS isolation rating. It enables isolated SPI communication in automotive battery management systems.
For engineers reviewing the MAX22164FAEE+ datasheet, MAX22164FAEE+ pinout, MAX22164FAEE+ application, or MAX22164FAEE+ equivalent, this page delivers verified specifications, functional channel mapping, safety-certified insulation parameters, and real-world design context for high-reliability isolated interfaces.
Technical Context
The MAX22164FAEE+ implements reinforced galvanic isolation using Analog Devices' proprietary silicon process, supporting independent 1.71V–5.5V supplies on both sides (VDDA/GNDA and VDDB/GNDB) to enable level translation. Its 4:2 unidirectional channel configuration (IN1–IN4 → OUT1–OUT4; IN5–IN6 ← OUT5–OUT6) matches SPI master-slave signaling with dedicated bidirectional control paths.
It features undervoltage lockout (1.6V threshold), default-low outputs (E/F variant), refresh circuitry for indefinite DC input stability, and push-pull output drivers eliminating external pull-ups. Certified to UL1577 (3kVRMS), cUL, and pending VDE 0884-11 reinforced insulation, it withstands ±10kV surge (1.2/50μs) and operates from –40°C to +125°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Isolation Rating | 3kVRMS for 60s - meets reinforced insulation requirements for functional safety-critical automotive and industrial systems |
| Max Data Rate | 200Mbps - supports high-speed isolated SPI, RS-485, and digital I/O without timing bottlenecks |
| Propagation Delay | 7ns (typ) at VDD = 3.3V - enables sub-10ns system-level latency for real-time control loops |
| CMTI | 50kV/μs (typ) - ensures robust operation in noisy motor drive and inverter environments |
| Supply Range | 1.71V–5.5V per side - allows direct interfacing with 1.8V, 3.3V, and 5V logic domains without level shifters |
| Power @ 1Mbps | 0.71mW/channel @ 1.8V - reduces thermal load and extends battery life in portable BMS and EV chargers |
| Surge Withstand | ±10kV (1.2/50μs) between GNDA/GNDB - protects against lightning-induced transients in fieldbus applications |
Pinout & Package
Package: 16-pin QSOP with 4mm creepage and clearance, RoHS-compliant (E16MS+2 outline).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, VDDA | Side A power supply input | Bypass with 0.1µF capacitor to GNDA; sets logic-high level for IN1–IN4 and OUT1–OUT4 |
| 2–4, IN1–IN3 | Unidirectional inputs (A→B) | Drive corresponding OUT1–OUT3 on Side B; compatible with TTL/CMOS logic |
| 5, IN4 | Unidirectional input (A→B) | Drives OUT4 on Side B; completes 4-channel forward path for SPI MOSI, SCLK, CS, and auxiliary signals |
| 6–7, IN5–IN6 | Unidirectional inputs (B→A) | Drive OUT5–OUT6 on Side A; support SPI MISO and fault reporting feedback paths |
| 8, GNDA | Side A ground reference | Return path for VDDA and all Side A logic; must be isolated from GNDB by PCB layout |
| 9, GNDB | Side B ground reference | Return path for VDDB and all Side B logic; forms isolation barrier with GNDA |
| 10–11, OUT6–OUT5 | Unidirectional outputs (B→A) | Driven by IN6–IN5 on Side B; deliver isolated MISO and status signals to microcontroller |
| 12, OUT4 | Unidirectional output (A→B) | Driven by IN4 on Side A; provides fourth forward channel for extended SPI or GPIO |
| 13–15, OUT3–OUT1 | Unidirectional outputs (A→B) | Driven by IN3–IN1 on Side A; form primary SPI forward path (MOSI, SCLK, CS) |
| 16, VDDB | Side B power supply input | Bypass with 0.1µF capacitor to GNDB; sets logic-high level for IN5–IN6 and OUT5–OUT6 |
Key Features
| Feature | Design Value |
|---|---|
| Reinforced Isolation | 3kVRMS withstand (60s), 445VRMS working voltage, and VDE 0884-11 pending certification - enables single-barrier safety compliance in ASIL-B/C systems |
| Default-Low Output Logic | E/F variant asserts low state during power-up, undervoltage, or open-input conditions - prevents spurious activation of downstream MOSFETs or relays |
| Low-Power Operation | 0.71mW/channel @ 1Mbps/1.8V - cuts total isolation power to <5mW for six-channel designs, easing thermal management |
| High-Speed Timing Performance | 7ns propagation delay + 11.1ps RMS clock jitter - preserves signal integrity for 200MHz clock domains and tight setup/hold margins |
| Wide Supply Flexibility | Independent 1.71V–5.5V rails on both sides - eliminates external level translators when interfacing 1.8V MCU with 5V sensor or actuator circuits |
Applications
| Automotive Battery Management System (BMS) | Isolated SPI Interface |
|---|---|
Use Scenario: Isolating cell monitor ICs (e.g., MAX17852) from MCU host across high-voltage battery stack (up to 1000V). IC Role / Device Role / Timing Role: MAX22164FAEE+ provides 4-channel forward (MOSI, SCLK, CS, ALERT) and 2-channel reverse (MISO, FAULT) isolation with 200Mbps capability. Use Value: Enables real-time cell voltage/temperature sampling at >10ksps while blocking common-mode transients up to ±10kV. |
Use Scenario: SPI communication between isolated PLC controller and remote I/O modules in factory automation. IC Role / Device Role / Timing Role: Acts as full-duplex SPI isolator with dedicated MISO/MOSI paths and precise 7ns delay matching for deterministic timing. Use Value: Eliminates ground loops and EMI-induced bit errors in 24VDC industrial backplanes with >50kV/μs noise immunity. |
| EV Onboard Charger Control | Isolated Digital I/O Expansion |
Use Scenario: Isolating MCU control signals (PWM, enable, fault) from high-power SiC gate drivers and AC/DC converters. IC Role / Device Role / Timing Role: Provides 4-channel A→B isolation for PWM and control commands, plus 2-channel B→A for driver status and overcurrent flags. Use Value: Guarantees 3kVRMS reinforcement to meet IEC 62109 and UL 62368-1 requirements for Class II charger designs. |
Use Scenario: Expanding isolated GPIO count for medical patient monitoring devices requiring 6-channel digital signal separation. IC Role / Device Role / Timing Role: Delivers six independent, low-jitter digital channels with default-low safety state for critical alarm and sensor enable lines. Use Value: Reduces component count vs. discrete optocouplers while achieving <100ps jitter for synchronized multi-sensor acquisition. |
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; 20ns propagation delay; 3.75kVRMS isolation; 16-SOIC package | Lower speed suits legacy industrial fieldbus but insufficient for 200Mbps SPI or fast BMS sampling | Select when cost sensitivity outweighs speed needs and SOIC footprint is preferred over QSOP |
| ISO6760FDWER | 500Mbps max data rate; 11ns propagation delay; 5kVRMS isolation; 16-SOIC package; no default-low option | Higher speed and isolation margin ideal for next-gen EV inverters but lacks fail-safe default-low behavior | Choose for ultra-high-speed applications where output state during undervoltage must be externally managed |
Compared with Si8661ED-B-IS and ISO6760FDWER, the MAX22164FAEE+ uniquely balances 200Mbps performance, default-low safety logic, QSOP compactness, and AEC-Q100 readiness - making it optimal for automotive BMS and high-reliability industrial SPI isolation where deterministic fail-safe behavior is mandatory.
Availability
MAX22164FAEE+ is available at Aetrix Electronics and suitable for automotive battery management systems, isolated SPI interfaces, EV onboard charger control, and medical digital I/O expansion requiring stable component supply and long-term lifecycle assurance.
Supply support for MAX22164FAEE+ 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 instrumentation, industrial automation, automotive, and communications markets.
The MAX22163–MAX22166 family was designed specifically for reinforced isolation in safety-critical automotive and industrial systems, emphasizing low power, high CMTI, and flexible unidirectional channel configurations.
FAQ
What is the maximum data rate supported by the MAX22164FAEE+?
The MAX22164FAEE+ supports a maximum data rate of 200Mbps, verified under 2.25V–5.5V supply conditions. This enables high-speed isolated SPI, RS-485, and digital I/O applications where timing integrity is critical. The device maintains this rate across its full operating temperature range of –40°C to +125°C, with typical propagation delay of 7ns at 3.3V.
Does the MAX22164FAEE+ have default-high or default-low outputs?
The MAX22164FAEE+ features default-low outputs, as indicated by the "F" and "E" suffixes in its part number. During undervoltage conditions on either VDDA or VDDB, or when inputs are unpowered or floating, all outputs transition to a logic-low state - a critical safety feature for preventing unintended activation of downstream power stages or actuators.
What safety certifications does the MAX22164FAEE+ hold?
The MAX22164FAEE+ is certified to UL1577 (3000VRMS), cUL (CSA Bulletin 5A), and has pending VDE 0884-11 reinforced insulation approval. It meets reinforced isolation requirements with 3kVRMS withstand voltage for 60 seconds, 445VRMS working voltage, and ±10kV surge immunity (1.2/50μs), making it suitable for ASIL-B automotive systems and IEC 62109-compliant EV chargers.
Can the MAX22164FAEE+ be used for level translation between different logic voltages?
Yes, the MAX22164FAEE+ supports independent 1.71V–5.5V supplies on both sides (VDDA and VDDB), enabling seamless level translation. For example, it can interface a 1.8V microcontroller (VDDA = 1.8V) with a 5V sensor (VDDB = 5V) while maintaining galvanic isolation - eliminating the need for external level-shifting components in mixed-voltage systems.
What is the channel direction configuration of the MAX22164FAEE+?
The MAX22164FAEE+ has a 4:2 unidirectional channel configuration: four channels transmit from Side A to Side B (IN1–IN4 → OUT1–OUT4), and two channels transmit from Side B to Side A (IN5–IN6 → OUT5–OUT6). This matches standard isolated SPI implementations requiring MOSI/SCLK/CS/ALERT (forward) and MISO/FAULT (reverse) paths.
MAX22164FAEE+ 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:
- 4/2
- 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):
- 2ns
- 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:
- 16-QSOP
MAX22164FAEE+ FAQ
1.How can I place an order for MAX22164FAEE+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX22164FAEE+ 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 MAX22164FAEE+ reliable?
The price and inventory of MAX22164FAEE+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX22164FAEE+ is usually 5 days.
3.What payment methods are accepted for MAX22164FAEE+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX22164FAEE+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX22164FAEE+?
MAX22164FAEE+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX22164FAEE+ 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 MAX22164FAEE+?
For technical support, including MAX22164FAEE+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX22164FAEE+ requirements.
6.How does Aetrix verify that MAX22164FAEE+ is sourced from the original manufacturer or authorized distributors?
All MAX22164FAEE+ 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 MAX22164FAEE+ meets industry standards.
7.What is the process for return or replacement of MAX22164FAEE+?
All MAX22164FAEE+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX22164FAEE+, 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 MAX22164FAEE+ part is unused and in its original packaging.
Return procedure for MAX22164FAEE+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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