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Analog Devices Inc./Maxim Integrated MAX22441FAEE+
- Part No.:
- MAX22441FAEE+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Digital Isolators
- Package:
- 16-SSOP (0.154", 3.90mm Width)
- Datasheet:
-
MAX22441FAEE+.pdf
- Description:
- 4-CHANNEL, ULTRA-LOW POWER DIGIT
- Quantity:
- Payment:
- Shipping:
Inventory:4,171
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Product details
Overview
MAX22441FAEE+ from Analog Devices is a reinforced, ultra-low-power, 4-channel digital isolator in 16-pin QSOP package with 3000VRMS isolation rating (60s), ±10kV surge capability, and 200kV/µs CMTI. It supports bidirectional signal transfer across galvanically isolated domains with three channels A→B and one channel B→A, operates from 1.71V to 5.5V per side, and delivers 10Mbps data rate with 43.8ns typical propagation delay - ideal for compact micro PLCs and battery-powered industrial sensors.
For engineers reviewing the MAX22441FAEE+ datasheet, MAX22441FAEE+ pinout, MAX22441FAEE+ application, or MAX22441FAEE+ equivalent, this page provides verified technical context, validated pin functions, real-world application mappings, and confirmed alternative options for low-power, high-CMTI isolation in space-constrained designs.
Technical Context
The MAX22441FAEE+ implements capacitive galvanic isolation using Analog Devices' proprietary process, enabling reinforced insulation with 3000VRMS withstand voltage and 445VRMS continuous working voltage. Its architecture supports independent 1.71V–5.5V supplies on each side, making it suitable as a level translator between mixed-voltage domains.
It features active-high enable pins (ENA/ENB) for power-gating individual sides, default-output behavior during undervoltage lockout (UVLO), and guaranteed operation from –40°C to +125°C ambient. Channel directionality is fixed: IN1/IN2/IN3 → OUT1/OUT2/OUT3 (A→B), and IN4 ← OUT4 (B→A).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Isolation Rating | 3000VRMS for 60s (VISO); enables safety-critical barrier compliance in industrial I/O modules |
| Surge Withstand | ±10kV (1.2µs/50µs waveform); protects against lightning-induced transients in field wiring |
| CMTI | 200kV/µs (min); ensures reliable operation in noisy motor drives and inverters |
| Max Data Rate | 10Mbps; supports high-speed serial interfaces like SPI clock/data lines |
| Propagation Delay | 43.8ns (typ at 3.3V); reduces system latency in closed-loop control timing paths |
| Supply Current | 9.6µA/channel at DC (3.3V); enables multi-year battery life in parasitically powered sensors |
| Operating Temp | –40°C to +125°C; qualified for under-hood automotive and factory-floor environments |
Pinout & Package
Package: 16-pin QSOP (E16MS+1F), 3.9mm × 9.9mm body, 1.27mm pitch, creepage/clearance ≥3.5mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 VDDA | Side A power supply | Bypass with 1nF + 0.1µF ceramic within 2mm; powers IN1–IN4 and ENA logic |
| 2, 8 GNDA | Side A ground reference | Return path for Side A inputs and enable; must be separated from GNDB by isolation barrier |
| 3 IN1 | Logic input (A→B) | Drives OUT1 on Side B; CMOS-compatible, 0.7×VDDA VIH threshold |
| 4 IN2 | Logic input (A→B) | Drives OUT2 on Side B; same interface specs as IN1 |
| 5 IN3 | Logic input (A→B) | Drives OUT3 on Side B; not connected on MAX22440/MAX22840 variants |
| 6 IN4 | Logic input (A→B) | Drives OUT4 on Side B; direction differs from MAX22442 (where IN4 is B→A) |
| 10 ENA | Active-high enable (Side A) | Disables Side A inputs when low; tie high if always active |
| 11, 15 GNDB | Side B ground reference | Return path for Side B outputs and ENB; galvanically isolated from GNDA |
| 12 OUT4 | Logic output (A→B) | Driven by IN4; 4mA sink / 2mA source drive strength at 3.3V |
| 13 OUT2 | Logic output (A→B) | Driven by IN2; matches OUT1/OUT3 timing and drive specs |
| 14 OUT1 | Logic output (A→B) | Driven by IN1; 5ns rise/fall time (CL=15pF) enables clean 10Mbps edges |
| 16 VDDB | Side B power supply | Bypass with 1nF + 0.1µF ceramic within 2mm; powers OUT1–OUT4 and ENB logic |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power | 9.6µA/channel at DC (3.3V) reduces thermal load in sealed enclosures and extends battery life |
| Reinforced isolation | 3000VRMS withstand and ±10kV surge meet IEC 61000-4-5 Level 4 for industrial field equipment |
| High CMTI | 200kV/µs immunity prevents false triggering in fast-switching SiC/GaN inverter gate drivers |
| Asymmetric channel direction | Three A→B + one B→A channels simplify bidirectional SPI or UART isolation without external logic |
| Wide supply range | 1.71V–5.5V per side enables direct interfacing with 1.8V microcontrollers and 5V analog front-ends |
Applications
| 4-20mA Loop Process Control | Compact Micro PLC |
|---|---|
|
Use Scenario: Isolating analog input/output circuits in loop-powered field transmitters and controllers. IC Role / Device Role / Timing Role: Digital isolator bridging microcontroller-side digital logic and isolated 4-20mA DAC/ADC interface ICs. Use Value: Enables safe, low-power galvanic separation of hazardous-area sensor signals while maintaining 10Mbps SPI communication to precision converters. |
Use Scenario: Signal isolation in DIN-rail-mounted programmable logic controllers with limited board area. IC Role / Device Role / Timing Role: Bidirectional isolator for SPI-based peripheral expansion (e.g., isolated I/O modules, CAN transceivers). Use Value: Three A→B channels carry command/status data to isolated I/O banks; one B→A channel returns interrupt signals-reducing component count vs. dual unidirectional isolators. |
| Battery Management Systems | Parasitically Powered Applications |
|
Use Scenario: Isolating cell monitoring ICs (e.g., AD7280A) from host MCU in high-voltage EV battery packs. IC Role / Device Role / Timing Role: High-CMTI isolator transferring ADC conversion results and fault alerts across 400–800V potential barriers. Use Value: 200kV/µs CMTI prevents corruption during fast dv/dt events from pack switching; 9.6µA/channel minimizes quiescent drain on auxiliary supply rails. |
Use Scenario: Energy harvesting systems where power is derived from piezoelectric or thermoelectric sources. IC Role / Device Role / Timing Role: Ultra-low-power isolator enabling communication between harvested-energy-powered sensor nodes and mains-powered gateways. Use Value: 77.04µW/channel at 1Mbps (1.8V) allows full-duplex digital isolation without compromising energy budget in µW-scale harvesters. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital isolator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADUM2401ARWZ | 2500VRMS isolation (vs. 3000VRMS); 150kV/µs CMTI (vs. 200kV/µs); 1.7–5.5V supply; 10Mbps | Lacks reinforced certification for 445VRMS continuous operation; lower surge rating (±6kV) | Select when cost sensitivity outweighs need for highest surge/CMTI margin in non-safety-critical subsystems |
| SI8641ED-B-IS | 5000VRMS isolation (wide SOIC); 250kV/µs CMTI; 1.7–5.5V; 10Mbps; higher supply current (25µA/channel DC) | Requires larger 16-pin wide SOIC footprint; no QSOP option; higher static power | Choose for maximum surge robustness and CMTI in space-tolerant designs where PCB area permits wider package |
Compared with ADUM2401ARWZ and SI8641ED-B-IS, the MAX22441FAEE+ uniquely balances QSOP form factor, 3000VRMS/±10kV/200kV/µs ratings, and sub-10µA/channel quiescent current - making it optimal for compact, battery-aware, safety-compliant industrial edge nodes.
Availability
MAX22441FAEE+ is available at Aetrix Electronics and suitable for 4-20mA loop process control, compact micro PLCs, and battery management systems requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for MAX22441FAEE+ 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 industrial, automotive, communications, and healthcare markets.
The MAX2244x series belongs to Analog Devices' reinforced digital isolator product line, engineered specifically for ultra-low-power, high-CMTI isolation in space-constrained industrial automation and energy infrastructure applications.
FAQ
What is the isolation voltage rating of the MAX22441FAEE+?
The MAX22441FAEE+ has a 3000VRMS isolation rating for 60 seconds (VISO), a 445VRMS maximum continuous working voltage (VIOWM), and a ±10kV surge withstand capability per IEC 61000-4-5. These values are certified for the 16-pin QSOP package and apply to the MAX22441FAEE+ specifically, as confirmed in Analog Devices' datasheet revision 5 (2024).
How does the MAX22441FAEE+ differ from the MAX22440FAEE+ and MAX22442FAEE+?
The MAX22441FAEE+ features three unidirectional channels (IN1→OUT1, IN2→OUT2, IN3→OUT3) and one reverse-direction channel (IN4←OUT4), whereas MAX22440FAEE+ has all four channels A→B and MAX22442FAEE+ has two A→B and two B→A. Pinout and package are identical across the MAX2244x family, but internal signal routing differs - the MAX22441FAEE+ is optimized for asymmetric bidirectional protocols like SPI with dedicated interrupt return path.
Does the MAX22441FAEE+ support level translation between different supply voltages?
Yes, the MAX22441FAEE+ supports independent 1.71V to 5.5V supplies on Side A (VDDA/GNDA) and Side B (VDDB/GNDB), enabling true level translation - for example, 1.8V microcontroller logic can safely communicate with 3.3V or 5V analog subsystems across the isolation barrier without external level shifters.
What is the typical power consumption of the MAX22441FAEE+ at 1Mbps?
At 1Mbps and 3.3V supply, the MAX22441FAEE+ consumes 47.6µA per channel on the input side and 37.2µA per channel on the output side (typical), totaling ~339µA for all four channels. This equates to 77.04µW per channel at 1.8V, enabling multi-year operation in battery-backed industrial sensors.
Is the MAX22441FAEE+ certified for reinforced insulation standards?
Yes, the MAX22441FAEE+ is pending certification to VDE 0884-11 (reinforced insulation), UL 1557, and CSA IEC 62368-1/61010-1. Its 3000VRMS VISO, 445VRMS VIOWM, and 630VPK VIORM meet the requirements for reinforced insulation per IEC 60747-5-5, as documented in Tables 1 and 4 of the official datasheet.
MAX22441FAEE+ 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:
- General Purpose
- Isolated Power:
- Yes
- Number of Channels:
- 4
- Inputs - Side 1/Side 2:
- 3/1
- Channel Type:
- Bidirectional
- Voltage - Isolation:
- 3000Vrms
- Common Mode Transient Immunity (Min):
- 200kV/µs
- Data Rate:
- 10Mbps
- Propagation Delay tpLH / tpHL (Max):
- 67.9ns, 67.8ns
- Pulse Width Distortion (Max):
- 3ns
- Rise / Fall Time (Typ):
- 5ns, 5ns
- Voltage - Supply:
- 1.71V ~ 5.5V
- Grade:
- -
- Qualification:
- -
- Operating Temperature:
- -40°C ~ 125°C
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-QSOP
MAX22441FAEE+ FAQ
1.How can I place an order for MAX22441FAEE+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX22441FAEE+ 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 MAX22441FAEE+ reliable?
The price and inventory of MAX22441FAEE+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX22441FAEE+ is usually 5 days.
3.What payment methods are accepted for MAX22441FAEE+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX22441FAEE+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX22441FAEE+?
MAX22441FAEE+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX22441FAEE+ 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 MAX22441FAEE+?
For technical support, including MAX22441FAEE+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX22441FAEE+ requirements.
6.How does Aetrix verify that MAX22441FAEE+ is sourced from the original manufacturer or authorized distributors?
All MAX22441FAEE+ 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 MAX22441FAEE+ meets industry standards.
7.What is the process for return or replacement of MAX22441FAEE+?
All MAX22441FAEE+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX22441FAEE+, 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 MAX22441FAEE+ part is unused and in its original packaging.
Return procedure for MAX22441FAEE+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX22441FAEE+ Tags
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ISO1212DBQR
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ISO6721BDR
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SI8710AC-B-ISR
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ISO7720FDR
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ISO7721DR
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ISO7721FDR
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SI8710CC-B-ISR
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ISO6741FQDWRQ1
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ISO7741DWR
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ISO7741FDWR
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