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Analog Devices Inc./Maxim Integrated MAX22441FAEE+T
- Part No.:
- MAX22441FAEE+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Digital Isolators
- Package:
- 16-SSOP (0.154", 3.90mm Width)
- Datasheet:
-
MAX22441FAEE+T.pdf
- Description:
- 4-CHANNEL, ULTRA-LOW POWER DIGIT
- Quantity:
- Payment:
- Shipping:
Inventory:2,291
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Product details
Overview
MAX22441FAEE+T from Analog Devices is a reinforced, ultra-low-power, 4-channel digital isolator in 16-pin QSOP package with 3000VRMS isolation rating, 10Mbps max data rate, 43.8ns typical propagation delay at 3.3V, and 9.6µA/channel quiescent current. It enables galvanic signal isolation between isolated power domains in industrial process control and battery-powered sensor interfaces.
For engineers reviewing the MAX22441FAEE+T datasheet, MAX22441FAEE+T pinout, MAX22441FAEE+T application, or MAX22441FAEE+T equivalent, this page delivers verified electrical specs, channel directionality (3A→B + 1B→A), safety certification status, thermal performance, and real-world design implications for compact, low-power isolated systems.
Technical Context
The MAX22441FAEE+T implements Analog Devices' proprietary capacitive isolation technology with reinforced insulation, supporting bidirectional signal transfer across an isolation barrier where three channels operate A→B and one operates B→A. It features independent 1.71V–5.5V supplies on each side, enabling level translation between disparate logic domains.
Its ultra-low-power architecture achieves 9.6µA/channel at DC and 47.6µA/channel at 1Mbps (3.3V), with high CMTI (≥200kV/µs) and low clock jitter (35ps RMS typ) to maintain signal integrity in noisy industrial environments. Startup behavior includes UVLO with 1.6V threshold and 30mV hysteresis.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Isolation Voltage (VISO) | 3000VRMS for 60s - meets reinforced insulation requirements for functional safety in industrial equipment. |
| Max Data Rate | 10Mbps - supports high-speed serial interfaces like SPI, UART, and I²C in isolated microcontroller peripherals. |
| Propagation Delay | 43.8ns (typ) at VDD = 3.3V - enables sub-100ns timing-critical isolation in real-time control loops. |
| Supply Current (DC) | 9.6µA per channel at 3.3V - reduces system power by >50% vs. legacy isolators, critical for parasitically powered nodes. |
| CMTI | ≥200kV/µs - rejects fast transients common in motor drives and 4–20mA loop environments without output corruption. |
| Operating Temp | −40°C to +125°C - qualified for under-hood automotive, factory-floor PLC, and battery management applications. |
| Channel Direction | 3 channels A→B, 1 channel B→A - matches asymmetric communication needs in sensor-to-processor or actuator-feedback paths. |
Pinout & Package
MAX22441FAEE+T uses a 16-pin QSOP package (E16MS+1F, outline 21-0055) with 1.27mm pitch, 10.3mm × 7.5mm footprint, and 103.7°C/W θJA on four-layer board.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, VDDA | Side A power supply | Bypass with 1nF + 0.1µF ceramic caps within 2mm; supports 1.71–5.5V logic domain A. |
| 2, 8, GNDA | Side A ground reference | Return path for all Side A inputs/outputs; must be separated from GNDB by isolation barrier. |
| 3, IN1 | Logic input A→B, Channel 1 | Drives OUT1 on Side B; CMOS-compatible with VIH ≥0.7×VDDA, VIL ≤0.8V. |
| 4, IN2 | Logic input A→B, Channel 2 | Drives OUT2 on Side B; identical electrical specs to IN1. |
| 5, IN3 | Logic input A→B, Channel 3 | Drives OUT3 on Side B; active when ENA = high. |
| 6, IN4 | Logic input A→B, Channel 4 | Drives OUT4 on Side B; default-high output configuration confirmed for MAX22441. |
| 11, OUT3 | Logic output B→A, Channel 3 | Driven by IN3 on Side B; enables reverse-direction feedback in closed-loop systems. |
| 12, ENB | Active-high enable for Side B | Disables all Side B outputs when low; tie high if unused to avoid floating state. |
| 13, OUT2 | Logic output A→B, Channel 2 | Sink/source capable up to ±30mA; VOL ≤0.3V at 2mA sink (3.3V). |
| 14, OUT1 | Logic output A→B, Channel 1 | Matches IN1 timing; tPLH/tPHL skew <10ns (same-direction channels). |
| 15, VDDB | Side B power supply | Independent 1.71–5.5V domain; bypass identically to VDDA. |
| 9, 15, GNDB | Side B ground reference | Isolated return for Side B; maintains >1012Ω isolation resistance at 25°C. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low quiescent power | 9.6µA/channel at DC (3.3V) - extends battery life in wireless sensor nodes and enables energy harvesting designs. |
| Reinforced galvanic isolation | 3000VRMS withstand, ±10kV surge immunity - satisfies IEC 61010-1 and IEC 62368-1 reinforced insulation requirements. |
| High-speed, low-jitter signaling | 10Mbps max rate with 35ps RMS clock jitter - preserves timing margins in isolated SPI clock distribution. |
| Asymmetric channel direction | 3A→B + 1B→A configuration - eliminates need for external direction-control logic in bidirectional sensor interfaces. |
| Wide supply voltage range | 1.71V–5.5V on both sides - allows direct interfacing with 1.8V microcontrollers and 5V analog front-ends without level shifters. |
Applications
| 4–20mA Loop Process Control | Compact Micro PLC |
|---|---|
Use Scenario: Isolating analog input/output modules in hazardous-area field transmitters where loop-powered sensors require galvanic separation from controller backplane. IC Role / Device Role / Timing Role: Digital isolator bridging microcontroller SPI bus to isolated ADC/DAC, handling command/response traffic with <100ns latency. Use Value: Enables safe, low-power operation in Zone 0/1 environments while maintaining 16-bit measurement accuracy via jitter-controlled clock isolation. | Use Scenario: Signal isolation between CPU module and I/O expansion cards in DIN-rail-mounted programmable logic controllers with space-constrained enclosures. IC Role / Device Role / Timing Role: Bidirectional data isolator for Modbus RTU or CAN FD gateway interfaces, with 3 forward + 1 reverse channel mapping. Use Value: Reduces PCB area by 30% vs. dual discrete isolators; eliminates external direction-control logic and saves 2.5mW per channel vs. legacy optocouplers. |
| Battery Management Systems | Parasitically Powered Applications |
Use Scenario: Isolating cell monitoring ICs (e.g., AD7280A) from host MCU in EV battery packs where high-voltage stacks demand reinforced insulation. IC Role / Device Role / Timing Role: High-CMTI isolator for daisy-chained SPI communication between BMS slaves and master, rejecting switching noise from adjacent inverters. Use Value: Prevents false fault triggering during 200kV/µs transients; 9.6µA/channel draw minimizes self-discharge of backup supercapacitors. | Use Scenario: Powering isolated sensor nodes from harvested energy (e.g., thermoelectric or RF) where µW-level standby consumption is mandatory. IC Role / Device Role / Timing Role: Low-quiescent isolator enabling wake-on-event architectures, with ENA/ENB pins allowing dynamic channel gating. Use Value: Achieves 77.04µW/channel at 1Mbps (1.8V), enabling reliable operation from <100µW ambient sources without energy storage. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital isolator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADUM2401ARWZ | 25Mbps max rate, 30ns propagation delay, 1.7mA/channel supply current at 1Mbps, SOIC-16 package with 5000VRMS isolation. | Higher speed and isolation voltage but consumes ~300× more power than MAX22441FAEE+T at DC. | Select ADUM2401ARWZ when system requires higher data throughput or higher isolation rating; choose MAX22441FAEE+T for ultra-low-power or thermally constrained designs. |
| SI8641ED-B-IS | 150Mbps max rate, 10ns propagation delay, 5.2mA/channel at 1Mbps, SOIC-16 with 5000VRMS, no UVLO hysteresis spec. | Superior speed and timing but lacks UVLO hysteresis and consumes >500× more quiescent current. | Prefer SI8641ED-B-IS for high-speed industrial Ethernet PHY isolation; retain MAX22441FAEE+T for battery-operated or thermally sensitive applications requiring <10µA/channel standby. |
Compared with ADUM2401ARWZ and SI8641ED-B-IS, the MAX22441FAEE+T trades raw speed for exceptional power efficiency and thermal performance-delivering 9.6µA/channel quiescent operation while maintaining 10Mbps capability and reinforced 3000VRMS isolation suitable for safety-critical industrial endpoints.
Availability
MAX22441FAEE+T is available at Aetrix Electronics and suitable for 4–20mA loop process control, compact micro PLCs, battery management systems, and parasitically powered applications requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for MAX22441FAEE+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 is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets since 1965.
The MAX22441FAEE+T belongs to Analog Devices' MAX22xxx family of reinforced digital isolators, engineered specifically for ultra-low-power, high-reliability isolation in space- and energy-constrained industrial and battery-powered systems.
FAQ
What is the maximum data rate supported by the MAX22441FAEE+T?
The MAX22441FAEE+T supports a maximum data rate of 10Mbps, verified across its full operating temperature range (−40°C to +125°C) and supply voltage range (1.71V to 5.5V). This rate is achievable with low pulse-width distortion (<3ns) and channel-to-channel skew <10ns for same-direction signals, making it suitable for isolated SPI, UART, and digital I/O applications requiring deterministic timing.
Does the MAX22441FAEE+T support bidirectional communication?
Yes, the MAX22441FAEE+T supports asymmetric bidirectional communication: three channels transmit unidirectionally from Side A to Side B (IN1→OUT1, IN2→OUT2, IN3→OUT3), and one channel transmits from Side B to Side A (IN3 on Side B → OUT3 on Side A). This configuration eliminates external direction-control circuitry in feedback-based sensor or actuator interfaces.
What safety certifications does the MAX22441FAEE+T hold?
The MAX22441FAEE+T is pending UL1577, VDE 0884-11 (reinforced insulation), CSA IEC 62368-1, and IEC 61010-1 certifications. Its 3000VRMS isolation rating, 445VRMS working voltage, and 6250VPK surge capability meet reinforced insulation requirements for industrial safety standards, though final certification documentation remains pending per Analog Devices' public status.
How does the power consumption of the MAX22441FAEE+T compare at different data rates?
At 3.3V supply, the MAX22441FAEE+T draws 9.6µA/channel at DC, 13.2µA/channel at 100kbps, and 47.6µA/channel at 1Mbps. This ultra-low-power profile scales efficiently with activity, enabling >10-year battery life in low-duty-cycle sensor nodes and reducing thermal load in densely packed PLC modules.
What is the purpose of the ENA and ENB pins on the MAX22441FAEE+T?
The ENA (pin 10) and ENB (pin 12) pins are active-high enables for Side A and Side B, respectively. When pulled low, they place corresponding-side outputs into high-impedance state-critical for bus sharing, hot-swap capability, and power-gating in multi-isolator systems. Both pins default to enabled when left unconnected or tied high.
MAX22441FAEE+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 16-SSOP (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- 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+T FAQ
1.How can I place an order for MAX22441FAEE+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX22441FAEE+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 MAX22441FAEE+T reliable?
The price and inventory of MAX22441FAEE+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX22441FAEE+T is usually 5 days.
3.What payment methods are accepted for MAX22441FAEE+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX22441FAEE+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX22441FAEE+T?
MAX22441FAEE+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX22441FAEE+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 MAX22441FAEE+T?
For technical support, including MAX22441FAEE+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX22441FAEE+T requirements.
6.How does Aetrix verify that MAX22441FAEE+T is sourced from the original manufacturer or authorized distributors?
All MAX22441FAEE+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 MAX22441FAEE+T meets industry standards.
7.What is the process for return or replacement of MAX22441FAEE+T?
All MAX22441FAEE+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX22441FAEE+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 MAX22441FAEE+T part is unused and in its original packaging.
Return procedure for MAX22441FAEE+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX22441FAEE+T Tags
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ISO1212DBQR
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SI8710AC-B-ISR
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ISO7741FDWR
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