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Analog Devices Inc./Maxim Integrated MAX22841CAWE+T
- Part No.:
- MAX22841CAWE+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Digital Isolators
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
MAX22841CAWE+T.pdf
- Description:
- 4-CHANNEL, ULTRA-LOW POWER DIGIT
- Quantity:
- Payment:
- Shipping:
Inventory:3,062
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Product details
Overview
MAX22841CAWE+T from Analog Devices is a reinforced, ultra-low-power, 4-channel digital isolator in a 16-pin wide SOIC package (W16MS+12A), providing 5000VRMS isolation for 60 seconds and 848VRMS continuous working voltage. It features bidirectional channel configuration (3 channels A→B, 1 channel B→A), 10Mbps max data rate, 43.8ns typical propagation delay at 3.3V, and consumes only 13.0µA per channel at DC (3.3V). It enables robust signal isolation in battery-powered industrial I/O modules.
For engineers reviewing the MAX22841CAWE+T datasheet, MAX22841CAWE+T pinout, MAX22841CAWE+T application, or MAX22841CAWE+T equivalent, key selection criteria include its reinforced 5kVRMS isolation rating, ultra-low 13µA/channel quiescent current at 3.3V, asymmetric 3:1 channel directionality, and compatibility with 1.71–5.5V dual supplies for level translation in compact PLCs and 4–20mA loop interfaces.
Technical Context
The MAX22841CAWE+T implements capacitive galvanic isolation using Analog Devices' proprietary process, supporting independent 1.71–5.5V supplies on each side to serve as both isolator and level translator. Its 3-channel A→B + 1-channel B→A topology is fixed per device variant and not configurable via pins or registers.
It achieves 200kV/µs minimum common-mode transient immunity (CMTI) and maintains signal integrity with 35ps RMS clock jitter and <10ns channel-to-channel skew for same-direction signals-critical for synchronized sensor data acquisition across isolated domains.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Isolation Rating | 5000VRMS for 60s (VISO); enables compliance with reinforced insulation requirements in industrial safety standards |
| Continuous Working Voltage | 848VRMS (VIOWM); supports long-term operation in high-voltage motor drives and grid-connected equipment |
| Max Data Rate | 10Mbps; sufficient for real-time digital feedback in servo controllers and fast ADC/DAC interfaces |
| Propagation Delay | 43.8ns typical at 3.3V; ensures sub-50ns latency for time-critical control loops |
| Supply Current (DC) | 13.0µA per channel at VDD = 3.3V; enables multi-year battery life in parasitically powered field transmitters |
| CMTI | ≥200kV/µs; prevents false triggering during fast-switching events in inverters and power converters |
| Operating Temp | −40°C to +125°C; qualified for under-hood automotive and industrial ambient environments |
Pinout & Package
Package: 16-pin wide SOIC (W16MS+12A), 10.3mm × 7.5mm body, 1.27mm pitch, creepage/clearance ≥8mm, reinforced insulation barrier.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 16 | VDDA / VDDB | Independent power supplies for isolated sides; require local 0.1µF + 1nF bypassing within 2mm |
| 2, 8 / 9, 15 | GNDA / GNDB | Separate ground references per side; no direct connection permitted across isolation barrier |
| 3, 4, 5, 11 | IN1–IN4 | Logic inputs: IN1–IN3 on Side A, IN4 on Side B; all accept 1.71–5.5V logic levels |
| 14, 13, 12, 6 | OUT1–OUT4 | Logic outputs: OUT1–OUT3 on Side B, OUT4 on Side A; 3.3V/5V-compatible push-pull drivers |
| 10, 7 | ENA / ENB | Active-high enable controls output drivers; default-high behavior when tied high or left floating |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low power | 13.0µA/channel at DC (3.3V) reduces thermal load and extends battery life in portable diagnostics tools |
| Reinforced isolation | 5000VRMS/60s and 848VRMS VIOWM meet IEC 61010-1 and IEC 62368-1 reinforced insulation requirements |
| Asymmetric channel direction | 3 A→B + 1 B→A channels support master-slave communication with status feedback in single-package I/O isolators |
| High CMTI | 200kV/µs minimum immunity prevents data corruption in noisy motor drive and solar inverter environments |
| Wide supply range | 1.71–5.5V per side enables direct interface with 1.8V microcontrollers and 5V legacy peripherals without level shifters |
Applications
| 4–20mA Loop Process Control | Compact Micro PLC |
|---|---|
Use Scenario: Isolating analog input/output circuits in hazardous-area transmitter interfaces where loop power is derived from field wiring. IC Role / Device Role / Timing Role: Digital isolator for HART modem signaling and digital status reporting across the 4–20mA loop barrier. Use Value: 13µA/channel quiescent current avoids exceeding loop's 4mA minimum; 5kVRMS withstand protects against lightning-induced surges. | Use Scenario: Signal isolation between ARM Cortex-M host MCU and isolated I/O expansion modules in DIN-rail mounted controllers. IC Role / Device Role / Timing Role: Bidirectional data isolator enabling 3-wire SPI-like command/status exchange with 10Mbps capability. Use Value: 3:1 channel asymmetry allows full-duplex control (3 commands out, 1 ACK/status back) without external logic or extra isolators. |
| Battery Management Systems | Parasitically Powered Applications |
Use Scenario: Isolating cell monitoring ICs (e.g., AD7280A) from system MCU in high-voltage EV battery packs. IC Role / Device Role / Timing Role: High-CMTI digital isolator for transmitting ADC conversion results and fault flags across 400–800V potential differences. Use Value: 200kV/µs CMTI suppresses noise from switching converters; −40°C to +125°C rating covers under-hood thermal extremes. | Use Scenario: Power harvesting from 4–20mA loop or energy-harvesting transducers powering wireless sensor nodes. IC Role / Device Role / Timing Role: Ultra-low-power isolator enabling digital communication while consuming <53µA total (4 channels @ DC, 3.3V). Use Value: 77.04µW/channel at 1Mbps (1.8V) minimizes harvested energy drain, extending operational uptime between maintenance cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital isolator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ISO6741QDWR | 4-channel, 5000VRMS, 50Mbps max rate, 11.5ns typ propagation delay, 1.65–5.5V supply, 16-SOIC | Higher speed and lower latency but 2× higher quiescent current (26µA/channel @ 3.3V) | Select when system requires >10Mbps throughput or sub-15ns timing precision; avoid if battery life is primary constraint. |
| ADUM2401BRWZ | 4-channel, 5000VRMS, 1Mbps max rate, 45ns typ propagation delay, 2.7–5.5V supply, 16-SOIC | Lower max data rate and narrower supply range; no 1.8V operation or <2.7V compatibility | Select for cost-sensitive legacy designs requiring proven reliability at ≤1Mbps; not suitable for 1.8V MCUs or high-speed feedback. |
Compared with ISO6741QDWR and ADUM2401BRWZ, the MAX22841CAWE+T uniquely balances ultra-low 13µA/channel quiescent power, 10Mbps capability, and 1.71V minimum supply-making it optimal for next-generation energy-constrained industrial edge nodes where efficiency and flexibility coexist.
Availability
MAX22841CAWE+T is available at Aetrix Electronics and suitable for 4–20mA loop interfaces, compact micro PLCs, and battery management systems requiring stable component supply, long-lifecycle assurance, and reinforced isolation certification readiness.
Supply support for MAX22841CAWE+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.
The MAX228xx series targets ultra-low-power, reinforced-isolation applications in space-constrained, energy-sensitive industrial systems-designed specifically for parasitic power, extended temperature, and safety-critical signal integrity.
FAQ
What is the isolation voltage rating of the MAX22841CAWE+T?
The MAX22841CAWE+T is rated for 5000VRMS isolation voltage for 60 seconds (VISO) and 848VRMS maximum continuous working voltage (VIOWM) per IEC 60747-5-5. This qualifies it for reinforced insulation in industrial equipment meeting IEC 61010-1 and IEC 62368-1 standards. The device is pending VDE 0884-11 certification for reinforced insulation.
Does the MAX22841CAWE+T support 1.8V logic levels on both sides?
Yes, the MAX22841CAWE+T supports 1.71V to 5.5V supplies on both Side A (VDDA) and Side B (VDDB), enabling native 1.8V logic interfacing without level shifters. Input thresholds scale with supply (e.g., VIH = 0.75 × VDD for VDD < 2.25V), and output drive strength is maintained down to 1.71V.
How many channels and what directionality does the MAX22841CAWE+T provide?
The MAX22841CAWE+T provides four isolated channels with fixed 3:1 directionality-three channels transmit from Side A to Side B (IN1→OUT1, IN2→OUT2, IN3→OUT3), and one channel transmits from Side B to Side A (IN4→OUT4). This configuration is inherent to the MAX22841 variant and cannot be altered.
What is the typical supply current consumption of the MAX22841CAWE+T at 3.3V?
At VDDA = VDDB = 3.3V and DC input conditions, the MAX22841CAWE+T draws 13.0µA per channel on Side A and 25.4µA per channel on Side B, totaling approximately 154µA for all four channels. This ultra-low quiescent current enables multi-year operation in battery-powered field instruments.
Is the MAX22841CAWE+T pin-compatible with other devices in the MAX228xx family?
Yes, all MAX228xx variants-including MAX22840, MAX22841, and MAX22842-share identical 16-pin wide SOIC (W16MS+12A) packaging and pinout. Functionally, they differ only in channel directionality (4×A→B, 3×A→B+1×B→A, or 2×A→B+2×B→A), allowing drop-in replacement where directionality matches system requirements.
MAX22841CAWE+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 16-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Capacitive Coupling
- Type:
- SPI
- Isolated Power:
- Yes
- Number of Channels:
- 4
- Inputs - Side 1/Side 2:
- 3/1
- Channel Type:
- Unidirectional
- Voltage - Isolation:
- 5000Vrms
- Common Mode Transient Immunity (Min):
- 200kV/µs
- Data Rate:
- 10Mbps
- Propagation Delay tpLH / tpHL (Max):
- 45ns, 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-SOIC
MAX22841CAWE+T FAQ
1.How can I place an order for MAX22841CAWE+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX22841CAWE+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 MAX22841CAWE+T reliable?
The price and inventory of MAX22841CAWE+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX22841CAWE+T is usually 5 days.
3.What payment methods are accepted for MAX22841CAWE+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX22841CAWE+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX22841CAWE+T?
MAX22841CAWE+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX22841CAWE+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 MAX22841CAWE+T?
For technical support, including MAX22841CAWE+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX22841CAWE+T requirements.
6.How does Aetrix verify that MAX22841CAWE+T is sourced from the original manufacturer or authorized distributors?
All MAX22841CAWE+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 MAX22841CAWE+T meets industry standards.
7.What is the process for return or replacement of MAX22841CAWE+T?
All MAX22841CAWE+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX22841CAWE+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 MAX22841CAWE+T part is unused and in its original packaging.
Return procedure for MAX22841CAWE+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX22841CAWE+T Tags
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