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  2. Interface and Isolation
  3. Digital Isolation Technology
  4. Standard Digital Isolators
  5. MAX22881


Features and Benefits

  • Ultra-Low Power Consumption
    • 9.6μA per Channel at DC with VDD = 3.3V
    • 13.2μA per Channel at 100kbps with VDD = 3.3V
    • 47.6μA per Channel at 1Mbps with VDD = 3.3V
  • Wide Operating Voltage Range from 1.71V to 5.5V
  • Reinforced Galvanic Isolation of Digital Signals
    • Withstands ±10kV Surge between GNDA and GNDB with 1.2μs/50μs Waveform
    • High CMTI (200kV/μs, min)
    • MAX22440-MAX22442 in 16 QSOP Package:
      • 3000VRMS Isolation Voltage for 60s (VISO)
      • 445VRMS Continuous Working Voltage (VIOWM)
    • MAX22840-MAX22842 in 16 Wide SOIC Package:
      • 5000VRMS Isolation Voltage for 60s (VISO)
      • 848VRMS Continuous Working Voltage (VIOWM)
    • MAX22880-MAX22882 in 20 SSOP Package:
      • 3750VRMS Isolation Voltage for 60s (VISO)
      • 784VRMS Continuous Working Voltage (VIOWM)
  • Safety Regulatory Approvals
    • UL According to UL1557 (Pending)
    • VDE 0884-11 Reinforced Insulation (Pending)
    • CSA IEC 62368-1, and IEC 61010-1 (Pending)
  • Low Propagation Delay and Low Jitter
    • Maximum Data Rate Up to 10Mbps
    • Propagation Delay of 43.8ns (typ) at VDD = 3.3V
    • Clock Jitter RMS of 35.0ps (typ)

Product Details

The MAX22440-MAX22442, MAX22840-MAX22842, and MAX22880-MAX22882 are a family of 4-channel, reinforced, ultra-low-power digital galvanic isolators using Analog Devices proprietary process technology. The MAX22440-MAX22442 are in a 16-QSOP package with a withstand voltage rating of 3kVRMS for 60 seconds, the MAX22840-MAX22842 are in a 16 wide SOIC package with a withstand voltage rating of 5kVRMS for 60 seconds, and the MAX22880-MAX22882 are in a 20-SSOP package with a withstand voltage rating of 3.75kVRMS for 60 seconds. Devices are rated for operation at ambient temperatures from -40°C to +125°C.

The devices transfer digital signals between circuits with different power domains, using as little as 77.04μW per channel at 1Mbps (1.8V supply). The ultra-low-power feature reduces system dissipation, increases reliability, and enables compact designs. Devices are available with a maximum data rate of 10Mbps and with default-high or default-low outputs. The devices feature low propagation delay and low clock jitter, which reduces system latency. Independent 1.71V to 5.5V supplies on each side also make the devices suitable for use as level translators. All four channels of the MAX22440/840/880 transfer data in the same direction. Three out of four channels of the MAX22441/841/881 transfer data in one direction while the other one transfers data in the opposite direction. Two channels of the MAX22442/842/882 transfer data in one direction and the other two in the opposite direction.


  • 4-20mA Loop Process Control
  • Compact Micro PLC
  • Battery Management
  • Parasitically Powered Applications

Product Lifecycle icon-recommended Recommended for New Designs

This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.

Tools & Simulations

IBIS Model

Design Resources

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well.  "Zero defects" for shipped products is always our goal.View our quality and reliability program and certifications for more information.

Part Number Material Declaration Reliability Data Pin/Package Drawing CAD Symbols, Footprints & 3D Models
MAX22881CAAP+ Material Declaration Reliability Data 20-SSOP-5.30_MM
MAX22881CAAP+T Material Declaration Reliability Data 20-SSOP-5.30_MM
Wafer Fabrication Data

Sample & Buy

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