MAX22441

RECOMMENDED FOR NEW DESIGNS

Reinforced, Ultra-Low-Power, 4-Channel Digital Isolators

Data Sheet (Rev. 5) Product Selection Table
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Overview

  • 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)

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.

APPLICATIONS

  • 4-20mA Loop Process Control
  • Compact Micro PLC
  • Battery Management
  • Parasitically Powered Applications
MAX22441
Reinforced, Ultra-Low-Power, 4-Channel Digital Isolators
MAX22440 Simplified Block Diagram MAX22440 Typical Application Circuit MAX22440 Pin Configuration
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Documentation

Data Sheet 1

Safety and Regulatory Compliance 1

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Tools & Simulations

IBIS Model 1

Evaluation Kits

eval board
schematic 1
schematic 2
schematic 3
MAX22441EVKIT

Evaluation Kit for MAX22441

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Features and Benefits

  • Ultra-Low-Power Operation
  • Data Transfer Rates up to 10Mbps
  • MAX22440 with 4:0 Channel Configuration
  • MAX22441 with 3:1 Channel Configuration
  • MAX22442 with 2:2 Channel Configuration
  • SMA Connectors for External Equipment Connection
  • Wide Power Supply Voltage Range from 1.71V to 5.5V
  • Guaranteed up to 3kVRMS Isolation for 60 seconds
  • -40°C to +125°C Temperature Range
  • Proven PCB Layout

Product Details

The MAX22440-MAX22442 evaluation kits (EV kits) provide a proven design to evaluate the MAX22440-MAX22442, MAX22840-MAX22842, and MAX22880-MAX22882, a family of reinforced, ultra-low-power, four-channel digital isolators in a 16-pin QSOP, 16-pin WSOIC, or 20-pin SSOP package, respectively. Two types of evaluation boards are available to support all variants in the family in 4/0, 3/1, or 2/2 channel configurations. The MAX22441CEEVKIT# is fully assembled and tested, and it comes populated with the MAX22441CAEE+ (Figure 1). The MAX2244XEEVKIT# is a generic board that has U1 unpopulated, allowing the user to select a device from the MAX22440-MAX22442 family (Figure 2). Both evaluation boards only support the 16-pin QSOP package type. See Table 1 for EV kit options.

The MAX22840-MAX22842 and MAX22880-MAX22882 are functionally equivalent to the MAX22440-MAX22442, but in a 16-pin WSOIC and 20-pin SSOP package, respectively. The EV kits can be used to evaluate the functionality and electrical performance of the MAX22840-MAX22842 and the MAX22880-MAX22882.

The EV kits should be powered from two independent isolated power supplies with nominal output voltage in the range of 1.71V to 5.5V. For evaluating the electrical parameters of the device without any isolation between the two sides, a single power supply can also be used.

The MAX2244XEEVKIT# comes with U1 unpopulated and supports the following digital isolators: MAX22440CAEE+, MAX22440FAEE+, MAX22441CAEE+, MAX22441FAEE+, MAX22442CAEE+, and MAX22442FAEE+.
MAX22441EVKIT
Evaluation Kit for MAX22441
MAX22441EVKIT Board Photo Angle MAX22441EVKIT Board Photo Top MAX22441EVKIT Board Photo Bottom

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