MAX22821

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

Ultra -Low-Power and High CMTI Digital Isolator

Data Sheet (Rev. 3)
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Part Details

  • Ultra-Low Power Consumption
    • 11.4µA per Channel at DC with VDD = 3.3V
    • 15.4µA per Channel at 100kbps with VDD = 3.3V
    • 54.7µA per Channel at 1Mbps with VDD = 3.3V
  • Wide Supply Range Supports from 1.71V to 5.5V
  • Reinforced Galvanic Isolation for Digital Signals
    • 8-NSOIC with 4mm Creepage and Clearance Withstands 3kVRMS for 60s (VISO) and Continuously Withstands 445VRMS (VIOWM)
    • 8-WSOIC with 8mm Creepage and Clearance Withstands 5kVRMS for 60s (VISO) and Continuously Withstands 848VRMS (VIOWM)
    • Withstands ±10kV Surge Between GNDA and GNDB with 1.2/50µs Waveform
    • High CMTI (200kV/µs, min)
  • Low Propagation Delay and Low Jitter
    • Maximum Data Rate Up to 10Mbps
    • Low Propagation Delay 51ns (typ) at VDD = 3.3V
    • Clock Jitter RMS 15.4ps (typ)
  • Safety Regulatory Approvals
    • UL According to UL1577
    • cUL According to CSA Bulletin 5A
    • VDE 0884-11 Reinforced Insulation (Pending)
    • IECEx and ATEX Intrinsic Safety (IS): Sira 0518 II 1G Ex ia IIC Ga (Pending)
MAX22821
Reinforced, Ultra-Low-Power, Two-Channel Digital Isolators
MAX22420, MAX22421, MAX22820, MAX22821: Simplified Application Diagram
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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
MAX2242XSEVKIT

Evaluation Kit for the MAX22420/MAX22421/MAX22820/MAX22821

Buy Now View Details

Features and Benefits

  • Ultra-Low-Power Operation
  • Data Transfer Rates up to 10Mbps
  • MAX22420 with 2:0 Channel Configuration MAX22421 with 1:1 Channel Configuration
  • SMA Connectors for Easy Connection to External Equipment
  • Wide Power Supply Voltage Range from 1.71V to 5.5V
  • Guaranteed up to 3kVRMS Isolation for the 60s
  • -40° C to +125° C Temperature Range
  • Proven PCB Layout

Product Details

The MAX22420/MAX22421 evaluation kits (EV kits) provide a proven design to evaluate the MAX22420/1 and MAX22820/1, a family of reinforced, ultra-low-power, two-channel digital isolators in an 8-pin NSOIC or 8-pin WSOIC package, respectively. Two types of evaluation boards are available to support all variants in the family in both 1/1 and 2/0 configurations. The MAX22421BSEVKIT# is fully assembled and tested, and it comes populated with the MAX22421BASA+ (Figure 1). The MAX2242XSEVKIT# is a generic board that has U1 unpopulated, allowing the user to select a device from the MAX22420/MAX22421 family (Figure 2). Both the evaluation boards support the 8-pin NSOIC package type only. See Table 1 EV kit options.

The MAX22820/MAX22821 is functionally equivalent to the MAX22420/MAX22421 but in an 8-pin WSOIC package. The EV kits can be used to evaluate the functionality and electrical performance of the MAX22820/ MAX22821.

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 MAX2242XSEVKIT# comes with U1 unpopulated and supports the following digital isolators: MAX22420BASA+, MAX22420CASA+, MAX22420EASA+, MAX22420FASA+, MAX22421BASA+, MAX22421CASA+, MAX22421EASA+, and MAX22421FASA+.

Applications

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

eval board
schematic 2
MAX22421BSEVKIT

Evaluation Kit for the MAX22420/MAX22421/MAX22820/MAX22821

Buy Now View Details

Features and Benefits

  • Ultra-Low-Power Operation
  • Data Transfer Rates up to 10Mbps
  • MAX22420 with 2:0 Channel Configuration MAX22421 with 1:1 Channel Configuration
  • SMA Connectors for Easy Connection to External Equipment
  • Wide Power Supply Voltage Range from 1.71V to 5.5V
  • Guaranteed up to 3kVRMS Isolation for the 60s
  • -40° C to +125° C Temperature Range
  • Proven PCB Layout

Product Details

The MAX22420/MAX22421 evaluation kits (EV kits) provide a proven design to evaluate the MAX22420/1 and MAX22820/1, a family of reinforced, ultra-low-power, two-channel digital isolators in an 8-pin NSOIC or 8-pin WSOIC package, respectively. Two types of evaluation boards are available to support all variants in the family in both 1/1 and 2/0 configurations. The MAX22421BSEVKIT# is fully assembled and tested, and it comes populated with the MAX22421BASA+ (Figure 1). The MAX2242XSEVKIT# is a generic board that has U1 unpopulated, allowing the user to select a device from the MAX22420/MAX22421 family (Figure 2). Both the evaluation boards support the 8-pin NSOIC package type only. See Table 1 EV kit options.

The MAX22820/MAX22821 is functionally equivalent to the MAX22420/MAX22421 but in an 8-pin WSOIC package. The EV kits can be used to evaluate the functionality and electrical performance of the MAX22820/ MAX22821.

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 MAX2242XSEVKIT# comes with U1 unpopulated and supports the following digital isolators: MAX22420BASA+, MAX22420CASA+, MAX22420EASA+, MAX22420FASA+, MAX22421BASA+, MAX22421CASA+, MAX22421EASA+, and MAX22421FASA+.

Applications

  • 4-20mA Loop Process Control
  • Battery Management
  • Compact Micro PLC
  • Parasitically Powered Applications
MAX2242XSEVKIT
Evaluation Kit for the MAX22420/MAX22421/MAX22820/MAX22821
MAX22421BSEVKIT: Board Photo
MAX22421BSEVKIT
Evaluation Kit for the MAX22420/MAX22421/MAX22820/MAX22821
MAX22421BSEVKIT: Board Photo

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