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Interface - Specialized High speed Octal Industrial Digital Input With parallel output

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MAX22195ATJ+ General Description

The MAX22195 translates eight 24V industrial digital inputs to eight CMOS-compatible, parallel outputs. Propagation delay from input-to-output is less than 300ns for all channels. Current-limiters on each digital input greatly reduce power dissipation compared to traditional resistive inputs. The accuracy of these current-limiters minimizes power dissipation while ensuring compliance with the IEC 61131-2 standard. A current-setting resistor allows the MAX22195 to be configured for Type 1, Type 2, or Type 3 inputs. Additionally, the MAX22195 has energyless field-side LED drivers to meet the indicator light requirement of IEC 61131-2 with no additional power dissipation.

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Key Features

  • High-Speed, Industrial Digital Inputs
    • 300ns Maximum Propagation Delay
    • ±10ns Maximum Channel-to-Channel Skew
    • Parallel Output for Simultaneous Signal Delivery
  • High Integration Reduces BOM Count and Board Space
    • Operates Directly from Field Supply (7V to 65V)
    • Compatible with 3.3V or 5V Logic
    • 5mm x 5mm, 32-TQFN Package
  • Low Power and Low Heat Dissipation
    • Low Quiescent Current (1.2mA Maximum)
    • Accurate Input Current-Limiters
    • Energyless Field-Side LED Drivers
  • Fault Tolerant with Built-In Diagnostics
    • Integrated Field-Side Supply Monitor
    • Integrated Overtemperature Monitor
    • Current-Setting Resistor Monitor
  • Configurability Enables Wide Range of Applications
    • Configurable IEC 61131-2 Types 1, 2, 3 Inputs
    • Configurable Input Current Limiting from 0.56mA to 3.97mA
  • Robust Design
    • ±1kV Surge Tolerant using Minimum 1kΩ Resistor
    • ±8kV Contact ESD and ±15kV Air Gap ESD Using Minimum 1kΩ Resistor
    • -40°C to +125°C Ambient Operating Temperature


  • Building Automation
  • Industrial Automation
  • Process Automation
  • Programmable Logic Controllers


model MAX22195ATJ+ package 32-LFCSP-5X5X0.75
packingQty Tray,490 packingOption Tray
packageType T3255+6C rohs roHSY
lifeCycle production tempRange -40 to 125C
Manufacturer Analog Devices Inc. Product Category Interface - Specialized
RoHS Details Type Octal Digital Input with Parallel Output
Supply Voltage - Max 65 V Supply Voltage - Min 7 V
Operating Supply Current 600 uA Minimum Operating Temperature - 40 C
Maximum Operating Temperature + 125 C Mounting Style SMD/SMT
Package / Case TQFN-32 Brand Analog Devices / Maxim Integrated
Development Kit MAX22195EVKIT# Operating Supply Voltage 7 V to 65 V
Output Type Parallel Pd - Power Dissipation 2.222 W
Product Digital Input Devices Product Type Interface - Specialized
Series MAX22195 Factory Pack Quantity 490
Subcategory Interface ICs Unit Weight 0.074964 oz
MAX22195: Functional/Block Diagram

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