MAX22193

RECOMMENDED FOR NEW DESIGNS

High-Speed, Quad, Industrial Digital Input with Parallel Output

Industry's Smallest, Robust, Qual Digital Input with Parallel Output

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Overview

  • High-Speed, Industrial Digital Inputs
    • 300ns Maximum Propagation Delay
    • 40ns Maximum Channel-to-Channel Skew
    • Parallel Output for Simultaneous Signal Delivery
  • High Integration Reduces BOM and Space
    • Operates Directly from Field Supply (7V to 65V)
    • Compatible with 3.3V or 5V Logic
    • 4mm x 4mm, 20-TQFN Package
  • Low Power and Low Heat Dissipation
    • 1.2mA (max) Quiescent Current with 3.3V Supply
    • Accurate Input Current-Limiters
    • Energyless Field-Side LED Drivers
  • Fault Tolerant with Built-In Diagnostics
    • Integrated Field-Side Supply Monitor
    • Integrated Over-Temperature Monitor
    • Current-Setting Resistor Monitor
  • Configurability Enables Wide Range of Applications
    • Configurable IEC 61131-2 Types 1, 2, 3 Inputs
    • Input Current Limiting from 1.18mA to 7.01mA
  • Robust Design for Industrial Environments
    • ±2kV Surge Tolerant using 470Ω Resistor (min)
    • ±8kV Contact ESD and ±15kV Air Gap ESD Using 470Ω Resistor (min)
    • -40°C to +125°C Ambient Operating Temperature

The MAX22193 translates four 24V industrial digital inputs to four CMOS-logic-compatible, parallel outputs. Propagation delay from input-to-output is less than 300ns for all four channels. Current-limiter on each digital input greatly reduces power dissipation compared to traditional resistive input. The accuracy of these current-limiters minimizes power dissipation while ensures compliance with the IEC 61131-2 standard. A current-setting resistor allows the MAX22193 to be configured for Type 1, Type 2 or Type 3 digital inputs. Additionally, the MAX22193 has energyless field-side LED drivers to meet the indicator light requirement of IEC 61131-2 with no additional power dissipation.

The MAX22193 provides a 3.3V integrated voltage regulator. The internal LDO accepts the field supply VDD24 from 7V to 65V. The internal LDO output can supply up to 25mA of current in addition to powering the basic MAX22193 requirements. This LDO can be used to power digital isolators and other field-side circuits. Alternatively, the MAX22193 can be powered from an external 3.0V to 5.5V supply at VDD3.

The MAX22193 includes an open-drain READY output that asserts high to indicate the MAX22193 is functional. If the VDD24 field-side supply voltage is too low, or a fault in the current-setting resistor is detected, or the device reaches an over-temperature condition, the READY signal is set to high-impedance.

Applications

  • Programmable Logic Controllers (PLC)
  • Distributed Control System (DCS)
  • Motor Control
  • Industrial Automation
  • Process Automation

MAX22193
High-Speed, Quad, Industrial Digital Input with Parallel Output
MAX22193 Block Diagram
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Evaluation Kits

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MAX22193EVKIT

Evaluation Kit for the MAX22193

Features and Benefits

  • Easy Evaluation of the MAX22193
    • Configured for IEC 61131-2 Type 1/3
    • Support IEC 61131-2 Type 2 on Signal Channel
    • Parallel Output for Simultaneous Signal Delivery
    • Configurable External VDD24 Voltage Monitoring
  • Robust Design with ±2kV Input Surge Protection
  • Withstands ±8kV Contact Electrostatic Discharge (ESD) and ±15kV Airgap ESD
  • Fully Assembled and Tested
  • Proven PCB Layout

Product Details

The MAX22193 evaluation kit (EV kit) provides a proven design to evaluate the MAX22193, a high-speed, quad, industrial digital input with parallel output device.

The MAX22193 EV kit provides a terminal block for all four inputs and a header for all four outputs for easy monitoring and evaluation. Four field-side LEDs are provided to indicate the input status, as well as a READY LED to indicate the MAX22193 is operating normally.

APPLICATIONS

  • Distributed Control System (DCS)
  • Industrial Automation
  • Motor Control
  • Process Automation
  • Programmable Logic Controllers (PLC)

MAX22193EVKIT
Evaluation Kit for the MAX22193
MAX22193EVKIT: Board Photo

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