Digital Input targets PLC and automation applications
The MAX22195 octal industrial digital input device from Maxim Integrated is in stock at Mouser Electronics. Designed to reduce power, system cost, and size for programmable logic controller (PLC) digital-input subsystems, the MAX22195 is a highly integrated IEC 61131-2-compliant digital input device for industrial, process, and building automation applications.
The device translates eight 24V industrial inputs to a serialised CMOS-compatible, parallel outputs with propagation delay of less than 300ns from input-to-output for all channels.
It interfaces with 3V or 5.5V logic and incorporates a current-setting resistor, allowing engineers to configure the MAX22195 for IEC 61131-2 Type 1, 2, or 3 inputs and it includes an internal low dropout (LDO) regulator that provides power to digital isolators and other field-side circuits, plus energy-less field-side LED drivers that meet the indicator light requirement of IEC 61131-2 with no additional power dissipation.
Surge protection to ±1kV and ±8kV contact electrostatic discharge (ESD) is offered along with ±15kV air gap ESD protection to contribute to increased system robustness.
Support comes in the shape of the MAX22195EVKIT evaluation system, which provides terminal blocks for all eight inputs and a single header for all eight outputs for easy monitoring and evaluation. Eight field-side LEDs indicate input status, and a READY LED indicates that the MAX22195 is operating normally.
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