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.
