Mouser Electronics is now stocking the MAX22195 octal industrial digital input device from Maxim Integrated. Designed to reduce size, power and system cost for programmable logic controller digital-input subsystems, the MAX22195 is a highly integrated IEC 61131-2-compliant digital input device for industrial, process and building automation applications.

The fault-tolerant, 5 x 5mm 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 3 or 5.5V logic and incorporates a current-setting resistor, allowing engineers to configure it for IEC 61131-2 type 1, 2, or 3 inputs. It includes an internal low dropout 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.

The device also offers surge protection to ±1 and ±8kV contact electrostatic discharge and ±15kV air gap electrostatic discharge protection to contribute to increased system robustness. It is supported by 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 it is operating normally.

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