Industrial chip serialises eight current inputs to SPI

MAX22190 is an IEC 61131-2 compliant industrial digital input device, which translates eight 24V current-sinking inputs to an SPI-compatible serial output that interfaces with 3V to 5.5V logic. A current setting resistor allows it to be configured for Type 1, Type 2, or Type 3 inputs. “Designed to reduce power, system cost, and size for ...

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