MAX22194 Quad Industrial Sink/Source Digital Input

Analog Devices Inc. MAX22194 Quad Industrial Sink/Source Digital Input translates four industrial 24V or TTL-level inputs to logic-level outputs. The device has a serial interface that allows configuration and reading of serialized data through SPI. The input channels are individually configurable as sinking (p-type) or sourcing (n-type) inputs. Current limiters on each digital input minimize power dissipation while ensuring compliance with the IEC 61131-2 standard. The inputs are individually configurable for Type 1/3, Type 2, TTL, or HTL (high-impedance 24V levels) with a single current-setting resistor. The current sinks or sources can be individually disabled. Every input channel features a programmable glitch/debounce filter. The Analog Devices MAX22194 can be powered from a field supply range from 8V up to 36V for sink/source operation and has an integrated 5V linear regulator that can provide up to 20mA of load current.