MAX22196ATJ+

MAX22196 is an industrial octal digital input that translates eight industrial 24V or TTL level inputs to logic level outputs. The device has a serial interface allowing 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. With a single current-setting resistor, the inputs are individually configurable for Type 1/3, Type 2 TTL or HTL (high-impedance 24V levels). Every input channel has a programmable glitch/debounce filter, and every input channel has an optional 16bit down-counter. It can be powered from a field supply 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. Applications include programmable logic controllers, factory automation and process control.

• Software configurable, eight inputs individually configurable as sink or source
• Programmable glitch filters, addressable or daisy-chain SPI to reduce isolation channels
• Extensive diagnostics (supply volt monitoring, temperature alarm, PCB fault alarm, thermal shutdown)
• Robust solution, -40°C to +125°C operating temperature
• IEC 61000-4-2 ESD airgap ±15KV and contact, ±8kV with minimum 680 ohm pulse resistor at field inputs
• IEC 61000-4-5 surge ±1.2KV/42ohm with minimum 680 ohm pulse resistor at field inputs
• Cyclic redundancy check (CRC) error detection on SPI
• Low-power dissipation, operates from 8V to 36V field supply, low-supply current of 2mA maximum
• Compact solution, integrated 5V, 20mA linear regulator, 2.5V to 5.5V logic interface
• LED driver matrix or GPO outputs, 32-pin TQFN package

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party