MAX22199ATJ+

MAX22199ATJ+ is an IEC 61131-2 compliant industrial digital input device. It translates eight 24V current-sinking industrial inputs to a serialized, SPI-compatible output that interfaces with 3V to 5.5V logic. It can operate as eight Type 1/Type 3 digital inputs or four Type 2 digital inputs. This device provides diagnostic functions, including thermal shutdown, 24V under voltage alarm, 24V missing voltage alarm, and SPI and CRC communication error detection. All of the faults can be configured to generate an interrupt using the active-low FAULT pin. For robust operation in industrial environments, each input includes a programmable glitch filter. Noise filters on each channel can be independently programmed to one of eight values between 50µs and 20ms or filter bypass. It is used in applications such as programmable logic controllers, distributed control system, motor control, and building automation.

• High integration reduces BOM count and board space
• Energy less field-side LED drivers, low power dissipation with negative input voltage
• Input protection to ±40V, integrated field-supply voltage monitors, 5-bit CRC SPI error detection
• ±8kV contact ESD and ±15kV air-gap ESD using minimum 1Kohm resistor
• ±2kV surge tolerant using minimum 1Kohm resistor
• Selectable input debounce filtering, current sources can be disabled
• Supply voltage range from 7V to 65V, logic supply current is 13µA typical
• Load regulation is 4mV typical at (ILOAD = 1mA to 10mA, VDD24 = 24V)
• SCLK clock frequency is 10MHz maximum at (VL - VGND = +3.0V to +5.5V)
• Operating temperature range from -40°C to +125°C, 32-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