MAX31914AUI+

MAX31914AUI+ is an ultra-low power industrial, octal, digital input translator. This device translates and conditions the 24V digital output of sensors and switches used in industrial, process, and building automation to 5V CMOS-compatible signals required by microcontrollers. It provides the frontend interface circuit of a programmable logic controller (PLC) digital input module. The signal voltage translation is performed in conjunction with input current limiting and lowpass filtering. Input current limiting allows a significant reduction in power consumed from the field-supply voltage, as compared to traditional discrete resistor-divider implementations. It is used in applications such as digital input modules for programmable, logic controllers (PLCs), industrial automation, building automation, and process automation.

• Wide operating field-supply voltage range from 7V to 36V
• Special ultra-low-power operating mode with switched current limiters
• Configurability enables a wide range of standard and custom applications
• 8 CMOS logic outputs for high-speed simultaneous transfer of all input states to the controller
• On-chip 5V regulator, on-chip overtemperature indicator, on-chip field-supply voltage monitor
• High HBM ESD immunity on all field input pins (15kV HBM)
• Regulator load regulation is 20mV typical at (ILOAD = 1mA to 50mA)
• Input data rate is 1.3Mbps, input pulse width is 0.75µs minimum
• Propagation delay is 300ns typical at (TA = -40°C to +125°C)
• Operating temperature range from -40°C to +125°C, 38-lead TSSOP 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