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MAX31911

Maxim Integrated
Part Number MAX31911
Manufacturer Maxim Integrated
Description Digital Input Translator/Serializer
Published Nov 26, 2019
Detailed Description MAX31911 EVALUATION KIT AVAILABLE Industrial, Octal, Digital Input Translator/Serializer General Description The MAX31...
Datasheet PDF File MAX31911 PDF File

MAX31911
MAX31911

Overview
MAX31911 EVALUATION KIT AVAILABLE Industrial, Octal, Digital Input Translator/Serializer General Description The MAX31911 industrial interface serializer translates, conditions, and serializes 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 front-end interface circuit of a programmable logic controller (PLC) digital input module.
The device features integrated current limiting, lowpass filtering, and channel serialization.
Input current limiting allows a significant reduction in power consumed from the field voltage supply as compared to traditional discrete resistor-divider implementations.
Selectable on-chip lowpass filters allow flexible debouncing and filtering of sensor outputs based on the application.
On-chip serialization allows a drastic reduction in the number of optocouplers used for isolation.
The device serializer is stackable so that any number of input channels can be serialized and output through only one SPIcompatible port.
This reduces the number of optocouplers needed to only three, regardless of the number of input channels.
For enhanced robustness with respect to high-frequency noise and fast electrical transients, a multibit CRC code is generated and transmitted through the SPI port for each 8 bits of data.
The on-chip 5V voltage regulator can be used to power external optocouplers, digital isolators, or other external 5V circuitry.
For ultra-low-power applications, Maxim Integrated offers a pin-compatible version of this device, the MAX31910.
The MAX31910 uses patent-pending circuit techniques to achieve further reduction of power beyond what is possible by input current limiting alone.
The MAX31912 and MAX31913 versions include energy-less LED drivers while maintaining pin compatibility.
Benefits and Features ●● Very Low Power and Heat Dissipation • Low Quiescent Current (1.
4mA typ) • Highly Accurate and Stable ...


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