AFEx32A3W Current-Source Smart Analog Front-End

Texas Instruments AFEx32A3W Current-Source Smart Analog Front-End (AFE) is a three-channel, buffered voltage-output, current-output, and ADC-input smart AFE. The AFEx32A3W devices support a current source that can be used for linear control of laser diodes and miniature motors. These devices support Hi-Z power-down mode and Hi-Z output during power-off conditions for voltage output. Channel 1 can be configured as an ADC, voltage-output DAC, or comparator. The voltage-output DACs provide a force-sense option for use as a programmable comparator and current sink. The multifunction GPIO, function generation, and programmable nonvolatile memory (NVM) enable these smart AFEs for processor-less applications and design reuse. These devices automatically detect SPI or I²C interfaces and contain an internal reference.