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MAX12900

Part Number	MAX12900
Manufacturer	Maxim Integrated
Description	Ultra-Low-Power 4-20mA Sensor Transmitter
Published	Jun 4, 2019
Detailed Description	MAX12900 EVALUATION KIT AVAILABLE Ultra-Low-Power 4-20mA Sensor Transmitter General Description The MAX12900 is an ult...
Datasheet	MAX12900 PDF File

Overview

MAX12900 EVALUATION KIT AVAILABLE Ultra-Low-Power 4-20mA Sensor Transmitter General Description The MAX12900 is an ultra-low-power, highly integrated 4-20mA sensor transmitter.
The MAX12900 integrates ten building blocks in a small package: a wide input supply voltage LDO, two conditioner circuits for pulse-widthmodulated (PWM) inputs, two low-power, low-drift, generalpurpose operational amplifiers (op amp) one wide bandwidth, zero-offset drift operational amplifier; two diagnostic comparators, a power-up sequencer with power good output to allow for a smooth power-up, and a low-drift voltage reference.
The MAX12900 converts PWM data from a microcontroller into current over a 4-20mA loop with two, three, or fourwire configurations.
The equivalent to an ultra-low-power, high-resolution, digital-to-analog converter is realized with the combination of two-PWM signals received from a microcontroller, the two conditioner circuits, and an active filter built with the integrated low-power o...

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