MAX12900AATJ+T

Sensor And Detector Interfaces Overview

The MAX12900AATJ+T is an ultra-low-power, highly integrated 4-20mA sensor transmitter manufactured by Analog Devices Inc./Maxim Integrated. It integrates ten building blocks in a small package: a wide input supply voltage LDO, two conditioner circuits for pulse-width-modulated (PWM) inputs, two low-power, low-drift, general-purpose 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 four-wire configurations.

Sensor And Detector Interfaces Feature Summary

• Integrates ten building blocks including LDO, op amps, comparators, and a power-up sequencer
• Converts PWM data from a microcontroller into current over a 4-20mA loop
• Provides high linearity and high resolution for accurate signal transmission
• Features a low-drift voltage reference for negligible error over wide temperature ranges

Sensor And Detector Interfaces Applications

• Loop-Powered 4-20mA Current Transmitter
• Smart Sensors
• Remote Instrumentation
• Industrial Automation and Process Control

Sensor And Detector Interfaces Procurement Notes

Verify the exact ordering suffix against the manufacturer's official documentation to ensure correct packaging and RoHS compliance status. Confirm availability through authorized distributors as stock levels fluctuate. Cross-reference the datasheet revision date to ensure compatibility with your design requirements. Always validate component authenticity upon receipt.

Sensor And Detector Interfaces Selection Notes

Consider the MAX12900AATJ+T when designing ultra-low-power, highly integrated 4-20mA sensor transmitters. Evaluate its wide input supply voltage range and low power consumption for battery-operated or loop-powered applications. Assess the need for its integrated building blocks, such as the LDO, op amps, and comparators, to simplify circuit design and reduce component count.

Sensor And Detector Interfaces Part Context

The MAX12900 series represents a family of ultra-low-power, highly integrated 4-20mA sensor transmitters designed for industrial applications. These devices consolidate multiple analog and digital functions into a single compact package, reducing board space and simplifying system architecture. They are particularly suited for smart sensors and remote instrumentation where power efficiency and accuracy are critical.

Sensor And Detector Interfaces Replacement Considerations

Direct replacements should be sought within the MAX12900 family or comparable 4-20mA transmitter ICs from Analog Devices/Maxim Integrated. Verify pinout compatibility, electrical specifications, and package dimensions before substitution. Consult the manufacturer's obsolescence notices and recommended replacement guides for updated part numbers.

Sensor And Detector Interfaces FAQ

What is the typical supply current consumption of the MAX12900?

The typical supply current consumption is 170µA.

What is the maximum error for linearity in the MAX12900?

The maximum error for linearity is 0.01%.

What is the maximum temperature coefficient for the voltage reference?

The maximum temperature coefficient for the voltage reference is 10ppm/°C.