MAX1464AAI+

Sensor And Detector Interfaces Overview

The MAX1464AAI+ is a low-power, low-noise multichannel sensor signal processor in a 28-pin SSOP package. It operates from a single 5.0V supply across -40°C to +125°C. Key specifications include a 16-bit ADC with selectable resolution (9 to 16 bits), two 16-bit DACs, and two 12-bit PWM outputs. The device features a 16-bit CPU with 4kB FLASH memory, four rail-to-rail op amps, and an SPI-compatible interface.

Sensor And Detector Interfaces Feature Summary

• Integrated programmable amplification, calibration, linearization, and temperature compensation for sensor signals.
• Supports differential or single-ended inputs accommodating sensitivities from 1mV/V to 1V/V without external trim components.
• Includes dual output channels with 16-bit DACs and 12-bit PWMs, plus flexible dual op-amp blocks for buffering and driving loads.
• Features on-chip 16-bit CPU with 4kB FLASH memory for user-defined algorithms and integrated temperature sensing.

Sensor And Detector Interfaces Applications

• Pressure sensor signal conditioning
• Weight measurement systems
• Thermocouple and RTD linearization
• Transducers and transmitters
• Process indicators

Sensor And Detector Interfaces Procurement Notes

Verify the specific suffix 'AAI+' against the manufacturer's current ordering guide to confirm the industrial/commercial temperature range and lead-free status. Ensure the 28-pin SSOP package matches the target PCB footprint. Cross-reference the datasheet revision date to confirm compatibility with any recent design updates.

Sensor And Detector Interfaces Selection Notes

Select this component when high integration of analog front-end processing and digital control is required. It is suitable for applications needing ratiometric outputs for battery-operated instruments. Consider the 4mA–20mA loop drive capability if interfacing with standard industrial transmitters. Verify that the 5V supply voltage aligns with the system power architecture.

Sensor And Detector Interfaces Part Context

This part belongs to the MAX1464 family of sensor signal processors. Variants include the MAX1464CAI (0°C to +70°C) and MAX1464EAI (-40°C to +85°C). The AAI suffix specifically denotes the extended automotive/industrial temperature range up to +125°C within the same 28-pin SSOP form factor.

Sensor And Detector Interfaces Replacement Considerations

Direct pin-for-pin replacements within the same series include the MAX1464EAI for lower temperature requirements. For broader functional equivalents, consult Analog Devices' current portfolio for updated sensor signal processors, as legacy Maxim Integrated products may have successor models with enhanced performance or availability.