MAX9925AUB+

Sensor And Detector Interfaces Overview

The MAX9925AUB+ is a single-channel variable reluctance sensor interface device manufactured by Analog Devices Inc./Maxim Integrated. It operates within a supply voltage range of 4.5V to 5.5V and consumes 2.6mA of operating current. The component utilizes a 10-pin uMAX package and supports serial SPI communication. It functions across an extended temperature range from -40°C to +125°C, with a maximum power dissipation of 707.3mW. The device features differential inputs and logic outputs, integrating precision amplification and comparison capabilities for robust signal processing.

Sensor And Detector Interfaces Feature Summary

• Integrates a precision operational amplifier and comparator for accurate small-signal detection
• Features user-enabled internal adaptive peak threshold or flexible external threshold options
• Includes zero-crossing detection circuitry to provide precise phase information

Sensor And Detector Interfaces Applications

• Camshaft Variable Reluctance Sensor interfaces
• Crankshaft Variable Reluctance Sensor interfaces
• Vehicle speed Variable Reluctance Sensor interfaces

Sensor And Detector Interfaces Procurement Notes

Verify the specific ordering suffix against official documentation to confirm package type and temperature rating. Ensure compatibility with automotive environmental standards if deployed in vehicle systems. Cross-reference pin configurations with application schematics to validate correct integration into the target circuit design.

Sensor And Detector Interfaces Selection Notes

Select this model when external gain configuration flexibility is required, as it exposes all operational amplifier terminals. Compare against the MAX9924 if fixed differential gain and integrated matched resistors are preferred for simplified designs. Evaluate mode selection requirements to determine if internal adaptive thresholds suffice or if external control is necessary.

Sensor And Detector Interfaces Part Context

This component belongs to the MAX9924–MAX9927 family of variable reluctance sensor interfaces. While the MAX9924 offers fixed differential gain, the MAX9925 provides configurable gain by exposing op-amp terminals. The MAX9926 and MAX9927 serve as dual-channel variants of these respective single-channel devices.

Sensor And Detector Interfaces Replacement Considerations

The MAX9924UAUB+ serves as a functional alternative within the same series, offering fixed differential gain rather than adjustable gain. Designers must account for differences in input stage configuration and resistor matching when substituting between these part numbers.