MAX1441GUP/V+T

Sensor And Detector Interfaces Overview

The MAX1441GUP/V+T is an automotive-grade, two-channel proximity and touch sensor IC designed for capacitive sensing applications. It operates within a supply voltage range of 5V to 28V, featuring 45V overvoltage protection. The device integrates a MAXQ microcontroller with 2k words of flash memory and 128 bytes of SRAM for customized signal processing. Key electrical specifications include a 100µA operating current, 12-bit digital resolution, and programmable excitation frequencies from 100kHz to 500kHz. It supports independent offset compensation up to 63pF per channel and provides ±2kV ESD protection on sensor I/O lines.

Sensor And Detector Interfaces Feature Summary

• Integrates a MAXQ microcontroller with embedded flash and SRAM for custom algorithm implementation
• Supports two independent grounded electrode capacitive sensing channels with active-guard outputs
• Features spread-spectrum excitation techniques to reduce electromagnetic emissions and interference susceptibility

Sensor And Detector Interfaces Applications

• Automotive passive remote keyless entry (PRKE) systems
• Capacitive proximity sensing in vehicle interiors
• Object detection systems requiring high-voltage tolerance

Sensor And Detector Interfaces Procurement Notes

Verify the specific suffix 'T' indicates tape-and-reel packaging when sourcing this component. Confirm that the part meets AEC-Q100 automotive qualification standards required for your application environment. Ensure compatibility with the 20-TSSOP package dimensions during PCB layout design. Cross-reference the manufacturer datasheet for programming interface requirements using the JTAG pins.

Sensor And Detector Interfaces Selection Notes

Select this component for designs requiring low-power capacitive sensing with integrated processing capabilities. The wide input voltage range and overvoltage protection make it suitable for harsh automotive electrical environments. Consider the available flash memory size if complex discrimination algorithms are needed. Verify that the two-channel architecture aligns with the number of sensors required in the final product design.

Sensor And Detector Interfaces Part Context

This part belongs to Maxim Integrated's family of automotive sensor interfaces. It is specifically engineered for proximity and touch detection tasks where reliability under varying environmental conditions is critical. The integration of a microcontroller distinguishes it from simple sensor front-ends by allowing on-chip data processing.

Sensor And Detector Interfaces Replacement Considerations

Public confirmed substitute part numbers: None identified.