LC717A30UJ-AH

Overview

The LC717A30UJ-AH is a capacitance-to-digital converter LSI designed for capacitive touch sensors. It features eight sensing channels and supports I2C and SPI interfaces. The device operates within a supply voltage range of 2.6 V to 5.5 V and functions between -40°C and +105°C. It is housed in an SSOP-30 package and holds AEC-Q100 qualification. This component detects minute capacitance changes using mutual capacitance techniques.

Feature Summary

• Detects low-level capacitance variations down to the femtofarad range using mutual capacitance technology.
• Incorporates built-in noise suppression mechanisms to mitigate electromagnetic interference effects.
• Eliminates parasitic capacitance to enhance detector sensitivity and overall system performance.

Applications

• Systems requiring multiple switch inputs
• Capacitive touch sensor interfaces
• Proximity sensing applications

Procurement Notes

Verify current availability status as this component may be subject to discontinuation or limited supply conditions. Confirm RoHS compliance details and moisture sensitivity levels before procurement. Ensure compatibility with existing design constraints regarding operating temperature ranges and interface protocols.

Selection Notes

Select this component for designs requiring high dynamic range detection and robust EMI immunity. Consider the eight-channel configuration for multi-switch systems. Verify that the SSOP-30 package fits the board layout requirements. Ensure the controller supports the required I2C or SPI communication standards.

Part Context

This part belongs to the LC717A30UJ series from onsemi, focusing on capacitance-digital conversion for touch sensing. It represents a specialized solution integrating high sensitivity with noise suppression capabilities. The series targets automotive and industrial applications demanding reliable touch interaction.

Replacement Considerations

Check for direct substitutes within the LC717A30 family. Evaluate alternative capacitance-to-digital converters with similar channel counts and interface support. Verify pinout compatibility and electrical specifications before substitution.