MCHPAT42QT1010
Overview
The AT42QT1010 is a dedicated digital burst mode charge-transfer capacitive sensor designed for a single touch key. It functions as a drop-in replacement for mechanical buttons, providing a simple digital output while handling complex calibration and noise filtering internally.
Why Choose This Part
The device features patented spread-spectrum technology for high EMI immunity and moisture tolerance, ensuring reliable operation in noisy environments. It includes self-calibration and auto-drift compensation, which allows the sensor to adapt to changing environmental conditions without manual tuning.
Applications
Key Specifications
Getting Started
To begin, connect a sampling capacitor (Cs) to the SNS pins to set the touch sensitivity; higher values increase sensitivity. The SYNC/MODE pin allows for power mode selection (Fast or Low Power) or synchronization with external noise sources to minimize interference.
AT42QT1010 Family
Comparing specs that differ across variants. The current part is highlighted.
| Part Number | Package | Stock |
|---|---|---|
| AT42QT1010 (this part) | 6-23 | 37,801 |
| AT42QT1010-MAHR | UFDFN-8 | 28,182 |
| AT42QT1010-TSHR | 6-23 | 62,727 |
