MCHPCAP1203-1-AC3-TR
Overview
The CAP1203 is a 3-channel capacitive touch sensor controller featuring integrated analog filtering and automatic recalibration. It is designed to simplify the implementation of touch buttons by handling parasitic capacitance and environmental noise internally, communicating state changes over I2C or SMBus.
Why Choose This Part
This sensor offers robust EMI protection with a digital blocker and RF detection filters to prevent false triggers. It simplifies firmware development by providing individual thresholds per channel and a dedicated Multiple Button Pattern detection mode for power button logic.
Applications
Getting Started
Connect the CAP1203 to a microcontroller via the I2C bus and pull the ALERT pin to an interrupt-capable GPIO. Developers can evaluate performance using the Microchip CAP1203 Evaluation Board (ADM00714) and configure sensitivity registers to match their specific overlay material and thickness.
CAP1203-1 Family
| Part Number | Difference | Stock |
|---|---|---|
| CAP1203-1-SN-TR Tape & Reel | SN-TR | 10,007 |
| CAP1203-1-SN | SN | 14,975 |
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