MCHPCAP1298-1-SL-TR
Overview
The CAP1298-1-SL-TR is an 8-channel capacitive touch sensor controller designed for high-sensitivity human-device interface applications. It operates from 3V to 5.5V and features integrated Signal Guard technology to reduce noise interference, making it suitable for environments with high electromagnetic interference. The device communicates over SMBus or I2C and includes advanced features like proximity detection and multiple button pattern recognition.
Why Choose This Part
This controller provides robust performance through digital EMI blockers and RF detection filters that mitigate system noise. It simplifies design by automatically calibrating for parasitic capacitance and offering individual sensitivity thresholds for each of the eight channels. Low power consumption is a key benefit, with a shutdown current of only 5uA and a dedicated standby mode consuming 50uA.
Applications
Getting Started
To evaluate this sensor, use a host microcontroller with an I2C or SMBus peripheral to access the device registers. Begin by configuring the sensitivity and threshold registers to match your specific electrode geometry and overlay thickness. Microchip provides the CAP1298 Evaluation Board (EVB-CAP1298) for rapid prototyping and hardware testing.
CAP1298-1 Family
| Part Number | Difference | Stock |
|---|---|---|
| CAP1298-1-SL | SOIC-14 | 10,952 |
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