SX9500 Datasheet PDF | Semtech Corporation

Semtech Corporation SX9500

The SX9500 is a low-cost, very low power 4-channel capacitive controller that can operate either as a proximity or button sensor. The SX9500 includes sophisticated on-chip auto-calibration circuitry to regularly perform sensitivity adjustments, maintaining peak performance over a wide variation of temperature, humidity and noise environments, providing simplified product development and enhanced performance. The SX9500 operates directly from an input supply voltage of 2.7 to 5.5V, and includes a separate I2C serial bus supply input to enable communication with 1.8 – 5.5V hosts.

Part No.	SX9500
Datasheet	SX9500 Download
Manufacturer	Semtech Corporation
Description	Four Channels Capacitive Proximity / Button Solution
Buy	Stock & Price

GENERAL DESCRIPTION

The I2C serial communication bus reports proximity or touch detection and is used to facilitate parameter settings adjustment. Upon a proximity detection, the NIRQ output asserts, enabling the user to either determine the relative proximity distance, or simply obtain an indication of detection. A dedicated transmit enable (TXEN) pin is available to synchronize capacitive measurements for applications that require synchronous detection, enabling very low supply current and high noise immunity by only measuring proximity when requested. KEY PRODUCT

FEATURES

2.7 – 5.5V Input Supply Voltage Capacitive Sensor Inputs Down to 0.08 fF Capacitance Resolution Stable Proximity & Touch Sensing With Temperature Capacitance Offset Compensation to 30pF Active Sensor Guarding Automatic Calibration Ultra Low Power Consumption: Active Mode: Doze Mode: Sleep Mode: 170 uA 18 uA 2.5 uA 400KHz I2C Serial Interface Four programmable I2C Sub-Addresses Input Levels Compatible with 1.8V Host...