FDC1004DSCT

Overview

The FDC1004DSCT is a four-channel capacitance-to-digital converter manufactured by Texas Instruments, designed for capacitive sensing solutions. It operates within a supply voltage range of 3 V to 3.6 V and draws a typical supply current of 750 µA. The device features a 16-bit resolution and communicates via an I2C interface. It is housed in a 10-pin WSON package with dimensions of 3.1 mm x 3.1 mm x 0.75 mm. The component supports surface mount installation and functions reliably across an operating temperature range from -40 °C to +85 °C.

Feature Summary

• Provides high-resolution 16-bit capacitance-to-digital conversion for precise sensing applications
• Integrates active shielding capabilities to mitigate interference and concentrate the sensing area
• Supports contactless detection of various materials including skin, plastic, metal, and liquids

Applications

• Proximity and gesture detection systems
• Liquid level sensing and material analysis
• Capacitive touch sensor interfaces

Procurement Notes

Verify the specific suffix DSCT corresponds to the tape and reel packaging format required for automated assembly processes. Confirm that the operating temperature grade aligns with the system's thermal requirements, as industrial variants may differ. Ensure the I2C address configuration matches the target controller's bus topology before finalizing procurement orders.

Selection Notes

Select this component when a low-power, multi-channel capacitance measurement solution is required. The 16-bit resolution offers sufficient precision for most proximity and liquid level applications. Consider the 10-pin WSON footprint constraints during PCB layout. Verify compatibility with the host microcontroller's I2C speed and voltage levels to ensure reliable communication without additional level shifting.

Part Context

This part belongs to the FDC1004 family of capacitance-to-digital converters. Other variants include DGSR and DSCJ packages, offering different form factors while maintaining identical electrical functionality. The EVM version serves as a development tool for evaluating sensor designs. This specific DSCT suffix denotes the cut tape or reel packaging option for high-volume manufacturing integration.

Replacement Considerations

Direct pin-compatible substitutes within the same family include FDC1004DSCR and FDC1004DGSR. These alternatives share the same core functionality but differ in package type (WSON vs. VSSOP) or shipping format. Automotive-grade versions like FDC1004-Q1 are available if AEC-Q100 qualification is required.