FDC1004DSCR

Overview

The FDC1004DSCR 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 features a 16-bit resolution. The device supports I2C communication interfaces and draws a typical supply current of 750 µA. It is housed in a compact 10-pin WSON package with dimensions of 3 mm x 3 mm. The component functions reliably across an extended temperature range from -40 °C to +125 °C.

Feature Summary

• Integrates active shielding capabilities to mitigate system-level parasitic capacitance interference and improve measurement sensitivity.
• Provides high-resolution digital conversion of capacitance changes for precise proximity and touch detection applications.
• Supports flexible sensor configurations through programmable settings for multiple input channels.

Applications

• Capacitive liquid level sensing systems
• Proximity detection modules
• Touch sensor interfaces

Procurement Notes

Verify the specific suffix DSCR against official Texas Instruments documentation to confirm the reel packaging configuration. Ensure compatibility with standard I2C bus protocols during integration. Confirm that the 10-WSON footprint matches the target PCB layout requirements before finalizing procurement decisions.

Selection Notes

Select this component when designing systems requiring multi-channel capacitance measurement with high resolution. Consider the 10-WSON package size for space-constrained layouts. Evaluate the operating temperature range to ensure suitability for environments exceeding standard commercial limits. Verify power consumption constraints against the specified supply current values.

Part Context

This part belongs to the FDC1004 series of capacitance-to-digital converters. Variants such as FDC1004DGSR offer similar functionality in different packages like VSSOP. The FDC1004EVM serves as an evaluation module for development purposes. Automotive-grade versions include the FDC1004-Q1 designation.

Replacement Considerations

The FDC1004DSCT provides equivalent electrical performance in a compatible WSON package. For alternative form factors, the FDC1004DGSR utilizes a VSSOP-10 housing. Verify pinout compatibility and software register settings when substituting these variants.