AD7147P-1WAFER

Overview

The AD7147P-1WAFER is a wafer-level component of the CapTouch Programmable Controller for single-electance sensors, manufactured by Analog Devices Inc. This device integrates capacitance sensing capabilities with programmable control logic. It operates within a supply voltage range of 2.6 V to 3.6 V and supports SPI interface communication. The component is designed for industrial temperature ranges, functioning between -40°C and +85°C. As a wafer form factor, it serves as the foundational die for subsequent packaging or direct integration into specific substrate technologies.

Feature Summary

• Capacitance sensing controller optimized for single-electrode configurations
• SPI digital interface for data transfer and configuration
• Operating voltage range of 2.6 V to 3.6 V
• Industrial temperature rating from -40°C to +85°C

Applications

• Capacitive touch sensor development
• Single-electrode capacitance measurement systems
• Embedded control applications requiring capacitive input

Procurement Notes

This item is supplied in wafer format rather than discrete packaged units. Verification of the specific wafer lot, die condition, and handling requirements is essential prior to procurement. Standard distribution channels may list this under evaluation or raw material categories. Confirm availability status directly with authorized suppliers as stock levels fluctuate.

Selection Notes

Select this part when a bare die solution is required for custom packaging or specialized substrate integration. Ensure the design environment supports wafer-level handling and testing. Verify that the target application can accommodate the SPI interface timing and the specified voltage range without additional level shifting if operating at the lower end of the spectrum.

Part Context

The AD7147P-1WAFER belongs to the AD7147 family of CapTouch controllers. While the EVAL-AD7147EBZ provides a complete evaluation platform using packaged versions, the WAFER variant provides the underlying silicon for mass production or custom module fabrication. It shares core functional specifications with its packaged counterparts but differs in physical form factor and handling protocols.

Replacement Considerations

Direct replacement requires matching the AD7147 functionality. For packaged equivalents, consider the AD7147A series. Ensure any substitute maintains compatibility with single-electrode capacitance sensing architectures and SPI communication standards.