AD7147P-WAFER

Overview

The AD7147P-WAFER is a wafer-level capacitance-to-digital converter from Analog Devices, designed for single-electrode capacitance sensors. It features a 16-bit resolution and supports up to 13 channels with a sampling rate of 250 kSPS. The device integrates an I²C and SPI interface for data communication. Operating within a temperature range of -40°C to +85°C, it is qualified under AEC-Q100 standards, ensuring reliability for automotive applications.

Feature Summary

• Capacitance-to-digital conversion capability for single-electrode sensors
• Supports both I²C and SPI digital interfaces
• AEC-Q100 qualification for automotive environment suitability

Applications

• Single-electrode capacitive touch sensor systems
• Automotive human-machine interface (HMI) controls
• Capacitive sensing in industrial environments

Procurement Notes

Verify the specific wafer lot and die specifications required for your manufacturing process. Confirm that the AEC-Q100 qualification meets your automotive grade requirements. Ensure compatibility with your system's voltage levels and interface protocols before integration.

Selection Notes

Select this component when designing for single-electrode capacitance sensing applications requiring high resolution and automotive reliability. Consider the wafer form factor for custom packaging solutions. Evaluate the need for I²C or SPI connectivity based on your system architecture constraints.

Part Context

This part belongs to the AD7147 series of programmable controllers for capacitance sensors. It is offered as a bare wafer, allowing for custom dicing and packaging. The series is targeted at professional applications requiring precise capacitance measurement capabilities.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult Analog Devices technical support for potential alternatives if this specific wafer configuration is unavailable.