PCAP04-ASDW-100

ADCs/DACs - Special Purpose Overview

The PCAP04-ASDW-100 is a capacitance-to-digital converter (CDC) from ScioSense, featuring an integrated 32-bit DSP for on-chip data post-processing. It supports up to six grounded or three floating capacitors with a measurement range of 1pF to 100nF. The device offers up to 20-bit resolution and sample rates up to 50kHz. Operating voltages range from 2.1V to 3.6V, with supply currents as low as 3μA. Communication interfaces include SPI, I²C, PDM, and PWM. The -A suffix indicates an extended operating temperature range of -40°C to +125°C.

ADCs/DACs - Special Purpose Feature Summary

• Integrated 32-bit DSP for linearization and temperature compensation
• Capacitance input range from 1pF to 100nF with up to 20-bit resolution
• Supports single-ended and differential sensor configurations
• Low power consumption down to 3μA at 2.5Hz

ADCs/DACs - Special Purpose Applications

• Position sensors
• Pressure sensors
• Force sensors
• Proximity sensors
• Level sensors

ADCs/DACs - Special Purpose Procurement Notes

Verify the specific ordering suffix against the manufacturer's current catalog to confirm package type and temperature grade. Ensure compatibility with system voltage levels and interface requirements before procurement.

ADCs/DACs - Special Purpose Selection Notes

Select this component for applications requiring high-resolution capacitance measurements with onboard signal processing. Consider the -A variant for environments exceeding 85°C. Evaluate power budget constraints given the variable current draw based on conversion rate and resolution settings.

ADCs/DACs - Special Purpose Part Context

This part belongs to the PCAP04 family of capacitance-to-digital converters. The PCAP04 series utilizes the PICOCAP principle for flexible conversion regarding power, resolution, and speed. It is designed for various sensing tasks including humidity, tilt, and angle detection.

ADCs/DACs - Special Purpose Replacement Considerations

Check ScioSense documentation for alternative models within the PCAP04 family that may offer different pinouts or feature sets. Verify if other manufacturers provide CDCs with similar channel counts and resolution specifications.