AD7820CQ

Overview

The AD7820CQ is an 8-bit analog-to-digital converter manufactured by Analog Devices Inc. It utilizes a flash architecture and features a single-ended input type with one channel. The device operates on a 5V supply for both analog and digital domains, supporting a parallel data interface. It is housed in a 20-CERDIP package designed for through-hole mounting. The component functions as a sample-and-hold ADC with a 1:1 S/H to ADC ratio. Its operational temperature range spans from -40°C to +85°C.

Feature Summary

• Flash conversion architecture for high-speed digitization
• Integrated sample-and-hold functionality
• Single-ended voltage input configuration
• Parallel digital data output interface

Applications

• Industrial process control systems requiring fast response times
• Data acquisition modules for sensor signal conditioning
• Test and measurement equipment utilizing parallel bus architectures

Procurement Notes

Verify component authenticity through authorized channels due to discontinuation status. Confirm package integrity and pin compatibility during replacement planning. Check RoHS compliance documentation for regulatory adherence. Validate operating temperature specifications against environmental requirements. Review datasheet revisions for any functional updates prior to integration.

Selection Notes

Select this component when an 8-bit resolution and flash architecture are required for specific throughput needs. Ensure the design supports a parallel interface and 5V logic levels. Verify that the through-hole ceramic DIP package fits the PCB layout constraints. Consider the single-ended input limitation if differential signaling is needed elsewhere in the system.

Part Context

This part belongs to the AD7820 series of high-speed analog-to-digital converters. It represents the ceramic dual in-line package variant within the family. The series includes other packages such as SOIC and PDIP options. The component serves as a foundational building block for legacy and specialized industrial data conversion applications.

Replacement Considerations

Direct substitutes include the AD7820LNZ and MX7820KN+. Verify pinout compatibility and electrical parameter alignment before substitution.