AD7820LPZ

Overview

The AD7820LPZ is an 8-bit analog-to-digital converter (ADC) manufactured by Analog Devices Inc. It utilizes a flash architecture and features a single-ended input type with one channel. The device employs a parallel data interface for communication. It operates on a 5 V analog supply voltage and a 5 V digital supply voltage, requiring an external reference voltage of 4.75 V. The component is housed in a 20-PLCC package measuring 9x9 mm and supports surface mount installation. It functions within a temperature range of -40°C to +85°C.

Feature Summary

• Flash architecture enables high-speed conversion capabilities.
• Single-ended input configuration simplifies signal interfacing.
• Parallel interface provides direct connectivity to digital systems.

Applications

• Data acquisition systems
• Industrial process control
• Test and measurement equipment

Procurement Notes

Verify the current lifecycle status before procurement as this part may be obsolete or discontinued. Confirm package compatibility with existing PCB footprints. Ensure supply chain availability through authorized distributors. Check for alternative sourcing options if standard inventory is depleted. Validate technical specifications against original design requirements.

Selection Notes

Select this component when an 8-bit resolution and parallel interface are required. Consider the 20-PLCC package constraints for board layout. Evaluate power supply requirements for dual 5 V rails. Assess thermal performance within the specified operating temperature range. Compare against other ADCs if serial interfaces or higher resolutions are needed.

Part Context

This part belongs to the AD7820 series of 8-bit ADCs from Analog Devices. It shares architectural similarities with variants like the AD7820LRZ and AD7820KPZ. These components generally offer comparable performance metrics but differ in packaging and temperature ratings. The series targets applications needing moderate speed and resolution.

Replacement Considerations

Public confirmed substitute part numbers include TLC0820AIFN from Texas Instruments. Verify pinout compatibility and electrical characteristics before substitution. Ensure the replacement meets all system requirements for resolution and interface type.