AD7820KRZ

Overview

The AD7820KRZ 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 a parallel data interface. The device operates on a 5 V supply voltage and is housed in a 20-PLCC package. It supports sampling rates up to 1 MSPS and includes an external reference type configuration. The component is designed for surface-mount installation and functions within a temperature range of -40°C to +85°C.

Feature Summary

• Flash architecture for high-speed conversion
• Parallel digital output interface
• Single-ended input signal processing

Applications

• Industrial process control systems
• Data acquisition modules
• Instrumentation equipment

Procurement Notes

Verify the specific suffix KRZ against the official datasheet to confirm the 20-PLCC package and commercial/industrial temperature range specifications. Ensure compatibility with existing board layouts requiring this specific footprint. Cross-reference the manufacturer's latest documentation for any discontinuation notices or lifecycle status updates before finalizing procurement plans.

Selection Notes

Select this component when an 8-bit resolution and parallel interface are required for moderate-speed applications. Consider the 20-PLCC package constraints for PCB design. Evaluate power consumption requirements against the 5V supply operation. Compare performance metrics such as sampling rate and SNR with alternative ADC families if higher precision or different interfaces are needed.

Part Context

This part belongs to the AD7820 series of 8-bit ADCs from Analog Devices. The series typically offers various package options including PLCC, PDIP, and SOIC. The AD7820KRZ specifically denotes the plastic leaded chip carrier variant. It shares core architectural similarities with other members of the family but differs in physical packaging and pinout dimensions.

Replacement Considerations

Publicly documented substitutes include the TLC0820AIFN from Texas Instruments. Verify electrical parameter equivalence and pin compatibility before substitution.