AD7820KN

Overview

The AD7820KN is an 8-bit analog-to-digital converter (ADC) manufactured by Analog Devices Inc. It utilizes a half-flash architecture and features a single-ended input type with parallel data interface. The device operates within a supply voltage range of 4.75 V to 5.25 V, consuming 450 mW of power dissipation. It supports a sampling rate of 500 kS/s and includes an internal voltage reference. The component is housed in a 20-pin PDIP package designed for through-hole mounting. It functions as a track-and-hold ADC with a conversion time of 1.3 µs and operates across a temperature range of 0°C to +70°C.

Feature Summary

• Integrates a built-in voltage reference to simplify system design
• Employs a half-flash architecture for rapid signal conversion
• Combines track-and-hold functionality with the ADC core

Applications

• Industrial process control systems requiring fast data acquisition
• Portable instrumentation utilizing single-supply operation
• Data acquisition modules in automated test equipment

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status via official documentation. Check current lifecycle status as availability may be limited due to obsolescence. Ensure packaging integrity matches specified tube quantities upon receipt.

Selection Notes

Select this component when an 8-bit resolution and 500 kS/s throughput are required. Consider the internal reference feature if external precision references are undesirable. Verify that the parallel interface and PDIP-20 package align with the target PCB layout constraints.

Part Context

The AD7820KN belongs to the MX7820/AD7820 family of high-speed ADCs from Analog Devices. This series is characterized by its combination of speed and low power consumption. The KN suffix typically denotes the specific package and temperature grade configuration within the broader product line.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.