AD7820UQ

Overview

The AD7820UQ is an 8-bit CMOS analog-to-digital converter (ADC) manufactured by Analog Devices Inc. It utilizes a flash architecture and features a single-ended input type with parallel data interface. The device operates on dual 5 V analog and digital power supplies, consuming 40 mW of power dissipation. It supports an external reference voltage of 4.75 V and functions within a temperature range of -40°C to +85°C. This component is housed in a surface-mount package suitable for industrial applications requiring fast conversion rates and low noise performance.

Feature Summary

• 8-bit resolution with flash architecture for high-speed conversion
• Parallel output interface compatible with microcontrollers
• Low power consumption of 40 mW at 5 V supply
• Industrial temperature range from -40°C to +85°C

Applications

• Industrial control systems
• Medical equipment
• Test and measurement instruments

Procurement Notes

Verify availability status as the AD7820 series may have limited stock or be subject to restricted supply conditions. Confirm the specific suffix 'UQ' corresponds to the required package and temperature grade before ordering, as availability varies by distributor.

Selection Notes

Select this component when an 8-bit resolution and parallel interface are required for cost-effective data acquisition. Ensure the system design accommodates the 5 V dual-supply requirement and external reference voltage. Compare against successive-approximation ADCs if lower power or serial interfaces are preferred over speed.

Part Context

The AD7820UQ belongs to the AD7820 family of 8-bit CMOS A/D converters. This series is designed for applications needing fast conversion times and simple interfacing. The 'UQ' suffix typically denotes a specific package variant and temperature rating within the broader AD7820 product line.

Replacement Considerations

Check for direct pin-compatible replacements within the AD7820 family. Consider other 8-bit flash ADCs from Analog Devices or competitors if the AD7820UQ is discontinued or unavailable, ensuring interface and speed requirements are met.