AD8564AR-REEL7

Overview

The AD8564AR-REEL7 is a quad 7 ns single-supply comparator manufactured by Analog Devices Inc. It features separate analog and digital power supplies, enabling input stage operation from ±5 V dual supplies or a 5 V single supply while maintaining CMOS/TTL-compatible outputs. The device offers a typical propagation delay of 7 ns (max 9.8 ns), low power consumption with 14 mA analog supply current at 25°C, and an input common-mode voltage range extending to the negative rail. It operates within an industrial temperature range of -40°C to +125°C and is housed in a 16-lead narrow body SOIC package.

Feature Summary

• Features separate analog and digital power supplies to isolate input stages from output switching noise.
• Provides fast 7 ns propagation delay with matched rising and falling signal delays for accurate timing.
• Delivers TTL/CMOS logic-compatible outputs with wide swing capabilities.
• Supports input common-mode voltage ranges extending to the negative supply rail.

Applications

• High speed timing circuits
• Line receivers
• Data communications systems
• High speed V-to-F converters
• PCMCIA cards

Procurement Notes

Verify the specific ordering suffix REEL7 confirms the 16-lead narrow body SOIC package configuration. Ensure the component meets RoHS compliance requirements if indicated by the Z suffix in related part numbers. Confirm that the manufacturer's datasheet specifications align with your system's voltage and thermal constraints before integration.

Selection Notes

Select this component when high-speed comparison with minimal propagation delay variation is required. The independent supply design suits applications needing isolation between sensitive analog inputs and noisy digital outputs. Consider the 16-lead SOIC package for surface-mount assembly needs. Verify that the 40 mA output drive capability matches the load requirements of the downstream logic gates.

Part Context

The AD8564 belongs to Analog Devices' family of high-speed comparators designed for precision timing and data processing. It serves as a direct upgrade for MAX901 designs, offering lower supply currents while maintaining pin compatibility. The quad configuration integrates four independent comparators into a single compact package, optimizing board space for complex signal processing tasks.

Replacement Considerations

The AD8564 is pin-compatible with the MAX901. For single-channel applications requiring latch functionality, the AD8561 is a suitable alternative within the same product family.