AD8564AR-REEL

Overview

The AD8564AR-REEL is a quad 7 ns single-supply comparator manufactured by Analog Devices Inc. It features separate analog and digital power supplies, enabling 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, with a maximum of 9.8 ns under specified conditions. Input characteristics include an offset voltage of up to 7 mV and bias current of ±4 μA. 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 independent analog and digital power supply sections to prevent pin interaction and allow flexible input/output voltage configurations.
• Provides fast 7 ns propagation delay with consistent timing for rising and falling signals across temperature and voltage variations.
• Delivers wide output swing with TTL and CMOS logic-compatible outputs capable of driving significant loads.

Applications

• High speed timing circuits
• Line receivers
• Data communications systems
• High speed sampling systems

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm package type and RoHS compliance status. Ensure the procurement channel provides valid traceability for the component lot. Confirm that the received parts match the specified 16-lead narrow body SOIC form factor and intended industrial temperature grade before integration into production designs.

Selection Notes

Select this component when high-speed switching with low propagation delay is required alongside flexible supply voltage options. The separate analog and digital supplies make it suitable for noisy environments where supply isolation is critical. Consider its pin compatibility with legacy MAX901 designs if upgrading existing systems. Evaluate the input common-mode range and output drive capabilities against specific load requirements.

Part Context

The AD8564 belongs to Analog Devices' family of high-speed comparators designed for precision timing applications. It serves as a modern alternative to older discrete solutions or competing integrated comparators, offering improved speed and lower power consumption. The quad configuration allows multiple comparison functions within a single compact package, reducing board space and design complexity.

Replacement Considerations

The AD8564 is pin-compatible with the MAX901. Designers upgrading from MAX901 should verify that the supply current and input characteristics meet their specific circuit requirements.