AD8564ARU-REEL

Overview

The AD8564ARU-REEL is a quad 7 ns single-supply comparator from Analog Devices, housed in a 16-lead Thin Shrink Small Outline Package (TSSOP). It features separate analog and digital power supplies to minimize interaction. The device operates with a typical propagation delay of 7 ns and supports CMOS/TTL logic-compatible outputs. Key electrical parameters include an input offset voltage of 2.3 mV typ/7 mV max, input bias current of ±4 μA, and output drive capability up to 40 mA. It functions within an industrial temperature range of -40°C to +125°C.

Feature Summary

• Features separate analog and digital supply sections for independent operation and interference protection.
• Provides fast 7 ns propagation delay suitable for high-speed timing and data communications.
• Delivers TTL/CMOS logic-compatible outputs with wide swing and high drive current.
• Supports rail-to-rail differential input common-mode range extending to the negative supply.

Applications

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

Procurement Notes

Verify the specific package variant RU-16 against design requirements. Confirm RoHS compliance status if required by environmental regulations. Ensure the reel packaging matches automated assembly equipment specifications. Validate that the operating temperature range meets system constraints. Cross-reference pin configurations with schematic designs to prevent installation errors.

Selection Notes

Select this component when high-speed comparison with low propagation delay is critical. The separate supply architecture benefits designs requiring isolation between analog inputs and digital outputs. Consider the TSSOP package for space-constrained surface-mount applications. Evaluate thermal resistance characteristics for PCB layout planning under maximum load conditions.

Part Context

This part belongs to the AD8564 family of quad comparators designed for general-purpose high-speed applications. It serves as a direct upgrade for MAX901 designs with lower supply currents. The device integrates four independent comparators into a single compact package, simplifying board layout compared to discrete solutions or single-channel alternatives.

Replacement Considerations

The datasheet identifies the AD8564 as pin-compatible with the MAX901. Designers upgrading from MAX901 should verify supply current differences and ensure compatibility with existing circuit topologies without modification.