AD8564ANZ

Overview

The AD8564ANZ is a quad analog 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 at 25°C. Input offset voltage is typically 2.3 mV (max 7 mV), and input bias current is ±4 μA. It operates within an industrial temperature range of -40°C to +125°C and is housed in a 16-lead Plastic Dual In-Line Package.

Feature Summary

• Features separate analog and digital supply sections for independent operation and protection against supply pin interaction.
• Provides TTL and CMOS logic-compatible outputs with wide output swing capabilities.
• Delivers fast 7 ns propagation delay with closely matched rising and falling signal delays across temperature and voltage variations.

Applications

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

Procurement Notes

Verify the specific package type and RoHS compliance status when ordering. Confirm that the supplier provides documentation matching the AD8564ANZ part number. Ensure the component meets the required industrial temperature range specifications for your application environment before finalizing procurement.

Selection Notes

Select this component when high-speed comparison is required with separate analog and digital power domains. It serves as a direct upgrade for MAX901 designs due to lower supply currents. Consider the 16-lead PDIP package for through-hole mounting requirements and verify that the input common-mode range suits the signal source.

Part Context

The AD8564 belongs to the AD8564 family of quad comparators. It is pin-compatible with the MAX901 but offers improved performance characteristics such as lower supply currents. The device is designed for applications requiring precise timing and fast response times in noisy environments.

Replacement Considerations

The AD8564ANZ is a direct replacement for the AD8564AN. Both parts share identical electrical specifications and pin configurations. Verify that any substitute components maintain the same 16-lead PDIP package dimensions and thermal resistance characteristics.

FAQ

Can the AD8564ANZ operate with a single 5V supply?

Yes, the device supports 5V single-supply operation where V+ANA and V+DIG are connected to 5V and V-ANA is grounded, while still providing compatible digital outputs.

What is the input common-mode voltage range?

With a single 5V supply, the range is 0V to 2.75V. With ±5V supplies, the range extends from -4.9V to +3.5V.