AD8561ARUZ

Overview

The AD8561ARUZ is a single ultrafast comparator in an 8-lead TSSOP package. It features a typical propagation delay of 7 ns at 5 V single supply operation, with a maximum of 9.8 ns over the industrial temperature range of –40°C to +85°C. The device supports supply voltages from 3 V to 10 V or ±5 V dual supplies. Key electrical parameters include a typical input offset voltage of 2.3 mV, a common-mode rejection ratio of 85 dB, and a power supply rejection ratio of 65 dB. It offers complementary digital outputs capable of sourcing or sinking up to 3.2 mA.

Feature Summary

• Features a low power latch function for data retention at the output.
• Provides closely matched rising and falling signal propagation delays that track over temperature.
• Includes a wide common-mode input range extending to the negative supply rail.

Applications

• High speed timing circuits
• Clock recovery and clock distribution systems
• Line receivers and digital communications
• Phase detectors and high speed sampling read channel detection

Procurement Notes

Verify the specific suffix RUZ confirms the 8-lead Thin Shrink Small Outline Package (TSSOP) configuration. Confirm RoHS compliance status indicated by the Z suffix if required. Ensure the operating environment stays within the specified –40°C to +85°C industrial temperature range. Check absolute maximum ratings regarding total supply voltage and input voltage limits during integration.

Selection Notes

Select this component when a fast response time with low power consumption is required. The AD8561 serves as a direct pin-compatible upgrade for LT1016 designs, offering lower supply current and wider input common-mode range. Consider the complementary output structure for driving logic interfaces directly without additional pull-up resistors in standard applications.

Part Context

This part belongs to the AD8561 family of ultrafast single-supply comparators manufactured by Analog Devices. The series includes variants such as the AD8561ANZ in DIP packaging and the AD8561ARZ in SOIC packaging. All variants share the same core electrical characteristics and pinout compatibility with legacy components like the LT1016.

Replacement Considerations

The AD8561 is explicitly documented as a pin-compatible replacement for the LT1016. Designers should account for differences in input voltage range, bias current direction, and propagation delay when migrating from the LT1016 to ensure proper circuit operation.