AD8612ARUZ-REEL

Overview

The AD8612ARUZ-REEL is a dual-channel ultrafast comparator from Analog Devices, housed in a 14-lead TSSOP surface-mount package. It operates on a single supply voltage ranging from 3 V to 5 V and features a typical propagation delay of 4 ns at 5 V, with a maximum of 5.5 ns. The device includes a latch function that requires a supply voltage above 4.3 V to remain active. It provides complementary outputs capable of sourcing or sinking up to 10 mA per channel. The input common-mode range extends down to the negative supply rail, and it supports input frequencies up to 100 MHz.

Feature Summary

• Dual-channel architecture with complementary digital outputs for high-speed signal comparison
• Integrated latch function to maintain output state independent of subsequent input changes
• Closely matched propagation delays for rising and falling signals across temperature ranges
• Wide common-mode input range extending to the negative supply rail

Applications

• High speed timing circuits
• Clock recovery and clock distribution systems
• Line receivers
• Digital communications interfaces
• Phase detectors

Procurement Notes

Verify the specific suffix REEL indicates tape-and-reel packaging configuration when ordering. Confirm the RU package designation corresponds to the 14-lead TSSOP form factor required by the PCB layout. Ensure the design accounts for the latch functionality dependency on supply voltage levels exceeding 4.3 V for proper operation.

Selection Notes

Select this component for applications requiring dual comparators with integrated latching capabilities in a compact surface-mount footprint. Consider the 4 ns propagation delay and 100 MHz input frequency limits for high-speed signal processing needs. Evaluate the single-supply operation range against available power rails and ensure thermal management suits the TSSOP package constraints.

Part Context

This part belongs to the AD8611/AD8612 family of ultrafast comparators manufactured by Analog Devices. While the AD8611 offers a single-channel configuration in 8-lead packages, the AD8612 provides dual channels in a 14-lead TSSOP package. Both share identical electrical characteristics and pinout compatibility with legacy parts like the LT1016 and LT1394, offering improved performance metrics.

Replacement Considerations

The AD8611 serves as the single-channel equivalent within the same family. Designs originally using LT1016 or LT1394 comparators can be upgraded to the AD8611 or AD8612 for faster propagation delays and lower power consumption, provided input voltage ranges and bias current directions are accounted for.