AD96687BRZ

Overview

The AD96687BRZ is a dual ultrafast voltage comparator from Analog Devices, housed in a 16-lead SOIC package. It operates with +5.0 V and -5.2 V supplies, consuming 18 mA per channel at 25°C. The device features a propagation delay of 3.5 ns typical and 50 ps dispersion. Outputs are open-emitter ECL compatible, requiring external pull-down resistors to -2.0 V. It supports an input common-mode range from -2.5 V to +5.0 V and functions within an industrial temperature range of -25°C to +85°C.

Feature Summary

• Ultrafast dual comparator architecture with 50 ps propagation delay dispersion for high timing accuracy across varying overdrive conditions.
• Complementary open-emitter outputs fully compatible with ECL 10K and 10KH logic families, capable of directly driving transmission lines.
• Integrated latch enable inputs allowing track-hold or sample-hold modes of operation for precise signal capture.

Applications

• High speed triggers
• Threshold detectors
• Window comparators

Procurement Notes

Verify the specific suffix BRZ corresponds to the 16-pin SOIC industrial grade variant when sourcing. Confirm supply voltage stability within ±5% for normal operation, as the negative supply is sensitive to variations. Ensure proper ESD precautions are taken during handling due to the device's sensitivity. Check datasheet revision D for the most current electrical characteristics and absolute maximum ratings before finalizing procurement specifications.

Selection Notes

Select the AD96687BRZ when a dual-channel solution is required alongside the single-channel AD96685BRZ. Consider the 16-pin SOIC package for surface mount applications where space is constrained compared to the PLCC or DIP options. Ensure the design accommodates the necessary ECL termination resistors and decoupling capacitors for both positive and negative supplies to maintain performance.

Part Context

The AD96687BRZ belongs to the AD96685/AD96687 family of ultrafast comparators manufactured by Analog Devices. This series is designed for applications demanding minimal propagation delay and low dispersion. The BRZ suffix indicates the RoHS-compliant version of the standard AD96687BR part number, packaged in a 16-lead Small Outline Integrated Circuit (SOIC) suitable for industrial temperature ranges.

Replacement Considerations

The AD96687BP serves as a pin-compatible alternative in a 20-lead PLCC package. The AD96687BQ offers the same functionality in a 16-lead DIP package. For single-channel requirements, the AD96685BR provides equivalent speed in a 16-lead SOIC format.