AD96687BQ

Overview

The AD96687BQ is a dual ultrafast voltage comparator in a 16-pin ceramic DIP package. It operates with +5.0 V and -5.2 V supplies, consuming 118 mW per comparator. The device features a 2.5 ns typical propagation delay and 50 ps delay dispersion. Outputs are open-emitter ECL-compatible signals requiring external pull-down resistors. It includes latch enable inputs for track-hold or sample-hold modes.

Feature Summary

• Ultrafast switching performance with minimal propagation delay variation across input overdrive levels
• Integrated latch functionality enabling precise track-hold and sample-hold operational modes
• High precision differential input stage supporting wide common-mode voltage ranges
• Complementary open-emitter outputs directly compatible with standard ECL logic families

Applications

• High speed trigger circuits
• Threshold detection systems
• Window comparator configurations
• Peak detector applications

Procurement Notes

Verify the specific BQ suffix indicates the 16-lead ceramic DIP package variant when sourcing. Confirm that the industrial temperature range of -25°C to +85°C aligns with environmental requirements. Ensure supply voltages remain stable within ±5% to maintain specified electrical characteristics and timing accuracy during operation.

Selection Notes

Select this component for designs requiring high-speed signal comparison with low timing jitter. The dual configuration allows independent processing of two channels within a single package footprint. Consider the open-emitter output requirement for proper termination and impedance matching in high-speed PCB layouts to prevent signal ringing.

Part Context

This device belongs to the AD96685/AD96687 family of ultrafast comparators manufactured by Analog Devices. While the AD96685 provides a single channel, the AD96687 offers dual channels with identical speed specifications. The BQ suffix specifically denotes the dual-channel version housed in a 16-pin ceramic DIP package suitable for industrial temperature operations.

Replacement Considerations

The AD96687BR serves as a direct functional substitute in a 16-pin SOIC package. The AD96687BP provides equivalent performance in a 20-lead PLCC package. All variants share identical electrical specifications and pinout compatibility for the active pins.