ADCMP565BP

Overview

The ADCMP565BP is a dual ultrafast voltage comparator fabricated on Analog Devices' proprietary XFCB process, housed in a 20-lead PLCC package. It features a 300 ps propagation delay with less than 50 ps overdrive dispersion. The device operates from dual supplies of +5.0 V and -5.2 V, drawing typical currents of 13 mA and 70 mA respectively. It offers a 5 GHz equivalent input rise time bandwidth, ±5 V differential input range, and outputs compatible with ECL 10K/10KH logic families.

Feature Summary

• Ultrafast performance with 300 ps propagation delay and minimal overdrive dispersion for high timing accuracy.
• Differential latch control enabling tracking, track-and-hold, or sample-and-hold operational modes.
• Robust input protection with wide common-mode and differential input ranges.
• Complementary digital outputs fully compatible with ECL 10K and 10KH logic families.

Applications

• High speed instrumentation
• Scope and logic analyzer front ends
• Window comparators
• High speed line receivers and signal restoration
• Clock drivers

Procurement Notes

Verify the specific ordering suffix 'BP' to confirm the 20-lead PLCC package option and the industrial temperature range of -40°C to +85°C. Ensure that the procurement documentation explicitly references the Rev. 0 datasheet specifications for propagation delay and power supply sensitivity to guarantee compliance with high-speed design requirements.

Selection Notes

Select this component when sub-nanosecond switching speeds and precise timing consistency are critical. The low overdrive dispersion makes it suitable for applications where input signal amplitude varies significantly. Verify that the system can support the required dual ECL-compatible power rails and termination networks to maintain signal integrity at high frequencies.

Part Context

This device belongs to the ADCMP565 series of ultrafast comparators manufactured by Analog Devices using the XFCB process. It serves as a direct replacement for the SPT 9689 model. The series is designed for demanding high-speed signal processing tasks requiring fast response times and robust noise immunity in professional test and measurement environments.

Replacement Considerations

The ADCMP565BP is documented as a replacement for the SPT 9689 model. Designers should verify pin compatibility and electrical characteristics against the legacy part to ensure seamless integration without circuit modification.

FAQ

How does the ADCMP565 handle varying input overdrive conditions?

The device is specifically designed to minimize propagation delay dispersion, maintaining a variation of typically 50 ps across an overdrive range from 100 mV to 1 V, ensuring consistent timing accuracy regardless of input signal amplitude.

What is the function of the Latch Enable inputs?

The Latch Enable inputs allow the comparator to operate in tracking, track-and-hold, or sample-and-hold modes. When driven to the appropriate logic state, they freeze the output based on the input state at the moment of latching.