ADCMP566BCP

Overview

The ADCMP566BCP is a dual ultrafast voltage comparator fabricated on Analog Devices' proprietary XFCB process. It features a 250 ps propagation delay and less than 35 ps overdrive dispersion. The device operates with dual supplies of +5.0 V and -5.2 V, drawing typical currents of 13 mA and 70 mA respectively. It provides differential ECL compatible outputs capable of driving 50 Ω transmission lines terminated to -2.0 V. Input common-mode range spans from -2.0 V to +3.0 V, with an input differential range of ±5 V. The component is housed in a 32-lead LFCSP package.

Feature Summary

• Ultrafast performance with 250 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 including ESD ratings exceeding 3 kV HBM and 200 V MM.
• Complementary digital outputs fully compatible with ECL 10 K and 10 KH logic families.

Applications

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

Procurement Notes

Verify the specific ordering suffix 'BCP' corresponds to the -40°C to +85°C temperature range and LFCSP-32 package option as listed in the official Analog Devices ordering guide. Confirm that the procurement channel sources genuine components directly from authorized distributors to ensure adherence to the manufacturer's quality standards and reliability specifications.

Selection Notes

Select this component when sub-nanosecond propagation delay and low dispersion are critical for system timing integrity. Ensure the design supports dual power rails of +5 V and -5.2 V and utilizes proper ECL termination techniques. Verify that the PCB layout accommodates the 32-lead LFCSP package dimensions and includes adequate ground planes to minimize stray capacitance and inductance for optimal high-speed performance.

Part Context

The ADCMP566 belongs to Analog Devices' family of ultrafast voltage comparators designed for demanding signal processing applications. Built on the XFCB process, it offers superior speed compared to standard comparators. It serves as a direct replacement for legacy parts like the SPT 9689 in high-frequency test equipment and communication systems requiring precise threshold detection.

Replacement Considerations

The ADCMP566 is documented as a replacement for the SPT 9689 dual ultrafast voltage comparator. When substituting, verify compatibility with existing ECL logic levels and power supply configurations.