ADCMP573BCPZ-WP

Overview

The ADCMP573BCPZ-WP is an ultrafast comparator fabricated on Analog Devices' proprietary XFCB3 Silicon Germanium (SiGe) bipolar process. It features reduced swing PECL (RSPECL) output drivers and latch inputs, offering a propagation delay of 150 ps and a minimum pulse width of 80 ps for 10 Gbps operation. The device supports flexible power supply schemes with single 3.3 V or split input/output supplies. It includes on-chip 50 Ω input terminations, robust input protection against phase reversal, resistor-programmable hysteresis, and differential latch control.

Feature Summary

• Features RSPECL output drivers compatible with common PECL logic families
• Includes differential latch control for capturing input states
• Provides resistor-programmable hysteresis to improve noise immunity
• Offers robust input protection preventing output phase reversal during overdrive

Applications

• Clock and data signal restoration and level shifting
• Automatic test equipment (ATE)
• High speed instrumentation
• Medical imaging and diagnostics
• Threshold detection and peak detectors

Procurement Notes

Verify the specific suffix WP indicates wafer pack configuration rather than standard tape and reel packaging when sourcing components. Confirm that the RSPECL output voltage levels align with the target system's termination requirements, specifically the VCCO minus 2V reference. Ensure proper bypassing of the VCCI and VCCO pins to maintain specified jitter performance.

Selection Notes

Select this component when RSPECL signaling compatibility is required instead of CML outputs found in the ADCMP572 variant. Consider the extended industrial temperature range of -40°C to +125°C for harsh environments. Evaluate the need for latch functionality and programmable hysteresis to simplify circuit design compared to external feedback networks.

Part Context

This part belongs to the ADCMP572/ADCMP573 family of ultrafast comparators designed for high-speed applications up to 10 Gbps. While the ADCMP572 utilizes CML outputs, the ADCMP573 provides RSPECL outputs. Both share identical input characteristics, propagation delay specifications, and package options, differing primarily in the output driver architecture and associated termination voltages.

Replacement Considerations

The ADCMP572BCPZ-WP serves as a direct functional substitute if CML outputs are acceptable instead of RSPECL. Verify that the receiving logic can tolerate the different output voltage swings between CML and RSPECL standards before swapping these variants.