ADCMP581BCPZ-WP

Overview

The ADCMP581BCPZ-WP is an ultrafast voltage comparator fabricated on Analog Devices' proprietary XFCB3 Silicon Germanium (SiGe) bipolar process. It features reduced swing ECL (negative ECL) output drivers designed to directly drive 400 mV into 50 Ω terminated lines referenced to −2 V. The device offers a propagation delay of 180 ps and supports 10 Gbps operation with low jitter characteristics, including 200 fs random jitter. It operates with ±5 V supplies, providing a wide input range from −2 V to +3 V.

Feature Summary

• Ultrafast response with 180 ps propagation delay and 100 ps minimum pulse width capability for high-speed data rates.
• Integrated reduced swing ECL output stage optimized for direct driving of 50 Ω transmission lines terminated to −2 V.
• On-chip 50 Ω termination resistors at both differential input pins with configurable open or active states.
• Differential latch control functionality allowing signal acquisition and holding with programmable hysteresis via external resistor.

Applications

• Automatic test equipment (ATE)
• High speed instrumentation
• Medical imaging and diagnostics
• Clock and data signal restoration

Procurement Notes

Verify the specific suffix WP against official documentation to confirm environmental compliance or packaging variations. Ensure supply voltages match the required ±5 V configuration for proper NECL operation. Confirm thermal management requirements for the 16-lead LFCSP package in your specific layout environment.

Selection Notes

Select this component when negative ECL logic levels are required for system compatibility. Consider the ADCMP580 if CML outputs are preferred, or the ADCMP582 if PECL outputs are necessary. Evaluate the need for on-chip input termination versus external matching based on source impedance constraints.

Part Context

This part belongs to the ADCMP580/ADCMP581/ADCMP582 family of ultrafast comparators. While sharing identical core performance metrics such as propagation delay and bandwidth, the family is distinguished by its output driver type: CML for the ADCMP580, NECL for the ADCMP581, and PECL for the ADCMP582.

Replacement Considerations

Direct functional replacements within the same family include the ADCMP580BCPZ-WP and ADCMP582BCPZ-WP, provided the system can accommodate their respective CML and PECL output voltage levels instead of the NECL levels specified for the ADCMP581.