ADCMP581BCP-WP

Overview

The ADCMP581BCP-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 transmission lines terminated to −2 V. The device offers a propagation delay of 180 ps and supports 10 Gbps operation with 200 fs random jitter. It operates with ±5 V power supplies, providing a wide input range from −2 V to +3 V. Key specifications include 25 ps overdrive dispersion, 100 ps minimum pulse width, and 37 ps typical output rise/fall time.

Feature Summary

• Features reduced swing negative ECL output drivers for direct interfacing with standard transmission line terminations.
• Incorporates on-chip 50 Ω termination resistors at both the noninverting and inverting input pins.
• Includes resistor-programmable hysteresis and differential latch control capabilities.
• Provides high power supply rejection exceeding 70 dB across operating conditions.

Applications

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

Procurement Notes

Verify that the specific ordering suffix WP corresponds to the required package or environmental rating by consulting the manufacturer's official documentation. Confirm that the negative ECL output stage aligns with the system's logic level requirements and termination voltages. Ensure proper bypassing of the VEE, VCCI, and VCCO supply pins to maintain specified performance characteristics.

Selection Notes

Select this component when low propagation delay and minimal jitter are critical for high-speed signal processing. The integrated input termination simplifies board layout for 50 Ω environments. Consider the NECL output compatibility with existing receiver infrastructure. Evaluate thermal management requirements due to the compact LFCSP package and power dissipation levels.

Part Context

This part belongs to the ADCMP580/ADCMP581/ADCMP582 family of ultrafast comparators. While the ADCMP580 provides CML outputs and the ADCMP582 offers PECL outputs, the ADCMP581 specifically utilizes reduced swing ECL drivers. All variants share identical input characteristics, propagation delay, and latch functionality within the same 16-lead LFCSP package.

Replacement Considerations

Public confirmed substitute part numbers: None available.