ADCMP581BCPZ-RL7

Overview

The ADCMP581BCPZ-RL7 is an ultrafast voltage comparator fabricated on a Silicon Germanium (SiGe) bipolar process. It features reduced swing ECL output drivers designed to drive 400 mV into 50 Ω terminated lines referenced to −2 V. The device provides a wide input range of −2 V to +3 V with ±5 V supplies and includes on-chip 50 Ω input terminations. Key performance metrics include a propagation delay of 180 ps, 100 ps minimum pulse width, and low jitter characteristics.

Feature Summary

• Features reduced swing ECL output drivers for direct interfacing with high-speed logic families
• Includes internal 50 Ω termination resistors at both differential input pins
• Supports resistor-programmable hysteresis for noise immunity control
• Provides differential latch enable inputs for signal acquisition and holding

Applications

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

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation to confirm package type and reel specifications. Ensure that the supply voltages match the required operating conditions for the NECL output stage. Confirm thermal management requirements for the LFCSP package in the target application environment.

Selection Notes

Select this component when low propagation delay dispersion and high bandwidth are critical. The NECL output stage is suitable for systems requiring negative ECL logic levels. Consider the ADCMP580 or ADCMP582 if CML or PECL outputs are preferred instead of the NECL configuration provided by the ADCMP581.

Part Context

This part belongs to the ADCMP580/ADCMP581/ADCMP582 family of ultrafast comparators. All three variants share identical input characteristics and SiGe fabrication processes but differ in their output driver configurations. The ADCMP581 specifically utilizes reduced swing ECL outputs, distinguishing it from the CML and PECL options within the same series.

Replacement Considerations

The ADCMP580BCPZ-RL7 and ADCMP582BCPZ-RL7 are confirmed substitutes within the same product family. These alternatives offer identical input performance but feature CML and PECL output stages, respectively, which may require different termination networks.