ADCMP553BRMZ

Overview

The ADCMP553BRMZ is a single-supply, high-speed comparator fabricated on Analog Devices' proprietary XFCB process. It features a 500 ps propagation delay with less than 125 ps overdrive dispersion. The device provides differential PECL/LVPECL compatible outputs capable of driving 50 Ω transmission lines directly. It includes a latch input for track-and-hold or sample-and-hold modes and operates within a supply voltage range of 3.135 V to 5.25 V. The component is housed in an 8-lead MSOP package and supports an industrial temperature range from -40°C to +85°C.

Feature Summary

• Differential PECL/LVPECL compatible outputs provide sufficient drive current for direct transmission line termination.
• Integrated latch enable inputs support tracking, track-and-hold, or sample-and-hold operational modes.
• Internal pull-up resistors on latch pins default the device to transparent tracking mode when left unconnected.
• Designed for low overdrive dispersion to maintain consistent timing accuracy across varying input conditions.

Applications

• Automatic test equipment
• High speed instrumentation
• Scope and logic analyzer front ends
• Window comparators
• High speed triggers

Procurement Notes

Verify that the specific ordering suffix matches the required package type and temperature grade. Confirm power supply requirements align with the specified dual or single supply voltage ranges. Ensure PCB layout adheres to high-speed design guidelines, including ground plane usage and proper bypass capacitor placement near supply pins. Check datasheet specifications for absolute maximum ratings to prevent damage during operation.

Selection Notes

Select this component for applications requiring minimal propagation delay variation under different overdrive conditions. The 8-lead MSOP package suits space-constrained designs compared to larger QSOP options. Consider the internal latch functionality if signal acquisition timing control is necessary. Verify compatibility with PECL or LVPECL logic families for output interfacing without additional level shifting circuitry.

Part Context

This part belongs to the ADCMP551/ADCMP552/ADCMP553 family of single-supply high-speed comparators. While sharing core performance characteristics like propagation delay and output types, the ADCMP553 differs by utilizing an 8-lead MSOP package and containing a single comparator channel. Other family members offer multiple channels or larger packages but share the same underlying XFCB fabrication technology.

Replacement Considerations

Direct substitutes include ADCMP551BRMZ and ADCMP552BRMZ, though these differ in package size and channel count. Verify pinout compatibility and electrical specifications before substitution. No other cross-family replacements are confirmed in public documentation.