LMH6551MMX/NOPB

Overview

The LMH6551MMX/NOPB is a single-channel, high-speed voltage feedback operational amplifier manufactured by Texas Instruments. It features a gain-bandwidth product of 370 MHz and a slew rate of 2.4 kV/µs. The device operates on a supply voltage ranging from 3 V to 12 V with a typical operating current of 11.5 mA per channel. Key electrical specifications include an input offset voltage of 4 mV, input bias current of 4 µA, common-mode rejection ratio of 78 dB, and input voltage noise density of 6 nV/√Hz. It provides an output current capability of 60 mA per channel and is housed in an 8-pin VSSOP package.

Feature Summary

• Delivers high-speed differential output performance suitable for demanding signal processing applications.
• Integrates a wide dynamic range with low input voltage noise density for precision signal integrity.
• Supports flexible power supply configurations within a specified voltage span for diverse system designs.

Applications

• High-speed video buffering and distribution
• RF intermediate frequency (IF) amplification stages
• Data acquisition systems requiring fast settling times

Procurement Notes

Verify the specific suffix MMX against official Texas Instruments documentation to confirm the tape-and-reel packaging format and ensure compatibility with automated surface-mount assembly processes. Confirm RoHS compliance status as indicated by the NOPB designation in current manufacturer datasheets before finalizing procurement orders.

Selection Notes

Select this component when a single-channel differential output is required alongside moderate bandwidth constraints. Compare the 370 MHz gain-bandwidth product against higher-frequency alternatives if system requirements exceed this limit. Evaluate the 8-pin VSSOP package dimensions against available PCB real estate and thermal management capabilities during the design phase.

Part Context

This part belongs to the LMH6551 family of high-speed operational amplifiers designed for video and RF applications. It serves as a differential driver offering balanced outputs to reduce common-mode noise. The device complements other members of the series such as the LMH6550 and LMH6552, which offer varying bandwidth and configuration options for different signal chain architectures.

Replacement Considerations

LMH6551MAX/NOPB is a documented direct substitute offering identical electrical characteristics in an 8-SOIC package.