LMH6642MF

Instrumentation, Op Amps, Buffer Amps Overview

The LMH6642MF is a single-channel, low-power, high-speed voltage feedback operational amplifier from the LMH664x family. It features a gain-bandwidth product of 130 MHz and a slew rate of 130 V/µs. The device operates on a supply voltage range of 2.7 V to 12.8 V with a typical supply current of 2.7 mA per channel. It provides rail-to-rail output swing within 40 mV of either supply rail and delivers an output short-circuit current up to 145 mA. Input common-mode voltage extends 0.5 V beyond V- and 1 V from V+. The component is housed in a 5-pin SOT-23 package.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Rail-to-rail output stage capable of driving heavy loads with approximately 75 mA linear output current.
• High speed performance with 130 MHz bandwidth and fast settling time for accurate signal reproduction.
• Low power consumption suitable for portable applications while maintaining professional video quality.
• Output short circuit protection ensures device safety during fault conditions.

Instrumentation, Op Amps, Buffer Amps Applications

• ADC buffer amplifiers
• Active filters for various supplies
• Portable video systems
• Current sense buffers

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific ordering suffix (e.g., MF/NOPB) against the manufacturer's official datasheet to confirm the exact package type and environmental compliance status. Ensure the selected variant matches the required thermal and electrical specifications for the target application environment.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component when a single-channel amplifier with rail-to-rail output and high drive capability is required. Consider the LMH6643 or LMH6644 if dual or quad channel configurations are needed instead. Evaluate the SOT-23 package constraints regarding thermal dissipation and board space availability.

Instrumentation, Op Amps, Buffer Amps Part Context

The LMH6642 is part of the LMH664x family, which includes dual (LMH6643) and quad (LMH6644) variants. These devices share similar electrical characteristics but differ in channel count and pinout configurations. The family is designed for low-cost, high-performance applications requiring wide dynamic range and low distortion.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

Direct substitutes include other members of the LMH664x family such as the LMH6643 or LMH6644, provided the channel count and pinout compatibility are verified. Cross-referencing with National Semiconductor legacy data sheets may identify equivalent older part numbers.