LMH6618MKX/NOPB

Overview

The LMH6618MKX/NOPB is a single-channel, high-speed operational amplifier manufactured by Texas Instruments. It features a gain-bandwidth product of 71 MHz and a slew rate of 57 V/µs. The device operates on a single supply voltage ranging from 2.7 V to 11 V with a typical quiescent current of 1.25 mA per channel. Key electrical specifications include an input offset voltage of 1.3 mV, input bias current of 1.9 µA, and a common-mode rejection ratio of 108 dB. It provides rail-to-rail input and output capabilities and delivers an output current of 35 mA. The component is housed in a SOT-23-6 package and supports operation temperatures from -40°C to +125°C.

Feature Summary

• Rail-to-rail input and output capability for maximum dynamic range
• High slew rate of 57 V/µs for fast signal response
• Integrated shutdown function for power management
• Low noise performance with 10 nV/√Hz input voltage noise density

Applications

• Portable battery-powered equipment requiring low current consumption
• Video buffering and signal conditioning circuits
• Active filtering applications in communication systems
• Data acquisition systems requiring high speed and precision

Procurement Notes

Verify the manufacturer designation as Texas Instruments, as National Semiconductor was acquired. Confirm the specific suffix MKX indicates tape and reel packaging. Ensure the NOPB suffix confirms lead-free and RoHS compliance. Cross-reference the exact part number with official datasheets to validate pinout and thermal characteristics before procurement.

Selection Notes

Select this component when a single-channel op amp with rail-to-rail I/O is required in a compact SOT-23-6 package. It is suitable for designs needing moderate bandwidth (71 MHz) and low power consumption (1.25 mA). Consider the 1.3 mV offset voltage and 108 dB CMRR for precision requirements. Evaluate the 35 mA output drive capability against load requirements.

Part Context

This device belongs to the LMH661x series of high-speed operational amplifiers. It is the single-channel variant of the LMH6619 dual-channel amplifier. The series is designed for applications demanding high slew rates and wide bandwidth in small form factors. The MKX suffix typically denotes reel packaging for automated assembly processes.

Replacement Considerations

LMH6618MKE/NOPB: Pin-compatible alternative in a different package type.

FAQ

Does the LMH6618MKX/NOPB support dual supply operation?

Yes, it can operate with dual supplies within the total voltage range of 2.7 V to 11 V.

What is the maximum operating temperature for this component?

The maximum operating temperature is +125°C.