LMH6657MG

Instrumentation, Op Amps, Buffer Amps Overview

The LMH6657MG is a single-channel operational amplifier manufactured by National Semiconductor, now part of Texas Instruments. It features a bandwidth of 270 MHz and operates on a single supply voltage ranging from 3 V to 6 V. Key electrical parameters include an input offset voltage of 5 mV, input bias current of 20 uA, and quiescent current of 6.2 mA per channel. The device supports rail-to-rail input and output capabilities with a maximum dual supply voltage of 6 V and minimum of 1.5 V. It provides a common-mode rejection ratio of 82 dB and power supply rejection ratio of 72 dB. The component is housed in an SOT-23-5 package and functions within a temperature range of -40 C to +85 C.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Provides high-speed signal amplification with a 270 MHz bandwidth for single-supply applications.
• Supports rail-to-rail input and output operation for maximum dynamic range utilization.
• Delivers high output drive capability suitable for demanding load conditions.

Instrumentation, Op Amps, Buffer Amps Applications

• Video buffering and distribution circuits
• High-speed data acquisition systems
• Portable instrumentation requiring single-supply operation

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the manufacturer designation as National Semiconductor or Texas Instruments, as the company was acquired. Confirm the specific suffix 'MG' corresponds to the correct package variant and environmental compliance status. Ensure the component matches the required 270 MHz performance specifications for the intended application before procurement.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component when a single-channel amplifier with 270 MHz bandwidth and rail-to-rail I/O is required under single-supply conditions. Consider the 6.2 mA quiescent current and SOT-23-5 package constraints. Evaluate against alternatives if lower power consumption or higher precision offset voltage is needed.

Instrumentation, Op Amps, Buffer Amps Part Context

The LMH6657 belongs to the LMH665x family of high-speed operational amplifiers designed for video and broadband applications. It is often paired with the dual-channel LMH6658. The series emphasizes low power consumption while maintaining high slew rates and wide bandwidth, making it suitable for portable electronic devices.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

LMH6658MX/NOPB (Dual Channel)

Instrumentation, Op Amps, Buffer Amps FAQ

What is the operating supply voltage range for the LMH6657?

The LMH6657 operates on a single supply voltage ranging from 3 V to 6 V.

Does the LMH6657 support rail-to-rail input and output?

Yes, the LMH6657 features both rail-to-rail input and rail-to-rail output capabilities.