LMH6321MRX

Overview

The LMH6321MRX is a high-speed unity gain buffer manufactured by Texas Instruments, designed for applications requiring significant current drive capabilities. It features a continuous output current of ±300 mA and an adjustable current limit ranging from 10 mA to 300 mA with ±5% accuracy. The device operates on supply voltages between 5V and ±16V, providing a small-signal bandwidth of 110 MHz at ±15V and a slew rate of 1800 V/µs. It includes thermal shutdown protection with an error flag output and is available in an 8-pin SO PowerPAD package.

Feature Summary

• High-speed performance with a 110 MHz bandwidth and 1800 V/µs slew rate
• Adjustable current limit set via external resistor or voltage source
• Capable of driving large capacitive loads without oscillation
• Integrated thermal shutdown with error flag output

Applications

• Line drivers
• Pin drivers
• Sonar drivers
• Motor control systems

Procurement Notes

Verify the specific ordering suffix 'MRX' against official documentation to confirm it corresponds to the standard LMH6321 specifications and the 8-pin SO PowerPAD package. Ensure that any variations in pinout or electrical characteristics associated with this specific suffix are accounted for during integration. Cross-reference the manufacturer's datasheet to validate the exact part number before finalizing procurement orders.

Selection Notes

Select the LMH6321MRX when a high-current buffer is required to isolate high-impedance sources from low-impedance loads. It is suitable for use within the feedback loop of operational amplifiers to boost current output or as a standalone buffer. Consider its wide supply voltage range and adjustable current limit when designing circuits that demand precise control over output drive strength and power dissipation.

Part Context

The LMH6321 series consists of high-speed buffers produced by Texas Instruments, formerly National Semiconductor. These devices are engineered to provide high fidelity and open-loop characteristics, making them ideal for demanding analog signal processing tasks. The family includes various package options to suit different thermal and space constraints in electronic designs.

Replacement Considerations

LMH6321TS/NOPB