Texas Instruments provides a recommended PCB layout in the datasheet, but it's also recommended to follow general high-frequency PCB design guidelines, such as using a solid ground plane, minimizing trace lengths, and using bypass capacitors to reduce noise and ringing.
The choice of input and output capacitors depends on the specific application and operating frequency. In general, X7R or X5R ceramic capacitors with low ESR (Equivalent Series Resistance) are recommended. The datasheet provides some guidance on capacitor selection, but it's also recommended to consult with capacitor manufacturers and perform simulations to ensure optimal performance.
The LMH6724MA is rated for operation from -40°C to 85°C, but it's recommended to derate the device's performance at higher temperatures to ensure reliability and prevent thermal shutdown.
Common issues with the LMH6724MA can often be traced back to poor PCB layout, incorrect component selection, or inadequate power supply decoupling. Troubleshooting involves using oscilloscopes and spectrum analyzers to identify the source of the issue, and then making adjustments to the PCB layout, component selection, or power supply design as needed.
While the LMH6724MA is primarily designed as a high-speed amplifier, it can be used in switching regulator applications with some caveats. The device's high bandwidth and slew rate make it suitable for high-frequency switching applications, but it's essential to ensure that the device is properly biased and compensated to prevent oscillation and instability.
LMH6724MA/NOPB datasheet
by Texas Instruments
Findchips
