Texas Instruments recommends a layout that minimizes parasitic inductance and capacitance, with short traces and minimal vias. A solid ground plane and decoupling capacitors close to the op-amp are also recommended. See the TI application note 'Op Amp Layout and PCB Considerations' for more details.
The output capacitor should be chosen based on the desired closed-loop bandwidth and stability. A general rule of thumb is to choose a capacitor with a value between 10nF to 100nF. However, the optimal value may vary depending on the specific application and layout. See the TI application note 'Stability Analysis of the LMH6647MF' for more details.
The maximum power dissipation of the LMH6647MF is dependent on the ambient temperature and the thermal resistance of the package. For the MSOP package, the maximum power dissipation is approximately 1.4W at 25°C ambient temperature. See the datasheet for more details on thermal characteristics.
Yes, the LMH6647MF can be used as a unity-gain buffer. However, it's recommended to add a small capacitor (e.g. 10nF) in parallel with the feedback resistor to ensure stability. Additionally, the input impedance of the op-amp should be considered when designing the buffer circuit.
To minimize EMI and RFI, it's recommended to use a shielded enclosure, keep the op-amp and surrounding components away from radiating sources, and use a common-mode choke or ferrite bead on the input and output lines. Additionally, a low-pass filter or EMI filter can be added to the input or output stage to further reduce EMI and RFI.
Trust Checks
This model has been verified by system checks.
System Verified
Sponsored
LMH6647MF Overview
Use the download button to access the LMH6647MF schematic symbol and PCB footprint.
To find more CAD model downloads similar to this part, try a partial part number search, like LMH66,
or try a keyword search, such as Operational Amplifiers
About Texas Instruments
Texas Instruments (TI) designs and manufactures semiconductors and integrated circuits for a wide range of applications. The company's product portfolio includes analog chips, which are essential for managing power and signal functions in electronic devices, and embedded processors, which serve as the brains in various systems, enabling functionality in everything from industrial equipment to consumer electronics. TI's innovations in semiconductor technology have made it a leader in the industry.
