SNOSDC1A June 2024 – October 2024 LMH1229 , LMH1239
PRODUCTION DATA
The LMH12x9 requires decoupling capacitors to ensure a stable power supply. For power supply decoupling, 0.1μF surface-mount ceramic capacitors must be placed close to each VDD_LDO and VIN supply pin to VSS. Larger bulk capacitors (for example, 10μF and 1μF) are recommended for VIN.
Good supply bypassing requires low inductance capacitors. This can be achieved through an array of multiple small body size surface-mount bypass capacitors to keep low supply impedance. Better results can be achieved through the use of a buried capacitor formed by a VDD and VSS plane separated by 2mil to 4mil dielectric in a printed circuit board.