A good PCB layout for the MAX5742EUB+ involves keeping the analog and digital grounds separate, using a solid ground plane, and placing the device close to the power supply. Additionally, it's recommended to use a 4-layer PCB with a dedicated power plane and a dedicated ground plane to minimize noise and ensure optimal performance.
The MAX5742EUB+ requires a single 2.7V to 5.5V power supply. It's recommended to power the device with a clean, low-noise power supply, and to ensure that the power supply is stable before applying signals to the device. The power sequencing requirements are not critical, but it's recommended to power the device after the power supply has stabilized.
The MAX5742EUB+ can drive a maximum capacitive load of 100pF. Exceeding this limit may affect the device's stability and performance.
The output voltage of the MAX5742EUB+ can be adjusted by using an external resistor divider network connected to the FB pin. The output voltage can be calculated using the formula: VOUT = 1.25V x (R1 + R2) / R2, where R1 and R2 are the resistors in the divider network.
The thermal derating of the MAX5742EUB+ is 1.5mA/°C above 25°C. This means that the device's output current capability decreases as the temperature increases. It's essential to ensure proper thermal management to maintain the device's performance and reliability.
MAX5742EUB+ datasheet
by Maxim Integrated Products
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