Maxim provides a recommended PCB layout in the datasheet, but it's also important to follow general high-frequency PCB design guidelines, such as using a solid ground plane, minimizing trace lengths, and avoiding vias under the device.
The DS2890P-000+ has a thermal pad on the bottom of the package, which should be connected to a solid ground plane or a thermal relief pattern on the PCB to dissipate heat. Additionally, ensure good airflow around the device and consider using a heat sink if necessary.
While the datasheet specifies a minimum input voltage of 2.7V, it's recommended to operate the device at a minimum of 3V to ensure reliable operation and to account for any voltage drops in the system.
Start by verifying the power supply voltage, checking for proper PCB layout and routing, and ensuring that the device is properly soldered. Use an oscilloscope to check the output waveform and verify that it meets the expected specifications. If issues persist, consult the datasheet and application notes or contact Maxim's technical support.
The DS2890P-000+ is rated for operation up to 125°C, but it's essential to consider the device's thermal characteristics and ensure that the system is designed to operate within the specified temperature range. Consult the datasheet and application notes for more information on high-temperature operation.
DS2890P-000+ datasheet
by Maxim Integrated Products
