The recommended PCB layout for the MAX6968AUE+T involves keeping the input and output traces as short as possible, using a solid ground plane, and placing the device close to the power source. Additionally, it's recommended to use a 4-layer PCB with a dedicated power plane and a dedicated ground plane to minimize noise and EMI.
To ensure proper power-up and initialization, the MAX6968AUE+T requires a power-on reset (POR) circuit to ensure that the device is properly reset during power-up. The POR circuit should be designed to provide a minimum of 1ms reset pulse to the RST pin. Additionally, the device should be powered up with a monotonic power supply ramp to prevent latch-up or other issues.
The MAX6968AUE+T can drive a maximum capacitive load of 100nF. Exceeding this limit may cause the device to oscillate or become unstable. If a larger capacitive load is required, an external buffer or amplifier may be necessary.
To troubleshoot issues with the MAX6968AUE+T, start by verifying the power supply voltage and ensuring that it is within the recommended operating range. Check the input and output signals using an oscilloscope to ensure they are within the expected ranges. Also, verify that the device is properly reset during power-up and that the POR circuit is functioning correctly. If the issue persists, consult the Maxim Integrated Products support resources or contact their technical support team for further assistance.
The MAX6968AUE+T is rated for operation up to 125°C, but it's recommended to derate the device's performance and power consumption at higher temperatures. Consult the datasheet and application notes for specific guidance on using the device in high-temperature applications.
MAX6968AUE+T datasheet
by Maxim Integrated Products
