The recommended PCB layout for the MAX849ESE+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 the accuracy of the voltage measurement with the MAX849ESE+T, it's essential to use a high-precision voltage reference, such as the MAX6126, and to calibrate the device during production. Additionally, the input voltage should be filtered to remove noise and ripple, and the device should be operated within its specified temperature range.
The MAX849ESE+T can handle input voltages up to 28V, but it's recommended to operate the device within its specified input voltage range of 4.5V to 24V to ensure accurate voltage measurement and to prevent damage to the device.
The MAX849ESE+T can be interfaced with a microcontroller using a 3-wire SPI interface. The device requires a clock signal, a chip select signal, and a data output signal. The microcontroller can read the voltage measurement data from the MAX849ESE+T by sending a read command and clocking in the data.
The power consumption of the MAX849ESE+T is typically around 1.2mA when operating at a supply voltage of 5V. However, the power consumption can vary depending on the input voltage, operating frequency, and other factors.
MAX849ESE+T datasheet
by Maxim Integrated Products
