The MAX1211ETL+ requires careful layout and routing to minimize noise and ensure accurate conversions. Maxim Integrated provides a layout guide in the application note AN1890, which recommends separating analog and digital grounds, using a solid ground plane, and keeping the analog input traces short and shielded.
The MAX1211ETL+ does not require calibration, as it is a self-calibrating ADC. However, to achieve the highest accuracy, it is recommended to follow the recommended layout and routing guidelines, use a high-quality voltage reference, and ensure that the analog input signals are properly filtered and buffered.
The maximum sampling rate of the MAX1211ETL+ is 1Msps. The power consumption of the device increases with the sampling rate, but it is typically around 15mW at 1Msps. To reduce power consumption, the sampling rate can be reduced or the device can be put into shutdown mode when not in use.
The MAX1211ETL+ has built-in overvoltage protection on the analog input pins, which can withstand voltages up to ±16V without damage. However, it is recommended to use external protection circuitry, such as voltage dividers or clamping diodes, to prevent damage from excessive voltage transients. Undervoltage conditions are not a concern, as the device can operate with input voltages as low as 0V.
Yes, the MAX1211ETL+ can be used in a multiplexed configuration. The device has a separate analog input pin for each channel, and the channels can be multiplexed using external analog switches or multiplexers. The device can also be used in a simultaneous sampling configuration, where all channels are sampled simultaneously.
MAX1211ETL+ datasheet
by Maxim Integrated Products
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