Differential and single-ended inputs — when to use each
The MAX11617EWE+T supports both differential and single-ended input configurations. In single-ended mode, up to 12 channels are available; in differential mode, up to 6 channels. Differential inputs reject common-mode noise and are the right choice when the signal source is remote, the ground reference is noisy, or the signal is small relative to the ADC's full-scale range. Single-ended mode simplifies the wiring when the signal source is local and shares a clean ground with the ADC. The input multiplexer is configured via the I²C interface, so the mode can be changed between conversions if needed.
Reference voltage — internal or external
The MAX11617EWE+T can use either an internal or an external voltage reference. The internal reference is convenient for single-supply designs, but its accuracy and drift are typical-only — if your measurement needs traceable accuracy over temperature, plan to supply an external precision reference. The external reference input accepts a voltage up to the analog supply rail, and the ADC's full-scale range tracks that reference. For a calibration technician, this means the reference choice directly sets the measurement uncertainty budget.
Lifecycle and sourcing
It is ROHS3 compliant. For volume requirements or long-term supply agreements, we can quote against your forecast.