Does the ADC on the PIC32MZ EC work well? Should I use it?

The short answer to both questions is NO. The ADCs found in the PIC32MZ EF work great. Please use one of these devices instead.

The PIC32MZ EC ADC has a design flaw that limits its performance (maximum throughput rate: 125 KSPS, effective number of bits: 7). See the “PIC32MZ EC Family Silicon Errata and Data Sheet Clarification” document for more details. The ADCs found on the PIC32MZ EF devices are 12 bit and have a maximum sample rate of 18 MSPS. There are also many more configuration options for these ADCs.

The MPLAB Harmony Configurator (MHC) makes all PIC32 ADC configuration options available to you. If you try to use a configuration option not supported for your device, you will get this warning message:
"Warning: Driver implementation is not available. Only pin management functionality is enabled in this release."
Use a PIC32MZ EF device (instead of the PIC32MZ EC) to eliminate this warning.

© 2017 Microchip Technology, Inc.
Information contained on this site regarding device applications and the like is provided only for your convenience and may be superseded by updates. It is your responsibility to ensure that your application meets with your specifications. MICROCHIP MAKES NO REPRESENTATIONS OR WARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED, WRITTEN OR ORAL, STATUTORY OR OTHERWISE, RELATED TO THE INFORMATION, INCLUDING BUT NOT LIMITED TO ITS CONDITION, QUALITY, PERFORMANCE, MERCHANTABILITY OR FITNESS FOR PURPOSE. Microchip disclaims all liability arising from this information and its use. Use of Microchip devices in life support and/or safety applications is entirely at the buyer's risk, and the buyer agrees to defend, indemnify and hold harmless Microchip from any and all damages, claims, suits, or expenses resulting from such use. No licenses are conveyed, implicitly or otherwise, under any Microchip intellectual property rights.