Three 24-bit sigma-delta ADCs — the part that earns its keep in metering
The MSP430F67641IPNR integrates three 24-bit sigma-delta ADCs for energy measurement and precision sensor front-ends.
25 MHz CPUXV2 — timing closure for mixed-signal loops
The 25 MHz core clock supports real-time control loops that read the sigma-delta converters.
The 80-LQFP package (12×12 mm) is a standard fine-pitch QFP that reflows on a conventional profile; no special handling beyond MSL 3 bake-out if the moisture-barrier bag has been breached.