Dual 24-bit ADC — no external converter needed
The MSP430AFE222IPWR: The two 24-bit sigma-delta ADCs are the reason you pick this part over a plain MSP430G2xx or an 8-bit MCU. They give you enough resolution for class 0.5 or class 1 energy metering, strain-gauge bridges, or thermocouple linearization right on the chip. The 12 MHz CPU16 core handles the math and the SPI or UART interface for reporting — all in a 24-TSSOP package that fits a compact PCB layout.
If you are looking for a second-source or a drop-in alternative within the MSP430AFE family, the pin-compatible MSP430AFE221 and MSP430AFE223 differ mainly in Flash and RAM size —
