4x 24-bit sigma-delta ADC — the reason to pick this part
Four independent 24-bit sigma-delta ADCs let the MSP430I2040TRHBT simultaneously sample voltage and current on multiple phases of a polyphase meter, or monitor four sensor bridges in a weigh-scale or flow-meter. The 24-bit resolution provides the dynamic range to resolve microvolt-level signals in the presence of a large DC offset — useful for shunt-based current sensing where the signal is a few millivolts riding on a common-mode voltage. The ADC reference and input range must be designed around the 2.2 V to 3.6 V supply; an external reference is not integrated, so the VREF pin needs a clean decoupled source.
Connectivity and peripherals
Serial interfaces include I²C, SPI, and UART/USART, plus IrDA and SCI — enough for communication with an external EEPROM, a display driver, or a wireless module. The brown-out detect and reset circuit protects against supply dips, and the PWM and watchdog timer handle motor-control timing and system supervision. No CAN or USB is on-chip, so designs needing those protocols require an external bridge.
Lifecycle and sourcing
The MSP430I2040TRHBT carries an active lifecycle status from Texas Instruments. No EOL notice or NRND flag is on record, so it remains a safe choice for new BOM entries and production builds. The part is supplied in Tape & Reel or Cut Tape, suitable for automated pick-and-place. For volume pricing and lead-time confirmation, submit an RFQ — availability and current pricing are confirmed at quote time through independent distribution channels.