12-bit SAR ADC with SPI and internal reference
The MAX176ACPA+ is a 12-bit successive-approximation-register (SAR) ADC from Analog Devices, sampling at 250k samples per second. The single-ended input feeds a sample-and-hold stage with a 1:1 S/H:ADC ratio, and the internal reference eliminates the need for an external voltage source in many designs. Data is read over an SPI interface, which keeps the digital pin count low and simplifies connection to most MCUs. The 12-bit resolution at 250k SPS suits applications like industrial sensor readout, data acquisition, and control-loop feedback where moderate speed and accuracy are required.
The analog and digital supply ranges overlap: both accept 5 V, with the analog rail also accepting -12 V to 15 V.
Active lifecycle and through-hole package
No end-of-life notice or successor part is recorded on this listing. Housed in an 8-pin DIP package (8-DIP, 0.300" body width, 7.62 mm pitch) with through-hole mounting, it ships in a tube. The PDIP footprint is breadboard-friendly and suits prototyping or low-volume production runs where rework access matters.