12-bit SAR ADC with flexible input mux
The MAX1203BEAP+ is a 12-bit successive-approximation ADC from Analog Devices, built around a MUX-S/H-ADC architecture that accepts either 4 differential or 8 single-ended inputs through the on-chip multiplexer. Sampling at 133k samples per second, it delivers the throughput needed for industrial sensor acquisition, data-logging front ends, and battery-monitoring channels where 12-bit resolution is the sweet spot between cost and accuracy. The SPI digital interface keeps the pin count low and ties directly to most microcontrollers without glue logic.
The 20-pin SSOP (0.209" body width, 5.30 mm) is a surface-mount footprint that saves board area compared to a wider SOIC, and the tube shipping medium is typical for prototype and low-to-mid volume builds.