12-bit SAR ADC with parallel interface
The Maxim MAX1290ACEI+ is a 12-bit successive-approximation register (SAR) analog-to-digital converter with a built-in multiplexer and sample-and-hold, packaged in a 28-QSOP. It samples at 400k samples per second and presents data over a parallel interface, making it a straightforward drop-in for microprocessor-based data acquisition systems that need a clean 12-bit path without serial protocol overhead.
Input flexibility and supply rails
The ADC accepts either pseudo-differential or single-ended inputs, configurable across 4 or 8 channels via the internal mux. The analog supply is fixed at 5 V, while the digital supply runs from 2.7 V to 5.5 V.
Lifecycle and compliance
The MAX1290ACEI+ is listed as Active on Maxim's product status and is ROHS3 compliant.