AFE2256 256-Ch Analog Front End (AFE)

Texas Instruments AFE2256 256-Ch Analog Front End (AFE) meets the requirements for a flat-panel detector (FPD)-based digital x-ray system. The AFE2256 comprises 256 integrators, a programmable gain amplifier (PGA), a correlated double sampler (CDS) with dual banking, and 256:4 analog multiplexers. Additionally, the device includes four 16-bit successive approximation register (SAR) analog-to-digital converters (ADCs). The ADC serial data is available in low-voltage differential signaling (LVDS) format. Power saving features, including nap and power-down modes, enable substantial power saving, especially useful in battery-powered systems.