ADS5281IRGCT

The ADS5281IRGCT is a high-performance, low-power octal analog-to-digital converter (ADC) from Texas Instruments. It offers 12-bit resolution with a maximum sampling rate of 50 MSPS, making it suitable for multi-channel data acquisition systems. The device features eight differential input channels with a 2 Vpp input voltage range and a 520 MHz analog input bandwidth.

Key electrical characteristics include a typical signal-to-noise ratio (SNR) of 70 dB at 10 MHz IF, an effective number of bits (ENOB) of 11.3 bits, and a spurious-free dynamic range (SFDR) of 85 dB. Power consumption is 512 mW typical at 50 MSPS for all channels, or 64 mW per channel. The ADC uses a pipelined architecture with simultaneous sampling and supports both external and internal reference options.

The device operates from a 3.3 V analog supply and a 1.8 V digital supply, with an operating temperature range of -40°C to 85°C. Data output is via serialized DDR LVDS with programmable current drive and internal termination. The ADS5281IRGCT is available in a 64-VQFN (9x9 mm) package with exposed pad for surface mount assembly.