ADS41B49IRGZT

The ADS41B49IRGZT is a high-performance, 14-bit analog-to-digital converter (ADC) from Texas Instruments, designed for demanding applications requiring high-speed data conversion. With a maximum sampling rate of 250 MSPS and a pipelined architecture, this device delivers excellent dynamic performance including a typical signal-to-noise ratio (SNR) of 69.7 dB and a spurious-free dynamic range (SFDR) of 89 dB. The integrated high-impedance analog input buffer simplifies the input drive design by presenting a low input capacitance of 2 pF and a 200-MHz input resistance of 3 kΩ.

The ADC operates from a 1.8V supply and features a differential input with a 1.5 V peak-to-peak input voltage range. It supports both DDR LVDS and parallel CMOS output interfaces, providing flexibility in system design. The device is housed in a compact 48-VFQFN Exposed Pad package (48-VQFN 7x7 mm) and is rated for surface mount assembly. The operating temperature range spans from -40°C to 85°C, making it suitable for industrial environments.

Typical power consumption is 350 mW, with the analog core drawing 180 mW, the buffer drawing 96 mW, and the I/O drawing 135 mW in DDR LVDS mode. The device also includes features such as programmable gain for SNR/SFDR trade-off and DC offset correction. The ADS41B49IRGZT is part of the ADS41Bx9 family, which includes a 12-bit variant (ADS41B29).