DAC5681IRGCT

The DAC5681IRGCT from Texas Instruments is a high-speed, 16-bit digital-to-analog converter (DAC) capable of a 1.0 GSPS update rate. This device is designed for applications requiring superior linearity and noise performance.

Key electrical specifications include a 16-bit resolution, a 1.0 GSPS sample/update rate, and an LVDS parallel data interface. It operates within a voltage range of 1.71V to 2.15V and features both external and internal reference types. The output type is current, unbuffered, with a differential output. The architecture is current sink, and it offers a settling time of 10.4 ns (typical).

The DAC5681IRGCT operates over an industrial temperature range of -40°C to 85°C. It is housed in a 64-VQFN (9x9 mm) package, suitable for surface mount applications. The device includes an on-chip delay lock loop (DLL) for simplified LVDS interfacing and on-chip termination for lower EMI. It also features an 8-sample input FIFO and an on-chip 1.2V reference.

This DAC is characterized by its high performance, including an SFDR of 81 dB and an ACLR of 73 dBc at 180 MHz. The scalable output current ranges from 2 to 20 mA. The DAC5681IRGCT is pin-compatible with other family members like the DAC5681Z and DAC5682Z.