AD9788BSVZ

The AD9788BSVZ is a 16-bit, high dynamic range TxDAC device from Analog Devices, capable of a sample rate of 800 MSPS. This allows for multicarrier generation up to the Nyquist frequency. It is designed for direct conversion transmit applications, featuring complex digital modulation, and gain, phase, and offset compensation.

The device provides an adjustable analog output current ranging from 8.7 mA to 31.7 mA into a load of 25 Ω to 50 Ω. It includes a low-power, 32-bit complex numerically controlled oscillator (NCO) that adds less than 300 mW of power. Auxiliary DACs are included for I and Q gain matching and offset control, along with programmable I and Q phase compensation and internal digital upconversion capability.

Manufactured on a 0.18 μm CMOS process, the AD9788BSVZ operates from 1.8 V and 3.3 V supplies. It is supplied in a 100-lead, exposed pad TQFP package, suitable for surface mounting.

Key features include a high-performance, low-noise PLL clock multiplier and a digital inverse sinc filter. The DAC outputs are optimized to interface seamlessly with analog quadrature modulators. A serial peripheral interface (SPI) allows for programming and readback of internal parameters.