Analog Devices AD9139 16 bit 1.6Gsps DAC Available from Mouser Electronics

HiRes_AnalogDevicesAD9139Mouser Electronics, Inc. is now shipping the AD9139 digital to analog converter (DAC) from Analog Devices. The AD9139 is a 16?bit DAC with a high dynamic range and a sampling rate of 1.6 Giga-samples per second (Gsps).

The AD9139 digital to analog converter, available from Mouser Electronics is a high?speed, high dynamic range DAC which permits multicarrier signal generation up to the desired Nyquist frequency. These features specifically targetwideband communications systems and high speed instrumentation. Latency between the 16?bit digital input and the output analog signal is as low as two DAC clock cycles. The 16?bit word to be converted can be loaded into the DAC as a 16?bit word or as 8?bit bytes, making this device suitable for use with 8-bit microcontrollers.

A high performance, low noise phase lock loop (PLL) is on-chip to reduce component count. The AD9139 is designed for low power and draws only 700mW when converting at 1230 Msps. A proprietary filter provides for very low noise that minimizes signal distortion of the output signal. A 16?bit Low Voltage Differential Signaling (LVDS) bus is both byte and word addressable. The LVDS bus is configurable to accept either binary or twos compliment data, providing additional flexibility for hardware system design.

The AD9139 DAC also contains a 2-channel, 16-bit wide, 8-word deep FIFO. This FIFO acts as a buffer between the 16-bit digital input data and the clocked analog output, allowing an asynchronous relationship between the input digital data and the output analog signal.

Interfacing to the AD9139 is provided by an industry standard SPI interface. This interface allows configuration of many of the AD9139 options, including internal reset, configuring the internal FIFO, selecting power down modes, setting interrupts, configuring the internal reference clock, configuring the internal PLL, and reading the internal device temperature.

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