Mouser ships Analog Devices’ AD5767 DAC for fibre-based systems

Mouser Electronics now stocks the AD5767 12-bit voltage output denseDAC from Analog Devices. The 16-channel DAC is designed to reduce the system footprint for wired telecommunications systems without compromising performance, says Mouser. It provides the required discrete components and necessary bias ranges for coherent, fibre-based optical systems from medium- to long-haul implementations.

The Analog Devices AD5767 DAC delivers a broad range of unipolar or bipolar output voltages from the user-supplied 2.5V reference. Engineers can monitor each of the DAC’s 16 channels using the integrated output voltage multiplexer, and adjust each output from a minimum output voltage of -20V to a maximum output voltage of +14V.

The output buffers on the DAC can also sink or source up to 20mA, and, if needed, the DAC can execute low-frequency dithering functionality, which eliminates the need for external circuitry. This reduction of external components makes the DAC suitable for indium phosphide Mach-Zehnder modulator (InP MZM) biasing applications. For communications, the AD5767 has a versatile four-wire serial interface that operates at a clock rate of up to 50MHz for write mode and is compatible with a serial peripheral interface (SPI), QSPI, MICROWIRE, and DSP interface standards.

The AD5767 DAC is supplied in a space-saving 4.0 x 4.0mm WLCSP or 6.0 x 6.0mm LFCSP. The DAC has a wide operating temperature range of -40 to +105 degrees C, and is suited for industrial automation, optical networking, analogue output modules, test and measurement equipment, and data acquisition applications.

The AD5767 DAC is supported by the EVAL-AD5767 evaluation board, which integrates an ADP5071 switching regulator from ADI. The evaluation board enables designers to control the AD5767 DAC using the USB port of a Windows-based PC running ADI’s Analysis, Control, Evaluation (ACE) evaluation software. The ACE software provides an intuitive graphical user interface (GUI) to configure modes of operation through the synchronous serial port interface.

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