Digilent410-397Datenkonvertierung, Entwicklungsplatinen und -kits

The Zmod DAC uses the SYZYGY standard, which offers a much higher speed/bandwidth digital interface than Pmods (link to Pmod subpage), but at a much smaller and lower-cost form-factor than FMC, enabling the user to configure an FPGA development board with the right I/O for their application. Driven by the SYZYGY carrier, the Zmod DAC can simultaneously generate two ±5V signals with 14 bits of resolution at a sample rate up to 100MS/s. Analog outputs can be connected to a circuit using SMA cables.

The Zmod DAC is intended to be included in user-designed data acquisition or signal processing systems. Digilent recommends them for compact, configurable, and rugged systems, though the high bandwidth and sampling rate (100 MSPS), the flexible input/output range, the high resolution, and the flexibility provided by the FPGA interface make it ideal for a wide variety of applications. Two Zmod DACs paired with any FPGA board using the SYZYGY standard, like Digilent’s Eclypse Z7, could be used to generate high sample rate analog signals.

Features

   • Channels: 2

   • Channel type: single-ended

   • Resolution: 14-bit

   • Absolute Resolution (amplitude ≤1.25V): 167μV

   • Absolute Resolution (amplitude >1.25V): 665μV

   • Output impedance: 50Ω

   • Sample rate (real time): 100MS/s.

   • AC amplitude (max): ±5 V.

   • Analog bandwidth: 40 MHz @ 3dB, 20 MHz @ 0.5dB, 14 MHz @ 0.1dB

   • Slew rate (2V step): 180V/μs