DAC demonstration board is redesign for the maker community
A demonstration circuit, the DC2459A, features the LTC1668, 50Msample/s, 16bit DAC from Linear Technology. The redesign of the original demonstration circuit has several signal conditioning options for the analogue output, and digital signals may be provided by one of several, inexpensive FPGA development boards. Example FPGA code is provided, which produces digital sine wave data for the DAC.
A benchtop digital pattern generator is an expensive tool, if obvious option to evaluate a DAC. There are a number of boards from the maker community that provide a mix of capability, ease of use and low cost. This board, says the company, provides makers with access to true high performance devices, example code, and a well laid-out PCB for projects and prototyping.
One of the digital connectors is directly compatible with the popular Mojo Spartan 6 FPGA board from Embedded Micro. The Mojo also features an onboard ATmega32U4 processor with Arduino bootloader, providing options for controlling the LTC1668, or leveraging Linduino code to add additional analogue and mixed-signal functionality.