Hello,
I was looking for alternatives to the MCP4725, faster and with more bits, and I found something interesting.
"Did you say 12 GSPS"?
I imagine it's not easy to operate a DAC of this speed. Maybe a hyper-fast FPGA?
What faster DAC has anyone used in a project with Arduino?
The AFE7950 is a high performance, wide bandwidth multi-channel transceiver, integrating four RF sampling transmitter chains, four RF sampling receiver chains and two RF sampling feedback chains (six RF sampling ADCs total). With operation up to 12 GHz, this device enables direct RF sampling in the L, S, C and X-band frequency ranges without the need for additional frequency conversions stages. This improvement in density and flexibility enables high-channel-count, multi-mission systems.
The TX signal paths support interpolation and digital up conversion options that deliver up to 1200 MHz of signal bandwidth for four TX or 2400 MHz for two TX. The output of the DUCs drives a 12-GSPS DAC (digital to analog converter) with a mixed mode output option to enhance 2nd Nyquist operation. The DAC output includes a variable gain amplifier (TX DSA) with 40-dB range and 1-dB analog and 0.125-dB digital steps.
ultra-high-speed correlation processor for FPGA (Field-Programmable Gate Array) which is based on MDF (multiple-path delay feedback) pipelined FFT (fast Fourier transform) architecture. In order to decrease the resource cost and processing delay, the FFT processor is based on DIF (Decimation in Frequency) decomposition method, and the IFFT processor is based on DIT (Decimation in Time) decomposition method. The data input and output of the correlation processor are both in natural order. The main clock speed of the processor FPGA implementation can be higher than 200 MHz and is able to process continuous complex input at more than 1.6Gsps (giga samples per second).
