PiWave 150 MS/s Bipolar DAC

The PiWave DAC is an open-source, high-speed digital-to-analog converter (DAC) reference design created for engineers who need fast, precise waveform generation without the complexity of an FPGA. Capable of sample rates up to 150 MS/s, PiWave DAC uses a Raspberry Pi RP2350 microcontroller and its programmable I/O (PIO) subsystem to directly control the DAC's parallel input at high speeds. This architecture eliminates the need for an FPGA allowing the user to create complex waveforms in a open source C programming environment. PiWave DAC is powered and programmed through a single USB-C connector, making it easy to integrate, evaluate, and deploy. Output signal conditioning features include a third order analog filter and a selectable output impedance of 1M or 50 Ohm. The design is available in 10-bit, 12-bit, and 14-bit variants, giving users flexibility to balance speed, resolution, and cost.