This is a simple breakout board for Analog Device's AD5330 8-bit
digital-to-analog converter (DAC). The AD5330 has a parallel
interface, and can operate from a 2.5 to 5.5V supply consuming just
The DB0-7 pins, the parallel data inputs, are used to configure the
analog output voltage. CS selects the device, and data is loaded into
the input registers on the rising edge of WR. The GAIN pin allows the
output range to be set at either 0V to VCC or 0V to 2VCC.
Input data to the AD5330 is double-buffered, allowing simultaneous
update of multiple DACs in a system using the LDAC pin. An
asynchronous CLR input resets the contents of the input register and
the DAC register to all zeros. The AD5330 also incorporates a power-on
reset circuit that ensures that the DAC output powers on to 0V and
remains there until valid data is written to the device.
This breadboard friendly board breaks out every necessary pin of the
AD5330 to 0.1" spaced headers. The board includes a decoupling
capacitor, but does not do any voltage regulation; voltage supplied to
the board should be within the specified range.