The AD7305BRZ is a quad 8-bit Digital-to-analog Converter (DAC) operates from a single 3 to 5V supply or ±5V supplies. The reference input range includes both supply rails allowing for positive or negative full-scale output voltages. Operation is guaranteed over the supply voltage range of 2.7 to 5.5V, consuming less than 9mW from a 3V supply. The full-scale voltage output is determined by the external reference input voltage applied. The parallel input AD7305 uses a standard address decode along with the WR control line to load data into the input registers. The double-buffered architecture allows all four input registers to be preloaded with new values, followed by an LDAC control strobe that copies all the new data into the DAC registers, thereby updating the analog output values. When operating from less than 5.5V, the AD7305 is pin-compatible with the popular industry-standard AD7226. An internal power-ON reset places both parts in the zero-scale state at turn-ON.
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