AD5300*

The AD5300 is a single, 8-bit buffered voltage out DAC thatoperates from a single +2.7 V to +5.5 V supply consuming115 mA at 3 V. Its on-chip precision output amplifier allowsrail-to-rail output swing to be achieved. The AD5300 utilizes aversatile threewire serial interface that operates at clock rates upto 30 MHz and is compatible with standard SPI™, QSPI™,MICROWIRE™ and DSP interface standards.

The reference for AD5300 is derived from the power supplyinputs and thus gives the widest dynamic output range. The partincorporates a power-on-reset circuit that ensures that the DACoutput powers up to zero volts and remains there until avalidwrite takes place to the device. The part contains a power-downfeature that reduces the current consumption of the device to200 nA at 5 V and provides software selectable output loadswhile in power-down mode. The part is put into power-downmode over the serial interface.

The low power consumption of this part in normal operationmakes it ideally suited to portable battery operated equipment.The power consumption is 0.7 mW at 5 V reducing to 1 mW inpower-down mode.

The AD5300 is one of a family of pin-compatible DACs. TheAD5310 is the 10-bit version and the AD5320 is the 12-bitversion. The AD5300/AD5310/AD5320 are available in 6-leadSOT-23 packages and 8-lead mSOIC packages.