AD7339

a FEATURES 8-Bit A/D Converter Two 8-Bit D/A Converters Two 8-Bit Serial D/A Converters Single +5 V Supply Operation On-Chip Reference Power-Down Mode 52-Lead PQFP Package 5 V Integrated High Speed ADC/Quad DAC System AD7339 FUNCTIONAL BLOCK DIAGRAM DVDD1 ADCPDB AIN ADCCLK DA0 DA7 DACCLK DB0 DB7 DACPDB SDATA SCLK SERIAL CONTROL LOGIC DAC 0 REGISTER DAC 1 REGISTER SERIAL DAC 0 SERIAL DAC 1 DAC B REGISTER PARALLEL DAC B DACB DAC A REGISTER PARALLEL DAC A T/H ADC DGND1 AGND1 D0 D7 DACA SDAC0F SDAC0S SDAC1F SDAC1S VREF LATCH SDACPDB GENERAL DESCRIPTION 2.5V REFERENCE AVDD The AD7339 is a composite IC that contains both DAC and ADC functions. The device includes an 8-bit parallel A-to-D converter. Two 8-bit parallel DACs are also included as are two serial control DACs. These serial DACs are 8-bit DACs. The AD7339, which operates with a single 5 V power supply, has a bandgap reference on board with a nominal value of 2.5 V. To reduce the power consumption of the part, each section, except the reference, can be individually powered down when not in use. The AD7339 is available in a 52-lead PQFP package. VREFA AD7339 VREFB DVDD2 DVDD3 DGND2 DGND3 AGND2 AGND3 REV. 0 Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under...