XRD5408/10/12 5V, Low Power, Voltage Output Serial 8/10/12-Bit DAC Family May 2000-2 FEATURES APPLICATIONS D 8/10/12-Bit Resolution D Digital Calibration D Operates from a Single 5V Supply D Battery Operated Instruments D Buffered Voltage Output: 13ms Typical Settling Time D Remote Industrial Devices D 240mW Total Power Consumption (typ) D Cellular Telephones D Guaranteed Monotonic Over Temperature D Motion Control D Flexible Output Range: 0V to V DD D 8 Lead SOIC and PDIP Package D Power On Reset D Serial Data Output for Daisy Chaining GENERAL DESCRIPTION The XRD5408/10/12 are low power, voltage output output allowing the user to daisy chain several of them digital-to-analog converters (DAC) for +3V power supply together. The serial port will support both Microwiret, operation. The parts draw only 70mA of quiescent current SPIt, and QSPIt standards. and are available in both an 8-lead PDIP and SOIC package. The outputs of the XRD5408/10/12 are set at a gain of +2. The XRD5408/10/12 have a 3 wire serial port with an The output short circuit current is 7mA typical. ORDERING INFORMATION Operating Part No. Package Temperature Range XRD5408AID 8 Lead 150 Mil JEDEC SOIC -40C to +85C XRD5408AIP 8 Lead 300 Mil PDIP -40C to +85C XRD5410AID 8 Lead 150 Mil JEDEC SOIC -40C to +85C XRD5410AIP 8 Lead 300 Mil PDIP -40C to +85C XRD5412AID 8 Lead 150 Mil JEDEC SOIC -40C to +85C XRD5412AIP 8 Lead 300 Mil PDIP -40C to +85C Rev. 1.20 E2000 EXAR Corporation, 48720 Kato Road, Fremont, CA 94538z (510) 668-7000z (510) 668-7017XRD5408/10/12 BLOCK DIAGRAM V REFIN n 2 Switch + Matrix V OUT - R R AGND V V DD DD CS Shift Register SCLK DOUT SDIN Power On Reset Figure 1. Block Diagram PIN CONFIGURATION 1 8 SDIN V DD 1 8 SDIN V DD 2 7 SCLK V 2 7 OUT SCLK V OUT 3 6 CS V 3 6 CS V REFIN REFIN 4 5 DOUT AGND DOUT 4 5 AGND 8 Lead SOIC (Jedec, 0.150) 8 Lead PDIP (0.300) PIN DESCRIPTION Pin Symbol Description 1 SDIN Serial Data Input 2 SCLK Serial Data Clock 3 CS Chip Select (Active High) 4 DOUT Serial Data Output 5 AGND Analog Ground 6 V Voltage Reference Input REFIN 7 V DAC Output OUT 8 V Supply Voltage DD Rev. 1.20 2