a FEATURES Two 12-Bit CMOS DAC Channels with On-Chip Voltage Reference Output Amplifiers Three Selectable Output Ranges per Channel –5 V to +5 V, 0 V to +5 V, 0 V to +10 V Serial Interface 125 kHz DAC Update Rate Small Size: 16-Lead DIP or SOIC Low Power Dissipation APPLICATIONS Process Control Industrial Automation Digital Signal Processing Systems Input/Output Ports LC2MOS Dual 12-Bit Serial DACPORT® AD7249 FUNCTIONAL BLOCK DIAGRAM VDD VSS AD7249 REFOUT 2R ROFSA 2R REFIN 12-BIT DAC A A1 2R VOUTA ROFSB 2R AGND 12-BIT DAC B DGND INPUT SHIFT REGISTER A2 VOUTB GENERAL DESCRIPTION The AD7249 DACPORT contains a pair of 12-bit, voltageoutput, digital-to-analog converters with output amp...

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