DAC8803

DAC8803 www.ti.com SBAS340C – JANUARY 2005 – REVISED FEBRUARY 2006 Quad, Serial Input 14-Bit Multiplying Digital-to-Analog Converter FEATURES Relative Accuracy: 1 LSB Max Differential Nonlinearity: 1 LSB Max 2-mA Full-Scale Current with VREF = ±10 V 0.5-µs Settling Time Midscale or Zero-Scale Reset Four Separate 4Q Multiplying Reference Inputs Reference Bandwidth: 10 MHz Reference Dynamics: -105 dB THD SPI™-Compatible 3-Wire Interface: 50-MHz Double Buffered Registers Enable Simultaneous Multichannel Update Internal Power-On Reset Compact SSOP-28 Package Industry-Standard Pin Configuration APPLICATIONS Automatic Test Equipment Instrumentation Digitally-Controlled Calibration SDO SDI CLK CS D0 D1 D2 D3 D4 D5 D6 D7 D8 D9 D10 14 D11 D12 D13 A0 A1 EN DAC A B C D 2:4 Decode Input Register R Input Register R Input Register R Input Register R Power-On Reset DESCRIPTION The DAC8803 is a quad, 14-bit, current-output digital-to-analog converter (DAC) designed to operate from a single +2.7-V to 5-V supply. The applied external reference input voltage VREF determines the full-scale output current. An internal feedback resistor (RFB) provides temperature tracking for the full-scale output when combined with an external I-to-V precision amplifier. A doubled buffered serial data interface offers high-speed, 3-wire, SPI and microcontroller compatible inputs using serial data in (SDI), clock (CLK), and a chip select (CS). In addition, a serial data ou...