DAC7554

DAC7554 www.ti.com SLAS399A – OCTOBER 2004 – REVISED NOVEMBER 2004 12-BIT, QUAD, ULTRALOW GLITCH, VOLTAGE OUTPUT DIGITAL-TO-ANALOG CONVERTER FEATURES 2.7-V to 5.5-V Single Supply 12-Bit Linearity and Monotonicity Rail-to-Rail Voltage Output Settling Time: 5 µs (Max) Ultralow Glitch Energy: 0.1 nVs Ultralow Crosstalk: –100 dB Low Power: 880 µA (Max) Per-Channel Power Down: 2 µA (Max) Power-On Reset to Zero Scale SPI-Compatible Serial Interface: Up to 50 MHz Simultaneous or Sequential Update Specified Temperature Range: –40°C to 105°C Small 10-Lead MSOP Package APPLICATIONS Portable Battery-Powered Instruments Digital Gain and Offset Adjustment Programmable Voltage and Current Sources Programmable Attenuators Industrial Process Control DESCRIPTION The DAC7554 is a quad-channel, voltage-output DAC with exceptional linearity and monotonicity. Its proprietary architecture minimizes undesired transients such as code to code glitch and channel to channel crosstalk. The low-power DAC7554 operates from a single 2.7-V to 5.5-V supply. The DAC7554 output amplifiers can drive a 2-kΩ, 200-pF load rail-to-rail with 5-µs settling time; the output range is set using an external voltage reference. The 3-wire serial interface operates at clock rates up to 50 MHz and is compatible with SPI, QSPI, Microwire, and DSP interface standards. The outputs of all DACs may be updated simultaneously or sequentially. The parts incorporate a power-on-reset circuit to ...