DAC7558

DAC7558 www.ti.com SLAS435A – MAY 2005 – REVISED DECEMBER 2005 12-BIT, OCTAL, 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: 1.8 mA (Max) Per-Channel Power Down: 2 µA (Max) Power-On Reset to Zero Scale and Mid Scale SPI-Compatible Serial Interface: Up to 50 MHz Simultaneous or Sequential Update Asynchronous Clear Binary and Twos-Complement Capability Daisy-Chain Operation 1.8-V to 5.5-V Logic Compatibility Specified Temperature Range: –40°C to 105°C Small, 5-mm x 5-mm, 32-Lead QFN Package APPLICATIONS Portable Battery-Powered Instruments Digital Gain and Offset Adjustment Programmable Voltage and Current Sources Programmable Attenuators Industrial Process Control DESCRIPTION The DAC7558 is a 12-bit, octal-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 DAC7558 operates from a single 2.7-V to 5.5-V supply. The DAC7558 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, Micro...